chemical reaction Crossword Puzzles
vocab 6b 2017-03-20
Across
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
- horizontal row of elements on the Periodic Table that have the same number of electron shells.
- states that matter is neither created nor destroyed in ordinary chemical and physical changes.
- electrons on the outermost energy level of an atom that determine the reactivity of the atom.
Down
- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction
- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
- an interaction that holds atoms together.
- vertical column of elements on the Periodic Table that have similar physical and chemical properties.
8 Clues: an interaction that holds atoms together. • electrons on the outermost energy level of an atom that determine the reactivity of the atom. • horizontal row of elements on the Periodic Table that have the same number of electron shells. • states that matter is neither created nor destroyed in ordinary chemical and physical changes. • ...
Vocab 6B 2017-03-23
Across
- horizontal row of elements on the Periodic Table that have the same number of electron shells
- electrons on the outermost energy level of an atom that determine the reactivity of the atom
- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction
Down
- vertical column of elements on the Periodic Table that have similar physical and chemical properties
- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction
- an interaction that holds atoms together.
- states that matter is neither created nor destroyed in ordinary chemical and physical changes
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table
8 Clues: an interaction that holds atoms together. • electrons on the outermost energy level of an atom that determine the reactivity of the atom • horizontal row of elements on the Periodic Table that have the same number of electron shells • states that matter is neither created nor destroyed in ordinary chemical and physical changes • ...
Thermochemistry Vocab 2023-04-28
Across
- a substance that is present at the start of a chemical reaction.
- a reaction in which energy is released in the form of light or heat
- unit of work or energy in the International System of Units
- the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gasses.
- the Standard International ( SI ) unit of thermodynamic temperature.
- The amount of energy necessary to change a liquid to a vapor at constant temperature and pressure.
- the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
- the energy contained within a system that is responsible for its temperature
- the branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions.
- a substance that is present at the end of a chemical reaction.
- the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).
- (of a reaction or process) accompanied by or requiring the absorption of heat.
Down
- the science of determining the change in energy of a system by measuring the heat exchange of the system with the surroundings.
- the amount of energy needed to warm 1 g of H2O by 1°C
- energy that comes from a source and travels through space at the speed of light.
- the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
- scale based on 0° for the freezing point of water and 100° for the boiling point of water.
- Solids can be heated to the point where the molecules holding their bonds together break apart and form a liquid.
- the energy that comes from motion
19 Clues: the energy that comes from motion • the amount of energy needed to warm 1 g of H2O by 1°C • unit of work or energy in the International System of Units • a substance that is present at the end of a chemical reaction. • a substance that is present at the start of a chemical reaction. • a reaction in which energy is released in the form of light or heat • ...
Chemistry 2025-04-03
Across
- acids composed of two atoms, a hydrogen element and a nonmetal element.
- an acid that lost its hydrogen ion
- a point in a titration that signifies the completion of the titration by a change in the colour or intensity of the solution.
- acids that can lose several protons per molecule
- a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
- a substance that donates a proton to another substance.
- a solution that can resist changes in PTT when an acid or base is added to it; a buffer
- compounds that, when dissolved in water, increase the concentration of hydrogen ions (H+) and are characterized by a sour taste and a pH below 7
Down
- a proton acceptor
- a hydrodium ions are the combination of a water molecule and a hydrogen ion, resulting in the formula, H 3 O +.
- two substances that differ only by the presence of a proton
- the substance that causes a solution to resist change
- acids composed of two atoms, a hydrogen element and a nonmetal element
- An acid that breaks down completely and gives off many ions, or protons
- (of a compound, especially a metal oxide or hydroxide) able to react both as a base and as an acid.
- the slow addition of one solution of a known concentration (called a titrant) to a known volume of another solution of unknown concentration until the reaction reaches neutralization.
- a chemical reaction in which acid and a base react with an equivalent quantity of each other.
- a chemical reaction in which a chemical compound is broken down by reaction with water.
- any process by which electrically neutral atoms or molecules are converted to electrically charged atoms or molecules (ions) through gaining or losing electrons .
- low concentration of OH ions.
20 Clues: a proton acceptor • low concentration of OH ions. • an acid that lost its hydrogen ion • acids that can lose several protons per molecule • the substance that causes a solution to resist change • a substance that donates a proton to another substance. • two substances that differ only by the presence of a proton • ...
Chemical Bonds 2024-12-19
Across
- A chemical reaction which releases energy into the environment which results in an increase in temperature.
- A chemical change where a substance changes its shape,size,color,form,and identity.
- Bonds that transfer electrons from one atom to another to complete a full outer shell.
- Groups of atoms held together with chemical bonds in a substance.
- Bonds that share electrons from one atom to another to complete a full outer shell.
Down
- A chemical reaction which draws energy from the environment which results in a decrease in temperature.
- Bonds that connect atoms in a substance to determine its identity.
- A formula formed by chemical symbols, coefficients, and subscripts to show its identity.
- Electrons on the outermost shell.
- The smallest kind of matter containing Protons,Neutrons, Electrons.
10 Clues: Electrons on the outermost shell. • Groups of atoms held together with chemical bonds in a substance. • Bonds that connect atoms in a substance to determine its identity. • The smallest kind of matter containing Protons,Neutrons, Electrons. • A chemical change where a substance changes its shape,size,color,form,and identity. • ...
Strand 3 Reactions 2021-06-28
Across
- Is a measure of how acidic or basic a substance is
- A reaction which releases heat
- proton donors
- A reaction which absorbs heat
- a proton acceptor
Down
- Used in titration experiment
- Containing water
- Reactions which proceed in both directions (forward and backward).
- increases the rate of chemical reaction by providing an alternative pathway for the reaction
- is the heat content of a substance.
10 Clues: proton donors • Containing water • a proton acceptor • Used in titration experiment • A reaction which absorbs heat • A reaction which releases heat • is the heat content of a substance. • Is a measure of how acidic or basic a substance is • Reactions which proceed in both directions (forward and backward). • ...
chemical reactions and equations. 2024-05-06
Across
- Type of reaction in which the reduction and oxidation takes place simultaneously.
- Gas present in closed chip packets.
- Type of reaction in which heat energy is absorbed.
- One or group of atoms replaced by another group of atoms.
- Type of reaction in which a single substance turns into 2 or more substances.
- coating a metal with zinc to prevent corrosion.
Down
- type of reaction in which 2 or more substances join to form a single substance.
- Type of reaction in which heat energy is evolved.
- oxidation of oils or fats resulting in bad taste and smell.
- Eating up of metals as a result of exposure to moisture and oxygen.
- agent which helps in Substance which loses hydrogen but gains oxygen.
- Process in which one or more subsatnces react to form new substances.
- shorthand notation of actually occuring chemical reactions, with help of symbols and formulae.
- agent which helps in Substance which loses oxygen but gains hydrogen.
- Known as the king of acids
15 Clues: Known as the king of acids • Gas present in closed chip packets. • coating a metal with zinc to prevent corrosion. • Type of reaction in which heat energy is evolved. • Type of reaction in which heat energy is absorbed. • One or group of atoms replaced by another group of atoms. • oxidation of oils or fats resulting in bad taste and smell. • ...
Keystone Crossword #1 2025-10-17
Across
- The organelle where cellular respiration is carried out. (sing.)
- When monomers form polymers through the removal of a water molecule, a chemical reaction.
- Macromolecules that perform a diverse set of functions for the body, and are present throughout. Examples include keratin and cartilage.
- Macromolecules that function as immediate energy for organisms.
Down
- The amount of energy needed to catalyze a chemical reaction.
- A subsection of protein that catalyzes chemical reactions.
- Collection of organs that contribute to a common function.
- Collection of organisms of the exact species inhabiting the same geographic region.
- Collection of cells contributing to an alike function.
- Macromolecules that hold genetic information for the body.
- Collection of tissues contributing to an alike function.
- An organelle found in plant cells that performs photosynthesis.
12 Clues: Collection of cells contributing to an alike function. • Collection of tissues contributing to an alike function. • A subsection of protein that catalyzes chemical reactions. • Collection of organs that contribute to a common function. • Macromolecules that hold genetic information for the body. • The amount of energy needed to catalyze a chemical reaction. • ...
Vocab 6B 2017-03-23
Across
- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
- an interaction that holds atoms together.
- horizontal row of elements on the Periodic Table that have the same number of electron shells.
- electrons on the outermost energy level of an atom that determine the reactivity of the atom.
Down
- states that matter is neither created nor destroyed in ordinary chemical and physical changes.
- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction.
- vertical column of elements on the Periodic Table that have similar physical and chemical properties.
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
8 Clues: an interaction that holds atoms together. • electrons on the outermost energy level of an atom that determine the reactivity of the atom. • states that matter is neither created nor destroyed in ordinary chemical and physical changes. • horizontal row of elements on the Periodic Table that have the same number of electron shells. • ...
Vocabulary 6B 2017-03-24
Across
- horizontal row of elements on the Periodic Table that have the same number of electron shells.
- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
- electrons on the outermost energy level of an atom that determine the reactivity of the atom.
Down
- states that matter is neither created nor destroyed in ordinary chemical and physical changes.
- vertical column of elements on the Periodic Table that have similar physical and chemical properties.
- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction.
- an interaction that holds atoms together.
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
8 Clues: an interaction that holds atoms together. • electrons on the outermost energy level of an atom that determine the reactivity of the atom. • states that matter is neither created nor destroyed in ordinary chemical and physical changes. • horizontal row of elements on the Periodic Table that have the same number of electron shells. • ...
Vocab 6B 2017-03-24
Across
- states that matter is neither created nor destroyed in ordinary chemical and physical changes.
- horizontal row of elements on the Periodic Table that have the same number of electron shells.
- vertical column of elements on the Periodic Table that have similar physical and chemical properties.
Down
- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction.
- electrons on the outermost energy level of an atom that determine the reactivity of the atom.
- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
- an interaction that holds atoms together.
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
8 Clues: an interaction that holds atoms together. • electrons on the outermost energy level of an atom that determine the reactivity of the atom. • states that matter is neither created nor destroyed in ordinary chemical and physical changes. • horizontal row of elements on the Periodic Table that have the same number of electron shells. • ...
6b vocab 2017-03-21
Across
- horizontal row of elements on the Periodic Table that have the same number of electron shells.
- states that matter is neither created nor destroyed in ordinary chemical and physical changes.
- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction.
- vertical column of elements on the Periodic Table that have similar physical and chemical properties.
- an interaction that holds atoms together.
Down
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
- electrons on the outermost energy level of an atom that determine the reactivity of the atom.
- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
8 Clues: an interaction that holds atoms together. • electrons on the outermost energy level of an atom that determine the reactivity of the atom. • horizontal row of elements on the Periodic Table that have the same number of electron shells. • states that matter is neither created nor destroyed in ordinary chemical and physical changes. • ...
julianna wardlaw vocab 6b 2017-03-20
Across
- horizontal row of elements on the Periodic Table that have the same number of electron shells.
- elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
- states that matter is neither created nor destroyed in ordinary chemical and physical changes.
- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction.
Down
- electrons on the outermost energy level of an atom that determine the reactivity of the atom.
- an interaction that holds atoms together.
- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
- vertical column of elements on the Periodic Table that have similar physical and chemical properties.
8 Clues: an interaction that holds atoms together. • electrons on the outermost energy level of an atom that determine the reactivity of the atom. • horizontal row of elements on the Periodic Table that have the same number of electron shells. • states that matter is neither created nor destroyed in ordinary chemical and physical changes. • ...
Unit 6b vocabulary 2017-03-20
Across
- States that matter is neither created nor destroyed in ordinary chemical and physical changes
- electrons on the outermost layer of an Adam that term in the reactivity of the Atom
- A chemical reaction in which he is released and usually feels warm when the heat is released from the reaction
- horizontal row of elements on the periodic table that have the same number of electrons shells
Down
- A chemical reaction in which heat is released and usually feels warm for when the heat is released from the reaction
- vertical column of elements on the periodic table that have similar physical and chemical properties
- elements that have some properties of metals and nonmetals and are found along zigzag parts on the periodic table
- A interaction that holds Adams together
8 Clues: A interaction that holds Adams together • electrons on the outermost layer of an Adam that term in the reactivity of the Atom • States that matter is neither created nor destroyed in ordinary chemical and physical changes • horizontal row of elements on the periodic table that have the same number of electrons shells • ...
Science Review Vocab 2022-10-27
Across
- is a substance that is formed as the result of a chemical reaction
- the substance's mass per unit of volume
- happens when one chemical substance is transformed into one or more different substances
- a substance that takes part in and undergoes change during a reaction.
- occurs when objects or substances undergo a change that does not change their chemical composition.
Down
- a characteristic of a particular substance that can be observed in a chemical reaction
- a principle stating that mass cannot be created or destroyed.
- causes (a substance) to be deposited in solid form from a solution
8 Clues: the substance's mass per unit of volume • a principle stating that mass cannot be created or destroyed. • is a substance that is formed as the result of a chemical reaction • causes (a substance) to be deposited in solid form from a solution • a substance that takes part in and undergoes change during a reaction. • ...
Conservation of Mass Crossword Puzzle 2021-03-01
Across
- Atoms are ______ in a chemical reaction.
- Mass is neither created nor ________.
- Both sides of an equation must be _______.
- Two or more reactants, one product.
- Proposed conservation of mass law.
Down
- Anything that has mass or takes up space.
- Element or compound after the reaction.
- One reactant, two or more products.
- Element or compound before the reaction.
- The arrow in a reaction is read as _______.
10 Clues: Proposed conservation of mass law. • One reactant, two or more products. • Two or more reactants, one product. • Mass is neither created nor ________. • Element or compound after the reaction. • Atoms are ______ in a chemical reaction. • Element or compound before the reaction. • Anything that has mass or takes up space. • Both sides of an equation must be _______. • ...
Chemistry and more! 2025-07-03
Across
- attracted to the elections in the nucleus
- the total number of protons and neutrons in an atomic nucleus.
- process that leads to the chemical transformation of one set of chemical substances to another.
- a unit of measurement that denotes an amount of substance
- the smallest unit of matter
- The rarest natural occurring element
- a substance with a specific composition
- pure chemical substance composed of more than one element
- chemical compound with the chemical formula CH4
- the scientific study of life and living organisms
Down
- small, dense region consisting of protons and neutrons at the center of an atom
- a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents.
- said to have first made the atom theory
- attracted to the protons in the nucleus
- word used to describe energy coming from a heat source
- an ancient branch of natural philosophy, a philosophical and protoscientific tradition
16 Clues: the smallest unit of matter • The rarest natural occurring element • said to have first made the atom theory • attracted to the protons in the nucleus • a substance with a specific composition • attracted to the elections in the nucleus • chemical compound with the chemical formula CH4 • the scientific study of life and living organisms • ...
Chemistry Crossword 2016-04-05
Across
- Ionic compound composed of a cation and the anion from an acid.
- Is the energy required to break a chemical bond and form neutral isolated atoms.
- An equation in which the reactants and products in a chemical reaction are represented by words.
- Volume x Density
- A negative ion.
- A neutral group of atoms that are held together by covalent bonds.
- Number of protons in that element.
- Hydrochloric acid
- Indicates the relative number of atoms of each kind in a chemical compound by using atomic symbols and numerical subscripts.
- A chemical reaction in which the products reform the reactants.
- Pure substance made only of one type of atom.
- The distance between two bonded atoms at their minimum potential energy, that is, the average distance between two bonded atoms .
- A solid that is produced as a result of a chemical reaction in a solution and that seperates from the solution.
- A small whole number that appears in front of a formula in a chemical equation.
- Compounds composed of two different elements.
- A chemical compound whose simplest units are molecules.
- Sodium hydroxide
- Study of the composition, structure, and properties.
- Polyatomic ions that contain oxygen
- Same element that has different masses.
- Atom or group of banded atoms that have a positive or negative charge.
- Measure of gravitational pull towards matter.
- General term for any isotope of any element.
- (%)(atomic mass) = Xamu
- Vertical columns on a periodic table, 1-18.
- Ions formed from a single atom.
- Nitric acid
- Sum of the average atomic masses of all the atoms represented in its formula.
- Tetra
- Mass divided by volume
- Any process that results in the formation of an ion.
Down
- A + B → AB
- Mass of the mole of a pure substance.
- Naming system
- Horizontal rows of elements in the periodic table.
- Di
- A positive ion.
- The electrons to be lost or gained, or shared in the formation of chemical compounds.
- AX + BY → AY BX
- A testable statement.
- Mass %’s divided by total molar mass, all multiplied by 100
- Amount of a substance that contains as many particles as atoms.
- Hydrobromic acid
- Is a specific portion of matter in a given region of space that has been selected for a study during an experiment.
- A measure of the ability of an atom in a chemical compound to attract electrons.
- Smallest unit of an element that maintains properties of that element.
- A testable statement.
- Refers to the closeness of a set of measurements of the same quantity made in the same way.
- Anything that has mass, and takes up space.
- 1/12 the mass of a carbon 12 atom.
- Hexa
- Penta
- Lithium hydroxide
- Deca
- Meaning that they have an uneven distribution of charge.
55 Clues: Di • Hexa • Deca • Penta • Tetra • A + B → AB • Nitric acid • Naming system • A positive ion. • A negative ion. • AX + BY → AY BX • Volume x Density • Hydrobromic acid • Sodium hydroxide • Hydrochloric acid • Lithium hydroxide • A testable statement. • A testable statement. • Mass divided by volume • (%)(atomic mass) = Xamu • Ions formed from a single atom. • Number of protons in that element. • ...
Science Vocab 2023-11-13
Across
- 2 or more atoms joined together, these can be the same or different types of atoms
- Consists of only one type of atom,and cannot be broken down into smaller substances
- A tiny piece of matter too small to be seen
- A substance that cannot be broken down by microorganisms
- A chain of linked molecules made up of groups of repeating atoms
- A substance that can be broken down bye microorganisms
- A chemical change that occurs when two or more substances combine to make a new substance
- Arrangement of the parts of something such as the stem of a plant or the atoms in a molecule
Down
- the way the parts of an atom are put together
- The process of rearranging small molecules to form larger repeating chains of molecules call polymers
- Any subtance made by human from a chemical reaction to for new materials
- A ratio between 2 sets of measurements
- A characteristic of a material that depends on the type and the arrangement of the atoms
- The smallest unit of a chemical element
- A long chain of sometimes thousands of molecules
- A substance that has a constant proportion and arrangement
- A material or substance found in nature and used by humans to meet a need
17 Clues: A ratio between 2 sets of measurements • The smallest unit of a chemical element • A tiny piece of matter too small to be seen • the way the parts of an atom are put together • A long chain of sometimes thousands of molecules • A substance that can be broken down bye microorganisms • A substance that cannot be broken down by microorganisms • ...
Unit 6 key words 2022-05-17
Across
- plant organ which transports water, minerals, and nutrients to different parts of the plant
- a product from a reaction that is not required by the organism, and sometimes harmful
- a substance that is produced as a result of a chemical reaction
- plant organ that absorbs water and minerals from the soil and anchors the plant
- a gas in the atmosphere; one of the reactants of photosynthesis.
- a gas in the atmosphere; one of the products of photosynthesis.
Down
- one of the reactants of photosynthesis; required for all life to survive
- reproductive organ of a plant. Bright coloured petals, strong smells and nectar attract insects to act as pollinators
- a substance that takes part in and undergoes change during a chemical reaction
- a sugar made by photosynthesis (one of the products); also one of the reactants of respiration
- the process by which green plants and certain other organisms transform light energy into chemical energy.
- plant organ where photosynthesis and gas exchange occur
12 Clues: plant organ where photosynthesis and gas exchange occur • a substance that is produced as a result of a chemical reaction • a gas in the atmosphere; one of the products of photosynthesis. • a gas in the atmosphere; one of the reactants of photosynthesis. • one of the reactants of photosynthesis; required for all life to survive • ...
Chapter 6 2021-09-18
Across
- when the inhibitor competes with the substrate by binding to the enzyme first
- something that increases the rate of a chemical reaction
- potential energy in chemical bonds
- energy cannot be created or destroyed
- when energy is stored up
- organic molecule/inorganic ion that is required to enhance enzyme activity
- the site where an enzyme can bind on a substrate
- available energy
- when energy is released
- stored energy
- all the chemical reactions that take place within the cell
Down
- high unstable energy
- inhibition by a binding event that stops the enzyme from binding to the substrate
- suppression of the activity of an enzyme
- movement energy
- energy made by cell respiration, cell's energy currency
- a temporary molecule formed when a substrate binds with an enzyme
- when energy is transferred, some is lost
- thermal energy, energy that is passed from one system to another
- putting molecules together
- a substance that acts as a catalyst for reactions in living things
- a specific series of reactions that begins with reactants and ends with products
- energy needed to start a reaction
- amount of randomness or disorder in a system
- the fit between an enzyme and a substrate the happens as they change shape to fit together
- breaking molecules down
- when an enzyme loses its shape due to environmental changes
27 Clues: stored energy • movement energy • available energy • high unstable energy • when energy is released • breaking molecules down • when energy is stored up • putting molecules together • energy needed to start a reaction • potential energy in chemical bonds • energy cannot be created or destroyed • suppression of the activity of an enzyme • when energy is transferred, some is lost • ...
Chemical Reactions 2024-01-17
Across
- to form a solution by mixing evenly
- smallest parts that make up matter
- Change A change that occurs when one or more substances change into entirely new substances with different properties.
- particles vibrate, move, and slide past each other.
- how much space an object or substance takes up (its volume) in relation to the amount of matter in that object or substance (its mass)
- evidence; information gathered from observations
- the substances you start with in a chemical reaction.
- incapable of being dissolved
- A group of atoms bonded together
- the steps taken to investigate a fair test.
- particles do not move around.
- able to dissolve
- of conservation of mass Matter is neither created nor destroyed
- something that repeats itself and can be predicted.
Down
- A combination of two or more substances that are not chemically combined
- The particles are close together.
- how liquids flow differently
- system A system in which no matter is allowed to enter or leave
- color,odor, density, melting point, viscosity, solubility
- Change a change of matter from one form to another without a change in chemical properties
- the amount of matter in an object
- system matter can enter from or escape to the surroundings
- characteristics of substances that don't change
- The particles are tightly packed.
- the new substance that forms in a chemical reaction
- Particles are well separated with no regular arrangement. Particles move freely at high speeds.
- point The temperature at which a solid becomes a liquid
27 Clues: able to dissolve • how liquids flow differently • incapable of being dissolved • particles do not move around. • A group of atoms bonded together • The particles are close together. • the amount of matter in an object • The particles are tightly packed. • smallest parts that make up matter • to form a solution by mixing evenly • the steps taken to investigate a fair test. • ...
Cellular 2021-11-01
Across
- bond a chemical bond linking a phosphate group to anthother part
- respiration process that produces energy
- process that does not require oxygen
- inner mitochondrial
Down
- breakdown of carbohydrates
- reaction in which molecules broken into two
- process that requires oxygen
- transport series of reactions in the membrane
- cycle reaction in a membrane that transfer electrons from on chemical to another
- acid product of fermentation in many types of cells
10 Clues: inner mitochondrial • breakdown of carbohydrates • process that requires oxygen • process that does not require oxygen • respiration process that produces energy • reaction in which molecules broken into two • transport series of reactions in the membrane • acid product of fermentation in many types of cells • ...
Energy Notes 2022-02-25
Across
- does not allow energy to go through them easily
- the ability to cause change
- chemical reaction exerting energy
- stored energy that can move
- chemical reaction taking in energy
Down
- energy in motion
- the transfer of heat through contact
- type of energy source that gets replenished by the earth
- type of energy source that does not get replenished by the earth
- the transfer of heat through hot air rising
10 Clues: energy in motion • the ability to cause change • stored energy that can move • chemical reaction exerting energy • chemical reaction taking in energy • the transfer of heat through contact • the transfer of heat through hot air rising • does not allow energy to go through them easily • type of energy source that gets replenished by the earth • ...
Combustion and Flame 2023-08-23
Across
- Magnesium ribbon on burning in air produces
- supporter of combustion
- type of combustion firecracker
- The substance expected to have the highest ignition temperature
- chemical reaction that produce heat
Down
- main product of incomplete combustion
- temperature at which substance catches fire
- 35 c is ignition temperature of
- a substance that increases the rate of a chemical reaction without getting used
- The substance that does not burn with flame is
10 Clues: supporter of combustion • type of combustion firecracker • 35 c is ignition temperature of • chemical reaction that produce heat • main product of incomplete combustion • temperature at which substance catches fire • Magnesium ribbon on burning in air produces • The substance that does not burn with flame is • ...
Chemisty Holiday Homework 2022-06-02
Across
- this reaction likes to do oxidation and reduction both!
- releases heat after the reaction occurs!
- do this and your equation is ready!
- 2 or more reactants results in 1 product!
Down
- what reaction do you call it when one element takes place of another?
- what is it when hydrogen is removed or oxygen is added?
- right side of a chemical equation!
- music speeds up your homework, but what speeds up a chemical reaction?
8 Clues: right side of a chemical equation! • do this and your equation is ready! • releases heat after the reaction occurs! • 2 or more reactants results in 1 product! • this reaction likes to do oxidation and reduction both! • what is it when hydrogen is removed or oxygen is added? • what reaction do you call it when one element takes place of another? • ...
Photosynthesis vocabulary 2026-02-19
Across
- A green pigment that allows the plant to absorb sunlight.
- Chemical formula for Oxygen
- What is needed for a reaction to take place.
- The organelles where photosynthesis takes place and is only found in plant cells.
Down
- Chemical formula for water
- The process where plants make food in the form of sugar and produce oxygen.
- Substances that are formed in a chemical reaction.
- a vital vascular tissue in plants responsible for transporting water and dissolved minerals upward from the roots to the stems and leaves
- Chemical formula for Carbon Dioxide
9 Clues: Chemical formula for water • Chemical formula for Oxygen • Chemical formula for Carbon Dioxide • What is needed for a reaction to take place. • Substances that are formed in a chemical reaction. • A green pigment that allows the plant to absorb sunlight. • The process where plants make food in the form of sugar and produce oxygen. • ...
Bio chemical processes ch 6 2021-09-07
Across
- area where enzyme bind to substrate
- energy required to initiate endergonic reaction
- a measure of disorder or randomness in a system
- the study of energy transformation
- inorganic molecules that enzymes need to function properly
Down
- hypothesis stating any given enzyme only catalyze some specific reaction
- amount of energy available to perform work ina system
- enzymes’ property of speeding up endergonic reaction
- organic molecules that enzymes need to function properly
- the molecule an enzyme binds to
- large energy coupling proteins that lower activation energy in endergonic reactions
- a set of connected components that transfer energy
- reactions which release more energy than they absorb
- molecule that provides energy for cell
- a chemical reaction that absorbs more energy than it releases
- metabolic process stores energy or synthesizes molecules
- metabolic process releases energy or breaks molecules apart
17 Clues: the molecule an enzyme binds to • the study of energy transformation • area where enzyme bind to substrate • molecule that provides energy for cell • energy required to initiate endergonic reaction • a measure of disorder or randomness in a system • a set of connected components that transfer energy • enzymes’ property of speeding up endergonic reaction • ...
enzyme 2026-03-04
Across
- the sum of all the chemical reactions occurring in that cell.
- reaction that absorbs free energy from the surroundings.
- The energy required to start any reaction
- describes the active site as having a set shape.
- the process of breaking down large molecules into smaller ones.
- the process of making large molecules from smaller ones.
- released after catalyzed reaction
Down
- describes a flexible active site that changes shape, or conforms, to the substrate as they bond together
- organic cofactors
- reaction that has a net release of free energy.
- inhibit the activity of enzymes
- substrates in a catalysed reaction
12 Clues: organic cofactors • inhibit the activity of enzymes • released after catalyzed reaction • substrates in a catalysed reaction • The energy required to start any reaction • reaction that has a net release of free energy. • describes the active site as having a set shape. • reaction that absorbs free energy from the surroundings. • ...
Unit 6 and 7 Chem. Terms 2022-06-15
Across
- Calculate this percentage to find how close your yeid prediction was
- A reactant that is used up by the end if the experiment
- Set this up to complete your stoichiometry calculation
- The real amount of product created at the end of the reaction
- The total mass of a compound in a reaction
- Tells you how many moles of each reactant and product there are
- Studies the amounts of substances that are involved in chemical reaction
Down
- Tells you how the amount of atoms within a compound
- A predicted amount of product at the end of a reaction
- Substance produced at the end of a reaction
- A reactant that is leftover at the end of the experiment
- An equation must be this before proceeding in any calculations
- Use this when converting between particles and moles
- Use this ratio to convert between moles
- A counting unit invented by chemists to count atoms in groups
15 Clues: Use this ratio to convert between moles • The total mass of a compound in a reaction • Substance produced at the end of a reaction • Tells you how the amount of atoms within a compound • Use this when converting between particles and moles • A predicted amount of product at the end of a reaction • Set this up to complete your stoichiometry calculation • ...
Chemical Energy 2016-10-13
Across
- Contains only one type of atom
- Used in a power station for the generation of electricity
- New material formed in a chemical reaction
- Natural fuel formed in the geological past from the remains of a living organism
- Heat being obtained
- An insoluble solid that emerges from a liquid solution
- synonym: power
- Heat being released
- The process of which organisms use sunlight to synthesise nutrients from carbon and water
- An ____ is a atom that has unequal parts electron and proton
- 2x Hydrogen and 1x Oxygen Compound
- Mixture of different elements, to make something else
- Mixture composed of two or more substances
- A ________ is made up of protons and neutrons
- a substance that takes part in change during a reaction
Down
- Rapid combination of a substance with oxygen
- A substance that is produced/used in a process, involves changes to atoms and ions
- A compound of Hydro and Carbon
- Chemical decomposition produced by passing a electric current
- ____________ can be used to purify water or other substances
- A chemical compound that conducts electricity. e.g. sodium chloride
- Gold element
- The rate in which heat passes through a specified material
- A proton emits a ________ charge
- Negative charge
- An __________ substance is a solid that will not dissolve in a solvent
- Neutral charge
- Latent qualities that my lead to future success or unusefulness
- The smallest particles we know
29 Clues: Gold element • synonym: power • Neutral charge • Negative charge • Heat being obtained • Heat being released • Contains only one type of atom • A compound of Hydro and Carbon • The smallest particles we know • A proton emits a ________ charge • 2x Hydrogen and 1x Oxygen Compound • New material formed in a chemical reaction • Mixture composed of two or more substances • ...
Vocabulary Crossword 2012-02-17
Across
- An element that is not metal.
- A substance formed by a chemical reaction. A product is made by the rearrangement of atoms.
- the total number of protons and neutrons in an atoms nucleus.
- The average mass of the atoms in an element.
- An element that has proprites of metals and non metals.
- A Horizontal row in the Peroidic table of elements.
- Likely to undergo a chemical change.
- A property of matter Representing the mass per unit volume.
- A particle that has no electric charge and is located in an atoms nucleus.
- A substance that can not be broken down into a simplier Substance by an ordinary chemical change.
Down
- A vertical column in the Period table.
- A substance made of two or more diffrents types of atoms bonded together.
- The smallest part of an element that has the chemical propetites of that element.
- A solid substance that forms as a result of a reaction between chemicals in two liquids.
- An atom or group of atoms that has a positive or negative electrical charge.
- An atom or group of atoms that has a positive or negative eletric charge.
- A combination of two or more diffrent substances that do not chemmicaly combine but remain the same indivual substances.
- A negative charged particle located outside an atoms nucleus.
- A postivley charged particle In the nucleus.
- A element that tends to be shiny, easly shaped, and a good conductor of heat and electricty.
20 Clues: An element that is not metal. • Likely to undergo a chemical change. • A vertical column in the Period table. • The average mass of the atoms in an element. • A postivley charged particle In the nucleus. • A Horizontal row in the Peroidic table of elements. • An element that has proprites of metals and non metals. • ...
Cells and Metabolism 2022-02-24
Across
- chemical reactions that break down large organic molecules into smaller ones, with the release of energy
- a small membrane-bound cavity in the cytoplasm of a cell
- muscle that is not under our conscious control
- a molecule upon which an enzyme acts
- all chemical reactions occurring in a living organism
- a lipid molecule that contains a phosphate group
- the site of cellular respiration
- the energy required to get a chemical reaction started
- the diffusion of water molecules through a semi-permeable membrane
- a nerve cell
Down
- the process by which a cell surrounds and takes in solid particles
- a membrane that forms the external boundary of a celll
- tissue providing support for body organs
- tissue that forms the outer part of the skin and lines hollow organs
- a protein that increases the speed of chemical reactions
- the ions or inorganic molecules required by enzymes to catalyse a reaction
- a group of cells that are similar in structure and function
- large organic molecules made up of fatty acids and glycerol
- the transport of materials into or out of a cell in membrane-bound sacs
- a difference in concentration of a solution
- a molecule that stores energy in cells
- the series of reactions that occur in the mitochondria during aerobic respiration; another name for the krebs cycle
- a protein that allows ions, water and small molecules to pass through the cell membrane
- an enzyme that breaks down fats
24 Clues: a nerve cell • an enzyme that breaks down fats • the site of cellular respiration • a molecule upon which an enzyme acts • a molecule that stores energy in cells • tissue providing support for body organs • a difference in concentration of a solution • muscle that is not under our conscious control • a lipid molecule that contains a phosphate group • ...
Biology Q2 Review 2024-12-17
Across
- Negatively charged particle in a cloud around the nucleus
- A protein that speeds up or slows down a chemical reaction
- The smallest particle of an element that retains all of its properties
- This enzyme is present in potatoes and can be broken down by hydrogen peroxide
- Atomic number of Magnesium (write the number as a word)
- Iodine turns purple in the presence of starch. It is known as an ____
- Positively charged particle in the nucleus
- When a solute spreads out in a solution
- Anything that has volume and mass
- The attraction between different substances, such as water and a penny
- This part of the cell allows materials to pass in and out
- These are the right side of a chemical equation
Down
- Substance that cannot be broken down into simpler substances
- Chemical reactions that release energy in the form of heat
- The center of an atom. Also an organelle in Eukaryotic cells.
- The solvent moves across a membrane from an area of low concentration to an area of high concentration
- An atom with different masses due to more or less neutrons
- _______ tension is the property of a liquid that allows you to create a dome of water on a penny
- The attraction between two of the same molecules
- These are the ingredients in a chemical reaction
- An atom with a charge due to an imbalance of protons and electrons
- Neutral particle in the nucleus.
22 Clues: Neutral particle in the nucleus. • Anything that has volume and mass • When a solute spreads out in a solution • Positively charged particle in the nucleus • These are the right side of a chemical equation • The attraction between two of the same molecules • These are the ingredients in a chemical reaction • Atomic number of Magnesium (write the number as a word) • ...
Elements and Compounds 2025-02-09
Across
- minerals rich in metals such as copper and iron; the pure metal can be extracted from the ore
- a simple chemical equation where chemicals are represented by their names
- evaporation of solvent from a solution to leave solute behind as crystals
- Describes elements that consists of a single atom
- The smallest building blocks of matter
- a substance that dissolves another substance
- any chemical reaction where a substance burns in oxygen to produce light and heat Corrosion: when a metal reacts
- a simplified representation of solids, liquids and gases
- a mixture in which one substance is dissolved in another
- Shiny
- an increase in size
Down
- A substance being dissolved
- describes a substance that can chemically dissolve other substances
- the chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the Sun
- The characteristics of a substance
- an electrical switch used in computers to process data quickly
- a process where two liquids or two gases mix due to the motion of their particles
- the substance found in plant leaves that make leaves green and collects energy from the Sun for photosynthesis
- the first chemical explosive; made up of a mixture of saltpeter, sulfur and carbon
- a change of state where a gas is cooled and forms a liquid
- an alloy of copper and tin that is much harder than pure copper
- a change of state
- any combination of two or more elements and compounds
23 Clues: Shiny • a change of state • an increase in size • A substance being dissolved • The characteristics of a substance • The smallest building blocks of matter • a substance that dissolves another substance • Describes elements that consists of a single atom • any combination of two or more elements and compounds • a simplified representation of solids, liquids and gases • ...
Chemistry 2020-06-04
Across
- temperature scale temperature scale where 0°C and 100°C are defined as the freezing and boiling points of water, respectively.
- is force per area.
- A substance which is made up of loads of small molecules joined together.
- metal is an element belonging to Group II of the periodic table. Examples of alkaline earth metals are magnesium and calcium.
- is any organic molecule that has a -COH group.
- A horizontal row of elements in the periodic table.
- is a molecule that contains a R-CO-R' functional group. An example of a common ketone is acetone (dimethyl ketone).
- describes a process that absorbs heat. Endothermic reactions feel cold.
- describes a process that gives off heat.
- group functional group consisting of a carbon double bonded to oxygen and single bonded to a hydroxyl (-COOH).
- is a group of elements sharing similar properties. It is not necessarily the same thing as an element group. For example, the chalcogens or oxygen family consists of some different elements from the nonmetal group.
- solid in which atoms are bonded to other atoms of the same type.
- rare earth metal with element symbol Ce and atomic number 58.
- is a possible value of energy that an electron can have in an atom.
- is a property of a physical object that quantifies the amount of matter it contains.
- law that states the properties of elements recur in a predictable and systematic way when they are arranged by increasing atomic number.
- is an ionic compound that dissolves in water to produce ions, which can conduct electricity. Strong electrolytes completely dissociate in water, while weak electrolytes only partially dissociate or break apart in water.
- binding of an element to itself via covalent bonds, forming a chain or ring
- number - the number of protons in the nucleus of an atom of an element.
- volume occupied by one mole of an element at room temperature.
- is how repeatable a measurement is. More precise measurements are reported with more significant figures.
- electrode where reduction occurs; usually the negative electrode.
- The substance which adds oxygen to another substance.
- is something made as a result of a chemical reaction.
- is a unit of temperature. A Kelvin is equal in size to a degree Celsius, although Kelvin starts from absolute zero. Add 273.15 to a Celsius temperature to get the Kelvin value. Kelvin is not reported with a ° symbol. For example, you would simply write 300K not 300°K.
- tube a vacuum tube with a source of electrons, a fluorescent screen, and means of accelerating and deflecting the electron beam.
Down
- is the name for the element with atomic number 55 and is represented by the symbol Cs. It is a member of the alkali metal group.
- The chemical reaction combining monomers to form polymers.
- functional group consisting of a carbon atom double bonded to oxygen, C=O.
- tabular arrangement of elements by increasing atomic number, ordered according to trends in recurring properties.
- ion with a positive electrical charge.
- is the acronym for the molecule adenosine triphosphate.
- is when a titration is stopped, typically because an indicator has changed color. The endpoint need not be the same as the equivalence point of a titration.
- an ion consisting of one carbon bonded to three oxygen atoms (CO32-) or a compound containing this ion.
- A scale which shows how acidic or alkaline a substance is.
- horizontal row of the periodic table; elements with the same highest unexcited electron energy level.
- value used to describe the size of an atom, usually half the distance between two atoms just touching each other.
- anaylysis A method of finding out the elements present in an unknown substance via a series of chemical tests.
- Loss of electrons in a chemical reaction.
- surrounding gases, such as the gases surrounding a planet that are held in place by gravity.
- is using electricity to break the bonds in a compound to break it apart.
- is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity
- parts per million
- are molecules that are non superimposable mirror images of each other.
- is the property of matter which reflects the quantity of energy of motion of the component particles.
- The arrangement of elements in the order of increasing atomic number in a table.
- is a metal in Group I of the periodic table. Examples of alkali metals include lithium, sodium, and potassium.
- substance that increases the chemical reaction rate by decreasing its activation energy.
- parts per billion
- average mass of atoms of an element.
- is any organic molecule that has an -OH group.
- A charged particle found in the nucleus of an atom.
- is energy of motion. The more an object moves, the more kinetic energy it has.
- reaction - An addition reaction is a chemical reaction in which atoms add to a carbon-carbon multiple bond.
54 Clues: parts per million • parts per billion • is force per area. • average mass of atoms of an element. • ion with a positive electrical charge. • describes a process that gives off heat. • Loss of electrons in a chemical reaction. • is any organic molecule that has a -COH group. • is any organic molecule that has an -OH group. • A horizontal row of elements in the periodic table. • ...
Simple Chemical Reactions 2023-08-23
Across
- Won’t dissolve
- Changing from a gas to a liquid.
- When a substance burns in oxygen.
- Changing from a liquid to a gas.
- A substance that will dissolve.
Down
- A type of mixture, where a solute dissolves in a solvent (liquid).
- Changing from a liquid to a solid.
- The solid which dissolves to make a solution.
- When a solid completely mixes with a liquid.
- The liquid that dissolves a solute. Water is a solvent for salt.
- The new substances which are created in a chemical reaction.
- Changing from a solid to a liquid.
- The chemicals which react together in a chemical reaction.
13 Clues: Won’t dissolve • A substance that will dissolve. • Changing from a gas to a liquid. • Changing from a liquid to a gas. • When a substance burns in oxygen. • Changing from a liquid to a solid. • Changing from a solid to a liquid. • When a solid completely mixes with a liquid. • The solid which dissolves to make a solution. • ...
Malaki, Waves, 3 2025-05-06
Across
- Results in a proton and electron
- Results in a positron and neutron
- The result of a chemical reaction
- The child with Afro-like hair
- Atoms that have either lost or gained neutrons
- An electron with a positive charge. Result of beta decay
- The atoms involved in starting a chemical reaction
Down
- Consists of one neutron and one proton
- When two atoms form to make one
- When a neutron turns U-235 into U-236
- Results in a particle that consists of 2 protons and neutrons
- The energy released from an atom during gamma decay
- Consists of 2 neutrons and one proton
13 Clues: The child with Afro-like hair • When two atoms form to make one • Results in a proton and electron • Results in a positron and neutron • The result of a chemical reaction • When a neutron turns U-235 into U-236 • Consists of 2 neutrons and one proton • Consists of one neutron and one proton • Atoms that have either lost or gained neutrons • ...
Chapter 14 Vocabulary 2024-11-09
Across
- when in doubt, always convert to ____
- formula that shows the lowest relative number (simplest ratio) of atoms of each element in a compound
- the amount of product actually obtained from a chemical reaction
- the measure of the efficiency of a reaction
- a technique to find the empirical or molecular formula of a compound using amounts of C and H in the products versus reactants
- substance that is consumed or "used up first" in a chemical reaction; determines the amount of product that can be formed
Down
- the maximum amount of product that can form using the limiting reactant (calculated with stoichiometry)
- a technique to find the empirical or molecular formula of a compound using percent composition of mass
- formula that shows the actual number of atoms of each element in a molecule
- to begin a stoichiometry problem, write a _____ chemical equation
- the mass of one mole of a substance (g/mol)
11 Clues: when in doubt, always convert to ____ • the measure of the efficiency of a reaction • the mass of one mole of a substance (g/mol) • the amount of product actually obtained from a chemical reaction • to begin a stoichiometry problem, write a _____ chemical equation • formula that shows the actual number of atoms of each element in a molecule • ...
Puzzle 2021-05-02
Across
- Renewable
- Sun’s radiation
- Combination of kinetic and potential
- Harnesses the power of water in motion
- Only form of energy seen by the human eye
- Released during fission or fusion
- to Heat, Kettle
- Stretched, compressed or deformed
- Generated or produced by living dead organisms
Down
- to light, Bulbs
- Vibration of an object/substance
- Heat within the earth
- Intertwines with nuclear energy
- Sustainable energy
- Stored energy
- to chemical, Absorbed by plants for nutrition
- to light, Combustion reaction
17 Clues: Renewable • Stored energy • to light, Bulbs • Sun’s radiation • to Heat, Kettle • Sustainable energy • Heat within the earth • to light, Combustion reaction • Intertwines with nuclear energy • Vibration of an object/substance • Released during fission or fusion • Stretched, compressed or deformed • Combination of kinetic and potential • Harnesses the power of water in motion • ...
Regulation 2024-04-03
Across
- controls thinking, memory and voluntary activity
- hormone releases during stress
- enlargement of thyroid caused by iron deficiency
- controls involuntary, like breathing and heartbeat
- organ that releases insulin
- chemical secreted from neuron
- hormone that lowers blood sugar
Down
- hormone responsible for male characteristics
- controls balance
- glands release adrenaline
- type of protein that secretes chemical messages
- hormone responsible for female characteristics
- gland responsible for controlling metabolism
- change in environment
- reaction to stimulus
- cell neuron
16 Clues: cell neuron • controls balance • reaction to stimulus • change in environment • glands release adrenaline • organ that releases insulin • chemical secreted from neuron • hormone releases during stress • hormone that lowers blood sugar • hormone responsible for male characteristics • gland responsible for controlling metabolism • hormone responsible for female characteristics • ...
Biology Extra Credit Crossword Puzzle 2023-09-14
Across
- when the product of a reaction leads to an increase in that reaction
- a property of molecules that do not mix with water.
- they allow the entry of only a few substances
- when concentration of two solutions is equal
- molecules that can interact with water.
- a solution with higher osmotic pressure than another solution.
- the chemical processes that occur within a living organism in order to maintain life
- a chemical or physical change in the environment that triggers some sort of the behavioral change in a living organism.
- the movement of materials across the cell membrane without using cellular energy
- thin flex able barrier that controls what goes in and out of a cell
Down
- the net movement of molecules from an area of greater concentration to an area of lesser concentration.
- normal biological response in which the effects of a reaction slow or stop that reaction
- keeping the balance
- process of diffusion in which molecules pass across the membrane through a cell membrane channel
- the movement of materials against a concentration differance
- proteins or glycoproteins that receive signals by binding to signaling molecules
- diffusion of water through a selectively permeable membrane
- a solution containing a lower amount of solute in comparison to the solute concentration in other solutions, across a semipermeable membrane
- the behavior that is manifested by a living organism which is the result of an external or internal stimulus
- a part of the body which can respond to a stimulus according to the instructions sent from the nervous system
20 Clues: keeping the balance • molecules that can interact with water. • when concentration of two solutions is equal • they allow the entry of only a few substances • a property of molecules that do not mix with water. • diffusion of water through a selectively permeable membrane • the movement of materials against a concentration differance • ...
Phtosynthesis 2023-02-16
13 Clues: Gas • Blue • Sugar • Green • Sunlight • Membranes • Breathe in • Calvin Cycle • Liquidy Part • molecule split • 3 phosphate groups • Needed to make Glucose • Speed Up Chemical Reaction
Chemical Bonding 2022-01-27
10 Clues: neutral charge • positive charge • negative charge • bond two nonmetals • electrons ionic bond • bond metal and nonmetal • electrons covalent bond • reaction when chemical bonds give off heat • group of atoms help together by chemical bonds • bonds links between atoms determining their identity
Carbon and the Earth 2023-02-02
Across
- All water on Earth
- A pyramid that show the amount present at each trophic level in a given area
- The sum of all the life on Earth
- The movement of substances that involves Earth’s physical features
- primary molecule used by cells to store chemical energy
- The portion of the Earth system that includes Earth’s interior
- A gas found in Earth's atmosphere produced by animals during respiration or during burning
- The ending substance, written on the right side of the chemical reaction arrow
- An organism that obtains its energy from an abiotic source
- The process by which cells convert chemical energy
- An element that is an essential building block of organic compounds
Down
- An organism’s position on a food chain
- The whole mass of air surrounding Earth
- the process of decaying
- A biomolecule that is used as a primary energy source and structural support
- A monosaccharide sugar
- The process of captured light energy to convert carbon dioxide and water
- The conversion of inorganic carbon to organic molecule
- A substance composed of multiple elements combined in fixed proportions
- One of the primary substances that make up matter
- Containing the element carbon
- The starting substance, written on the left side of the chemical reaction arrow
- Organisms such as bacteria and fungi that break down the remains
- The continuous movement of carbon in and among the abiotic environment and living things
- Matter that does not contain carbon
25 Clues: All water on Earth • A monosaccharide sugar • the process of decaying • Containing the element carbon • The sum of all the life on Earth • Matter that does not contain carbon • An organism’s position on a food chain • The whole mass of air surrounding Earth • One of the primary substances that make up matter • The process by which cells convert chemical energy • ...
Cells and Metabolism 2022-02-24
Across
- the series of reactions that occur in the mitochondria during aerobic respiration; another name for the krebs cycle
- muscle that is not under our conscious control
- a protein that increases the speed of chemical reactions
- the site of cellular respiration
- the energy required to get a chemical reaction started
- an enzyme that breaks down fats
- the transport of materials into or out of a cell in membrane-bound sacs
- a nerve cell
- tissue that forms the outer part of the skin and lines hollow organs
- the process by which a cell surrounds and takes in solid particles
- a group of cells that are similar in structure and function
- a lipid molecule that contains a phosphate group
Down
- a difference in concentration of a solution
- a molecule that stores energy in cells
- a molecule upon which an enzyme acts
- all chemical reactions occurring in a living organism
- a protein that allows ions, water and small molecules to pass through the cell membrane
- tissue providing support for body organs
- chemical reactions that break down large organic molecules into smaller ones, with the release of energy
- a membrane that forms the external boundary of a celll
- a small membrane-bound cavity in the cytoplasm of a cell
- the diffusion of water molecules through a semi-permeable membrane
- the ions or inorganic molecules required by enzymes to catalyse a reaction
23 Clues: a nerve cell • an enzyme that breaks down fats • the site of cellular respiration • a molecule upon which an enzyme acts • a molecule that stores energy in cells • tissue providing support for body organs • a difference in concentration of a solution • muscle that is not under our conscious control • a lipid molecule that contains a phosphate group • ...
Elements and Compounds 2025-02-09
Across
- minerals rich in metals such as copper and iron; the pure metal can be extracted from the ore
- a simple chemical equation where chemicals are represented by their names
- evaporation of solvent from a solution to leave solute behind as crystals
- Describes elements that consists of a single atom
- The smallest building blocks of matter
- a substance that dissolves another substance
- any chemical reaction where a substance burns in oxygen to produce light and heat Corrosion: when a metal reacts
- a simplified representation of solids, liquids and gases
- a mixture in which one substance is dissolved in another
- Shiny
- an increase in size
Down
- A substance being dissolved
- describes a substance that can chemically dissolve other substances
- the chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the Sun
- The characteristics of a substance
- an electrical switch used in computers to process data quickly
- a process where two liquids or two gases mix due to the motion of their particles
- the substance found in plant leaves that make leaves green and collects energy from the Sun for photosynthesis
- the first chemical explosive; made up of a mixture of saltpeter, sulfur and carbon
- a change of state where a gas is cooled and forms a liquid
- an alloy of copper and tin that is much harder than pure copper
- a change of state
- any combination of two or more elements and compounds
23 Clues: Shiny • a change of state • an increase in size • A substance being dissolved • The characteristics of a substance • The smallest building blocks of matter • a substance that dissolves another substance • Describes elements that consists of a single atom • any combination of two or more elements and compounds • a simplified representation of solids, liquids and gases • ...
Elements and Compounds 2025-02-09
Across
- minerals rich in metals such as copper and iron; the pure metal can be extracted from the ore
- a simple chemical equation where chemicals are represented by their names
- evaporation of solvent from a solution to leave solute behind as crystals
- Describes elements that consists of a single atom
- The smallest building blocks of matter
- a substance that dissolves another substance
- any chemical reaction where a substance burns in oxygen to produce light and heat Corrosion: when a metal reacts
- a simplified representation of solids, liquids and gases
- a mixture in which one substance is dissolved in another
- Shiny
- an increase in size
Down
- A substance being dissolved
- describes a substance that can chemically dissolve other substances
- the chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the Sun
- The characteristics of a substance
- an electrical switch used in computers to process data quickly
- a process where two liquids or two gases mix due to the motion of their particles
- the substance found in plant leaves that make leaves green and collects energy from the Sun for photosynthesis
- the first chemical explosive; made up of a mixture of saltpeter, sulfur and carbon
- a change of state where a gas is cooled and forms a liquid
- an alloy of copper and tin that is much harder than pure copper
- a change of state
- any combination of two or more elements and compounds
23 Clues: Shiny • a change of state • an increase in size • A substance being dissolved • The characteristics of a substance • The smallest building blocks of matter • a substance that dissolves another substance • Describes elements that consists of a single atom • any combination of two or more elements and compounds • a simplified representation of solids, liquids and gases • ...
Unit 1 Review JC 2022-12-08
Across
- Tendancy of water to rise in a thin tube
- A pure substance that consists of one type of atom
- Splitting a compound with the addition of water
- Dissolves other material/Solute
- Chemical reaction resulting from losing water molecules
- Used for source of energy
- When there is an uneven distribution of electrons in a water molecule
- A material composed of two ore more elements that are physically mixed together not chemically.
- Holds and Measures solutions/reactions.
- The variable being measured.
- When two or more different types of atoms are chemically bonded.
- the material being dissolved
- The process of breaking down larger molecules for smaller molecules
- The process of creating large molecules from smaler molecules
- Holds and contains energy
- located around the Nucleus and is a negatively charged subatomic particle
Down
- Transmits and stores genetic information and material
- large molecule made up from small molecules
- Attraction of molecules of a different subastance
- Chemical reactions that absorb energy
- Broken down to glucose and ATP
- The variable that remains constant.
- The basic unit of life.
- Positvely charged subatomic particle
- A(Blank) is used to transfer and pick up small amounts of liquid.
- The variable being changed.
- Chemical reactions that release energy
- Attraction of molecules of the same substance
- Controls enzymes/reactions
- Holds solutionss and reactions.
- A substance on which an enzyme acts during a chemical reaction.
- Nuetrally charged subatomic particle
32 Clues: The basic unit of life. • Used for source of energy • Holds and contains energy • Controls enzymes/reactions • The variable being changed. • The variable being measured. • the material being dissolved • Broken down to glucose and ATP • Dissolves other material/Solute • Holds solutionss and reactions. • The variable that remains constant. • Positvely charged subatomic particle • ...
Unit 2 choice board puzzle 2022-09-21
Across
- The steps in photosynthesis that occur on the thylakoid membranes of the chloroplast and that convert solar energy to the chemical energy of ATP and NADPH, evolving oxygen in the process.
- A mixture of gases that surrounds a planet or moon.
- second stage of cellular respiration
- Series of electron carrier proteins that shuttle high energy electrons during ATP-generating reactions
- Ending materials in a chemical reaction.
- Process by which cells release energy in the absence of oxygen
- Process that does not require oxygen
- A starting material in a chemical reaction
Down
- Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.
- The solid part of the earth consisting of the crust and outer mantle
- Anything that has mass and takes up space
- microorganisms break down sugars to form carbon dioxide and ethanol
- product of fermentation in many types of cells, including human muscle cells.
- end product of glycolysis
- The chemical element of atomic number 6
- process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high energy carbohydrates such as sugars and starches
- Capture energy from sunlight and use it to produce food for the cell. (only in plants)
- form of sugar that circulates through blood
- energy carrying coenzyme
- All the water at and near the surface of the earth, 97% of which is in oceans
- molecules that stores energy
21 Clues: energy carrying coenzyme • end product of glycolysis • molecules that stores energy • second stage of cellular respiration • Process that does not require oxygen • The chemical element of atomic number 6 • Ending materials in a chemical reaction. • Anything that has mass and takes up space • A starting material in a chemical reaction • ...
CHEMISTRY CROSSWORD 2025-05-21
Across
- – Region around an atom’s nucleus where electrons are found
- – Number in front of a formula that tells you how many molecules
- – Bond where atoms share electrons
- – How strongly an atom attracts electrons in a bond
- – Two or more atoms joined together
- – Process that makes glucose using sunlight
- – Process that breaks down glucose to release energy
- – The column number in the periodic table, same as the number of outer electrons
- – Ice melting is an example of this kind of change
Down
- – Substance made of only one type of atom
- – Triangle used to find mass, moles or relative formula mass (4,8)
- – Substance made from two or more elements chemically bonded
- – Combustion is an example of this kind of change
- – Bond formed between metals and non-metals by electron transfer
- – Metal with a relative atomic mass of 24 g/mol
- – Constant equal to the number of particles in one mole (9,6)
- – Smallest particle of an element that still keeps its properties
- – Unit that counts particles in chemistry, like a chemist’s dozen
- – Substances you end up with in a chemical reaction
- – A set of chemical symbols that shows what atoms are in a substance
- – The row number in the periodic table, same as the number of shells
- – Number written small and low to show how many atoms in a molecule
- – Substances you start with in a chemical reaction
- – What atoms do with electrons in a covalent bond
24 Clues: – Bond where atoms share electrons • – Two or more atoms joined together • – Substance made of only one type of atom • – Process that makes glucose using sunlight • – Metal with a relative atomic mass of 24 g/mol • – Combustion is an example of this kind of change • – What atoms do with electrons in a covalent bond • – Substances you start with in a chemical reaction • ...
vocabulary 2020-11-27
Across
- a simple sugar which is important energy source
- a substance produced by a living organism
- a molecule produced by plants
- the elements of compounds produced by a chemical reaction
- A molecule that carries energy within cells
- organelles within eukaryotic cells
Down
- mechanism that can function without air
- enzymatic breakdown of a carbohydrate
- important molecule that is present at the intersection
- the elements or compounds that enter into a chemical reaction
10 Clues: a molecule produced by plants • organelles within eukaryotic cells • enzymatic breakdown of a carbohydrate • mechanism that can function without air • a substance produced by a living organism • A molecule that carries energy within cells • a simple sugar which is important energy source • important molecule that is present at the intersection • ...
Photosynthisis 2021-03-25
Across
- a green pigment in plants
- carbon_______
- the organelle where photosynthesis takes place
- lets gases in and out of the leaf
- what is needed for a reaction to take place
Down
- helps plants deliver water and nutrients to the entire plant.
- pigment that absorbs the suns energy
- substances formed in a chemical reaction
- type of energy radiant energy is turned into during photosynthesis
- energy that comes from the sun
10 Clues: carbon_______ • a green pigment in plants • energy that comes from the sun • lets gases in and out of the leaf • pigment that absorbs the suns energy • substances formed in a chemical reaction • what is needed for a reaction to take place • the organelle where photosynthesis takes place • helps plants deliver water and nutrients to the entire plant. • ...
Cellular Energy Crossword 2025-12-05
Across
- Light turns into energy through this
- Starting materials that change in a chemical reaction
- What all living things need to survive
- The main energy carrying molecule in cells
- Split version of glucose
- What is this
Down
- Cycle that converts carbon dioxide into glucose
- An organelle found in cells responsible for energy production
- Substances formed at the end of a chemical reaction
- Enzyme that acts as an electron character
10 Clues: What is this • Split version of glucose • Light turns into energy through this • What all living things need to survive • Enzyme that acts as an electron character • The main energy carrying molecule in cells • Cycle that converts carbon dioxide into glucose • Substances formed at the end of a chemical reaction • Starting materials that change in a chemical reaction • ...
Photosynthisis 2021-03-25
Across
- substances formed in a chemical reaction
- carbon_______
- the organelle where photosynthesis takes place
- energy that comes from the sun
- pigment that absorbs the suns energy
- helps plants deliver water and nutrients to the entire plant.
Down
- type of energy radiant energy is turned into during photosynthesis
- what is needed for a reaction to take place
- lets gases in and out of the leaf
- a green pigment in plants
10 Clues: carbon_______ • a green pigment in plants • energy that comes from the sun • lets gases in and out of the leaf • pigment that absorbs the suns energy • substances formed in a chemical reaction • what is needed for a reaction to take place • the organelle where photosynthesis takes place • helps plants deliver water and nutrients to the entire plant. • ...
Photosynthesis & Cellular Respiration 2025-12-09
Across
- chain that passes electrons to make ATP
- organelle where photosynthesis happens
- substances made at the end of a chemical reaction
- energy “currency” molecule of the cell
- the process plants use to turn sunlight into energy
Down
- breaks down glucose to release energy
- starting materials in a chemical reaction
- simple sugar that stores energy
- electron carrier used in the Calvin cycle
- fluid-filled space inside a chloroplast
10 Clues: simple sugar that stores energy • breaks down glucose to release energy • organelle where photosynthesis happens • energy “currency” molecule of the cell • chain that passes electrons to make ATP • fluid-filled space inside a chloroplast • starting materials in a chemical reaction • electron carrier used in the Calvin cycle • ...
Matter Vocab 2025-09-12
Across
- A mixture in which composition is not uniform throughout
- Also known as a chemical reaction, this is a process where a substance transforms into one or more new substances
- A characteristic of a substance that can be identified without changing the substance
- Has a firm and stable shape; not liquid/fluid
- A homogeneous mixture of one or more solutes dissolved in a solvent
- A substance that flows freely, but is of consistent volume, having a consistency like that of water or oil
- This contains different elements chemically combined in a fixed ratio\
- A fluid's resistance to flow; often referred to as the thickness of fluid
Down
- A combination of substances that are evenly distributed, resulting in a uniform composition
- A pure chemical substance made of the same type of atom
- This describes how a substance changes into a different substance during a chemical reaction
- A type of matter that contains only one kind of particle chemically bonded in a fixed proportion
- The process of forming crystals
- A state of matter with no fixed shape or volume
- A change in a substance's form or appearance, but not its chemical identity
- The ability to be dissolved, especially in water
- The degree of compactness of a substance
17 Clues: The process of forming crystals • The degree of compactness of a substance • Has a firm and stable shape; not liquid/fluid • A state of matter with no fixed shape or volume • The ability to be dissolved, especially in water • A pure chemical substance made of the same type of atom • A mixture in which composition is not uniform throughout • ...
Conservation of Mass Crossword Puzzle 2021-03-01
Across
- Atoms are ______ in a chemical reaction.
- Mass is neither created nor ________.
- Both sides of an equation must be _______.
- Two or more reactants, one product.
- Proposed conservation of mass law.
Down
- Anything that has mass or takes up space.
- Element or compound after the reaction.
- One reactant, two or more products.
- Element or compound before the reaction.
- The arrow in a reaction is read as _______.
10 Clues: Proposed conservation of mass law. • One reactant, two or more products. • Two or more reactants, one product. • Mass is neither created nor ________. • Element or compound after the reaction. • Atoms are ______ in a chemical reaction. • Element or compound before the reaction. • Anything that has mass or takes up space. • Both sides of an equation must be _______. • ...
The Working Cell 2012-10-25
Across
- type of reaction where the end products have more energy than than the reactants did
- type of diffusion where membrane proteins assist the movement of the molecule across the membrane
- type of solution where the amount of dissolved solute is the same on the inside of the cell, as outside the cell
- type of transport across plasma membrane that requires no energy
- type of transport across plasma membrane that requires proteins and ATP
- rate of a reaction is proportional to enzyme ______________
- is selectively permeable and regulates transport of molecules in and out of cell
- type of transport the moves liquids or small particles into a cell
- sum of all chemical reactions in a cell
- type of transport that moves macromolecules out of the cell
- capacity or ability to do work
- measure of disorder or randomness
Down
- used to control metabolic pathways, where product competes for the active site of an enzyme earlier in the pathway
- energy of ____________ is the amount of energy that reactants must absorb in order to start a chemical reaction
- type of diffusion where molecules move down their concentration gradient until equilibrium is achieved and they are distributed equally. no energy or membrane required
- likely the first organic molecule to form on Earth
- a non-protein component that many enzymes require to to be efficient
- too high or too low __________________ may denature or inactivate an enzyme
- reactant in an enzymatic reaction
- globular proteins that are organic catalysts, efficient at their job, and not degraded upon job completion
20 Clues: capacity or ability to do work • reactant in an enzymatic reaction • measure of disorder or randomness • sum of all chemical reactions in a cell • likely the first organic molecule to form on Earth • rate of a reaction is proportional to enzyme ______________ • type of transport that moves macromolecules out of the cell • ...
Crossword Vocab Review - 8.P1U1.2 & 8.P1U1.1 2023-08-26
Across
- the ability to dissolve in another substance.
- the transition of a substance directly from a solid state to a gas state
- describes it's reactivity
- the process that changes liquid water to gaseous water (water vapor)
- a particle kind of matter w/ uniform properties
Down
- the ability to be pulled into a thin strand, like a wire.
- when one or more physical properties of a substance are changed
- the level of acid in substance
- change that interacts to form new products
- temperature at which a substance changes from a liquid to a gaseous state
- compound or element that is the result of a chemical reaction
- matter that has no definite volume of shape, such as air
12 Clues: describes it's reactivity • the level of acid in substance • change that interacts to form new products • the ability to dissolve in another substance. • a particle kind of matter w/ uniform properties • matter that has no definite volume of shape, such as air • the ability to be pulled into a thin strand, like a wire. • ...
Thermochemistry crossword 2023-04-28
Across
- Process of measuring the amount of heat released or absorbed through a chemical reaction
- Accompanied by or requiring the absorption of heat
- Unit of work or energy equal to the work done by 1N when it’s point of application moves 1 m in the direction of action of the force
- Heat absorbed when a liquid vaporizes
- Energy that is transferred from one body to another as the result of difference in temperature
- The heat required to raise the temperature of the unit mass of a given amount
- Unit of temperature on a scale based on 0° for the freezing of water, and 100° for the boiling point of water
- The process where heat is transmitted directly through a substance or collision of neighboring molecules
Down
- Accompanied by the release of heat
- The end result of a chemical reaction
- Heat transfer through the emission of energy as electromagnetic waves
- Energy which a body possesses by virtue of being in motion
- Heat required to melt a solid
- A branch of chemistry dealing with the quantities of heat evolved or absorbed during chemical reactions
- A substance that takes part and undergoes change during a reaction
- SI unit of thermodynamic temperature
- A unit of energy equal to the heat energy needed to raise the temperature of 1 g of water by 1°C
- The movement cause within a fluid by hotter and less dense material rising and colder, denser material sinking, leading to heat transfer
- Energy contained within a system that is responsible for its temperature
19 Clues: Heat required to melt a solid • Accompanied by the release of heat • SI unit of thermodynamic temperature • The end result of a chemical reaction • Heat absorbed when a liquid vaporizes • Accompanied by or requiring the absorption of heat • Energy which a body possesses by virtue of being in motion • A substance that takes part and undergoes change during a reaction • ...
Bio II Ch 2 vocab crossword 2020-09-24
Across
- A substance containing two or more elements in a fixed ratio
- Thermal energy; the amount of energy associated with the movement of the atoms and molecules in a body of matter
- A measure of the intensity of heat in degrees
- The binding together of like molecules, often by hydrogen bonds
- Anything that occupies space and has mass
- The attraction between different kinds of molecules
- The dissolving agent of a solution
- A substance that is dissolved in a solution
- An atom that has gained or lost one or more electrons, thus acquiring a charge
Down
- An ending material in a chemical reaction
- A starting material in a chemical reaction
- An electrically neutral particle
- A substance that decreases the hydrogen ion (H) concentration in a solution
- A subatomic particle with a single positive electrical charge, found in the nucleus of an atom
- A group of two or more atoms held together by covalent bonds
- A substance that increases the hydrogen ion concentration in a solution
- A subatomic particle with a single negative electrical charge
- A chemical substance that resists changes in pH by accepting hydrogen ions from or donating hydrogen ions to solutions
- A compound resulting from the formation of ionic bonds
- A substance that cannot be broken down to other substances by chemical means
- A liquid consisting of a homogeneous mixture of two or more substances
- The small unit of matter that retains the properties of an element
22 Clues: An electrically neutral particle • The dissolving agent of a solution • An ending material in a chemical reaction • Anything that occupies space and has mass • A starting material in a chemical reaction • A substance that is dissolved in a solution • A measure of the intensity of heat in degrees • The attraction between different kinds of molecules • ...
Cell Energy Vocabulary 2014-12-31
Across
- Without oxygen
- Pigment that gives a chloroplast its green color;uses light energy to split water molecules during photosynthesis
- reaction The phase of photosynthesis not requiring light, in which carbohydrates are synthesized from carbon dioxide
- -Heme,-hemat-
- The complex process in which carbon dioxide, water and certain inorganic salts are converted into carbohydrates using energy from the sun and chlorophyll
- -Arth-
- respiration Chemical process that uses oxygen to convert chemical energy stored in organic molecules into ATP
- -Cyan-,azul-
- cycle Stage of cellular respiration that finishes the breakdown of pyruvic acid molecules
- Organism that makes its own food
- digest -Peps-,-pept-
- Thick fluid contained in the inner membrane of a chloroplast
- reaction Chemical reactions that convert the sun's energy to chemical energy; takes place in the membranes of thylakoids in the cholroplast
Down
- Cellular organelles where cellular respiration occurs
- -Rrhea-,-Rrh-,-Rheo
- The splitting in half of a glucose molecule; the first stage of cellular respiration and fermentation
- Organelle found in some plant cells and certain unicellular organisms where photosynthesis takes place
- Main energy source that cells use for most of their work
- Cellular process of making ATP without oxygen
- Organism that obtains food by eating other organisms
- Disk-shaped sacs in the stroma of a chloroplast in vascular plants---stack of thylakoids
- breathe -Pneu-,-pneum-
- -Ped,-pod,-pus
- acid A water-soluble liquid produced during muscle contraction as a product of anaerobic glucose metabolism
- -Arith
- -Chlor,verd
26 Clues: -Arth- • -Arith • -Chlor,verd • -Cyan-,azul- • -Heme,-hemat- • Without oxygen • -Ped,-pod,-pus • -Rrhea-,-Rrh-,-Rheo • digest -Peps-,-pept- • breathe -Pneu-,-pneum- • Organism that makes its own food • Cellular process of making ATP without oxygen • Organism that obtains food by eating other organisms • Cellular organelles where cellular respiration occurs • ...
Science Grade 7 Vocabulary 2022-09-15
Across
- the amount of a substance that can be dissolved at a specified temperature
- a matter or material
- a colorless, odorless, and highly flammable greenhouse gas composed of carbon and hydrogen
- a distinct form in which matter can exist
- the process of a substance transforming into a different substance
- incapable of dissolving
- the result of an action or process
- a colorless, odorless, tasteless gas that is the most plentiful element in Earth's atmosphere and is a constituent of all living matter.
- a chemical element found in the air as a colorless tasteless gas that is necessary for life.
- to break into smaller components
- a substance made by mixing other substances
Down
- capable of dissolving
- resistance of a fluid (liquid or gas) to a change in shape, or movement of neighboring portions relative to one another
- a particle that makes up all matter
- a colorless, odorless, tasteless, flammable, gaseous substance that is the simplest member of the family of chemical elements
- when matter changes to another state
- the ability to ignite easily
- any process that involves a chemical reaction
- an attribute or characteristic of something
- a substance that takes part in and changes in a chemical reaction
- the mass of a substance per unit volume
- a colorless, odorless gas produced by burning carbon and organic compounds and by respiration.
- a smell
- a group of atoms bonded together
24 Clues: a smell • a matter or material • capable of dissolving • incapable of dissolving • the ability to ignite easily • a group of atoms bonded together • to break into smaller components • the result of an action or process • a particle that makes up all matter • when matter changes to another state • the mass of a substance per unit volume • a distinct form in which matter can exist • ...
Grade 8 Integrated - Vocabulary exercise Unit 1&2 2023-10-16
Across
- the types and amounts of food consumed by an individual
- essential nutrients for growth and repair of body tissues
- a type of tissue that transports water and nutrients in plants
- epidermis, the outer layer of cells on the lower surface of leaves
- a simple carbohydrate that provides quick energy
- inorganic substances essential for bodily functions
- layer, a protective layer on the surface of leaves
- small openings on the surface of leaves
- reaction, a process that leads to the transformation of one set of chemical substances to another
- layer, a layer of cells containing chloroplasts in the interior of leaves
- a source of energy for the body
Down
- a vascular bundle in a leaf
- a vital component of all body tissues and functions
- epidermis, the outer layer of cells on the upper surface of leaves
- proteins that speed up chemical reactions in the body
- a green pigment in plants
- organic compounds necessary for normal growth and development
- a type of carbohydrate that aids in digestion
- diet, a diet that includes all necessary nutrients in proper proportions
- disease, a condition caused by a lack of essential nutrients
- a complex carbohydrate found in plants
- a substance that increases the rate of a chemical reaction without being consumed
- layer, a layer of loosely packed cells in the interior of leaves
- a nutrient that provides energy and helps with nutrient absorption
24 Clues: a green pigment in plants • a vascular bundle in a leaf • a source of energy for the body • a complex carbohydrate found in plants • small openings on the surface of leaves • a type of carbohydrate that aids in digestion • a simple carbohydrate that provides quick energy • layer, a protective layer on the surface of leaves • ...
Topical Crosswords series: Physics - Energy 2024-05-21
Across
- Ratio of useful energy output to total energy input
- Manipulation of matter on an atomic, molecular, and supramolecular scale
- Unit of energy often used in food
- Basic unit of a chemical element, central in energy changes in reactions
- Amount of matter in an object, often a factor in potential energy
- Material that resists energy transfer
- Reaction that releases energy
- Reaction that absorbs energy
- Energy stored in bonds of molecules
- Energy transfer through electromagnetic waves
- Study of heat and energy transfer
- Energy stored due to position
- Movement of energy from one place or object to another
Down
- Heat transfer through fluid movement
- SI unit of energy
- Form of energy transfer between bodies due to temperature difference
- Heat transfer through direct contact
- Force that attracts two bodies toward each other, related to potential energy
- Measure of the average kinetic energy of particles
- Quantum of electromagnetic radiation
- Force that opposes motion and converts kinetic energy to thermal energy
- Substance that provides energy as a result of a chemical change
- Energy due to motion or position
- Energy transfer when a force is applied over a distance
- Rate of energy transfer
- Energy of motion
- Total heat content of a system
- Device that converts chemical energy into electrical energy
- Type of energy harnessed from the sun
- A set of interacting components considered to be a distinct physical entity for study
30 Clues: Energy of motion • SI unit of energy • Rate of energy transfer • Reaction that absorbs energy • Reaction that releases energy • Energy stored due to position • Total heat content of a system • Energy due to motion or position • Unit of energy often used in food • Study of heat and energy transfer • Energy stored in bonds of molecules • Heat transfer through fluid movement • ...
Chem Mat Review + Chem Rxns Intro 2025-02-25
Across
- also called, “chemical reaction”, is when one substance is transformed into another substance through a chemical reaction.
- The act of giving up one benefit in order to gain another, greater benefit
- property A characteristic of a pure substance that describes its ability to change into different substances
- The amount of matter in an object
- property A characteristic of a pure substance that can be observed without changing it into another substance
- The energy an object has due to its motion
- the energy contained within a system that is responsible for its temperature
- The temperature at which a solid becomes a liquid
- How compact the particles of a substance are in a space
- The amount of space an object takes up
Down
- A physical property that describes matter as a solid, liquid, or gas.
- Collected data from observations Mat and experiments
- Basic unit of matter
- A material's ability to burn in the presence of oxygen
- also called “thermal energy”; always flows from high to low.
- Characteristic used to describe something
- Anything that has mass and takes up space
- The temperature at which a liquid changes to a gas
- A substance made up of atoms of two or more different elements joined by chemical bonds
- A pure substance made of only one kind of atom
- Two or more atoms bonded together
- a representation of an object or event that can be studied to understand the real object or event
22 Clues: Basic unit of matter • The amount of matter in an object • Two or more atoms bonded together • The amount of space an object takes up • Characteristic used to describe something • Anything that has mass and takes up space • The energy an object has due to its motion • A pure substance made of only one kind of atom • The temperature at which a solid becomes a liquid • ...
Unit 3 Vocab- Colton 2025-09-11
Across
- notation of a compounds elements and ratios
- bond between two opposite charged ions
- attraction between a metal cation and the shared electrons around it
- material that allows heat and electricity to pass through it
- the force that holds atoms or ions together
- a number In Front of a chemical equation that indicates ratios
- a material that does not allow heat or electrons move through it easy
- elements depicted by,shine, malleability and conductivity
- elements that are poor conductors of heat and electrical current
- a mixture of two or more elements at least one of which is a metal
- symbols to show the relationship between the reactants and the product
Down
- group of atoms that are joined together by covalent bonds
- bond in which two atoms share valence electrons
- law stating matter cannot be created nor destroyed yet stuck in a everlasting cycle
- ion with positive charge
- any compound that forms hydrogen ions with a pH of 7 or above
- covalent bond but electrons aren't shared evenly
- A chemical substance that is present at the END of a chemical reaction
- substance that is present at the START of a chemical reaction.
- atom with net charge
- element classified in group 18, no charge, don't bond.
- ion with negative charge
- a compound that produces hydrogen with a pH below 7
- element with the properties of both metals and non metals
- group of bonded ions with a net charge
25 Clues: atom with net charge • ion with positive charge • ion with negative charge • bond between two opposite charged ions • group of bonded ions with a net charge • notation of a compounds elements and ratios • the force that holds atoms or ions together • bond in which two atoms share valence electrons • covalent bond but electrons aren't shared evenly • ...
Photosynthesis Crossword 2022-04-15
Across
- The result of a chemical reaction like photosynthesis
- The things that have a chemical reaction occur
- The part of the plant that distributes water
- Process that plants use to create food
Down
- The organelle that can only be found in plants
- Exchanges carbon dioxide and oxygen through plants
- Energy that comes from the sun
- The place where photosynthesis occurs
- Carries glucose through the plants
- The pigment that makes plants green
10 Clues: Energy that comes from the sun • Carries glucose through the plants • The pigment that makes plants green • The place where photosynthesis occurs • Process that plants use to create food • The part of the plant that distributes water • The organelle that can only be found in plants • The things that have a chemical reaction occur • ...
Challenge It! Photosynthesis Labs 2023-01-31
Across
- pigment that makes plants green
- what is needed for a chemical reaction to happen
- the thing gases go through to get in and out of a plant
- a process used to make food for autotrophs
Down
- where the food is made in photosynthesis
- transports water to the leaves
- the product of photosynthesis made for food
- sunlight
- what is made in a chemical reaction
- transports glucose throughout the plant
10 Clues: sunlight • transports water to the leaves • pigment that makes plants green • what is made in a chemical reaction • transports glucose throughout the plant • where the food is made in photosynthesis • a process used to make food for autotrophs • the product of photosynthesis made for food • what is needed for a chemical reaction to happen • ...
Combustion 2021-05-13
Across
- what does hydrogen gas form when combusted
- An element common in all combustion reactions
- true or false batteries are also oxidation reactions
- Is combustion a physical or chemical reaction
- A reaction which releases heat
Down
- Produced from the oxidation of iron
- Another name for combustion
- A compound consisting of oxygen and one other element
- Combustion is an example of...
- True or false humans breathe because their body require oxidation reactions for energy
- C6H12O6+ xO2-> 6CO2 + 6H2O What is the value of x?
11 Clues: Another name for combustion • Combustion is an example of... • A reaction which releases heat • Produced from the oxidation of iron • what does hydrogen gas form when combusted • An element common in all combustion reactions • Is combustion a physical or chemical reaction • C6H12O6+ xO2-> 6CO2 + 6H2O What is the value of x? • ...
STANDARD 7D 2021-08-05
Across
- substances taking part in a chemical reaction
- smallest particle of an element.
- the insoluble solid formed in a chemical reaction when two solutions are mixed.
- number of protons and neutrons are together called.
Down
- the symbol is Na,
- subatomic particle without any charge.
- the metal whose symbol is Ca
- horizontal rows in the periodic family
- combining capacity of elements
- family to which chlorine, bromine and iodine belong
10 Clues: the symbol is Na, • the metal whose symbol is Ca • combining capacity of elements • smallest particle of an element. • subatomic particle without any charge. • horizontal rows in the periodic family • substances taking part in a chemical reaction • family to which chlorine, bromine and iodine belong • number of protons and neutrons are together called. • ...
Natural science 2022-08-19
Across
- a chemical reaction that happens in some living things, such as yeast and bacteria
- the force of attraction exerted by magnets
- another word for a homogeneous mixture
- a connecting wire, usually made of copper, wrappedin plastic covering.
- a chemical reaction that happens when some metal substances such as iron combine with oxygen in the presence of water
Down
- a device with a magnetic needle that always points north. We use it to orient ourselves
- a method used to separate substances of different density in heterogeneous mixtures.
- a chemical reaction that happens when objects or substances are burned
- a material which does not allow electrical charges to move
9 Clues: another word for a homogeneous mixture • the force of attraction exerted by magnets • a material which does not allow electrical charges to move • a chemical reaction that happens when objects or substances are burned • a connecting wire, usually made of copper, wrappedin plastic covering. • ...
Week 3 Packet- Tommy Do 2015-07-06
Across
- A CH compound reacts with oxygen to make CO2 and H2O.
- Two separate atoms come together to form one compound.
- One element in a pair is replaced by another.
- _____________ states that matter cannot be created or destroyed.
- We represent the amount of each reactant and product with _________.
- Something that enters into the reaction.
Down
- The opposite of above-one compound breaks into its parts.
- Activation energy is the __________ amount of energy the reactant particles must have in order for a reaction to occur.
- Two element pairs "switch partners."
- An acid and base come together to make water and salt.
- The rate of a chemical reaction is a measure of change in concentration per __________.
- Something that is produced by the reaction.
- A process in which one or more substances are converted into new substances.
- Everything that enters a reaction must come out of the reaction, however the ___________ of the substance might be changed.
- The man who calculated the number 6.022x10^23 who was an Italian chemist and physicist.
15 Clues: Two element pairs "switch partners." • Something that enters into the reaction. • Something that is produced by the reaction. • One element in a pair is replaced by another. • A CH compound reacts with oxygen to make CO2 and H2O. • An acid and base come together to make water and salt. • Two separate atoms come together to form one compound. • ...
Chemistry Crossword 2013-07-16
Across
- Firm and hard object
- A substance made by mixing other substances together.
- The basic unit of a chemical element.
- A substance produced by a living organism
- A substance that changes during a reaction.
- A substance produced during a natural, chemical,
- A solid that is hard andshiny
Down
- Airlike substance
- Consistency like that of water
- table A table of the chemical elements arranged in order of atomic number
- A part or aspect of something
- A thing that represents or stands for something else
- A set of chemical symbols
13 Clues: Airlike substance • Firm and hard object • A set of chemical symbols • A part or aspect of something • A solid that is hard andshiny • Consistency like that of water • The basic unit of a chemical element. • A substance produced by a living organism • A substance that changes during a reaction. • A substance produced during a natural, chemical, • ...
Equilibria 2016-08-04
Across
- meaning of Kc
- some of the reactants and/or products in an equilibrium reaction are in different phases
- [ ] represents the equilibrium _________ in mol dm-3
- an equilibrium reaction involving reactants and products which are in the same phase
- increasing temperature decreases yield in an __________ reaction
Down
- its effect of the position of equilibrium is dependent upon the number of moles of gas
- _________ equilibrium occurs when the rate of the forward reaction and backwards reaction are equal
- altering this quantity will change the Kc value for a particular reaction
- used for the reactants and products when a chemical reaction involves just gases
- total pressure of a system is equal to the ____ of the partial pressures of each of the gases
- a principle which concerns the effect of changing conditions on the position of equilibrium
- Reactants or products can't enter of leave
- how position of equilibrium is changed by the addition of a catalyst
- A reactant or product which has a (g) in a symbol equation
14 Clues: meaning of Kc • Reactants or products can't enter of leave • [ ] represents the equilibrium _________ in mol dm-3 • A reactant or product which has a (g) in a symbol equation • increasing temperature decreases yield in an __________ reaction • how position of equilibrium is changed by the addition of a catalyst • ...
Revision 2020-02-12
Across
- The build up of toxic chemicals inside organisms in a food chain.
- Chemical reaction where glucose reacts with oxygen to release energy.
- Chemical reaction used by microorganisms (to make bread.
Down
- The process plants use to make their own food.
- The number of plants or animals of the same type that live in the same area.
- Chemical reaction which releases energy and takes place without oxygen.
- The way in which living organisms depend on each other.
- Molecule which produces energy, we get it from digested food.
8 Clues: The process plants use to make their own food. • The way in which living organisms depend on each other. • Chemical reaction used by microorganisms (to make bread. • Molecule which produces energy, we get it from digested food. • The build up of toxic chemicals inside organisms in a food chain. • ...
Chemical Reactions Vocabulary 2022-10-26
Across
- a reaction where the energy is absorbed
- a system in which matter can enter from or escape into its surroundings
- a system in which no matter is allowed to enter or leave
- the substances that undergo chemical changes
Down
- a reaction where the energy is released
- a change in matter that produces one or more substances
- a change that alters the form or appearance of a substance without changing it into a different substance
- the substances formed through a chemical reaction
8 Clues: a reaction where the energy is absorbed • a reaction where the energy is released • the substances that undergo chemical changes • the substances formed through a chemical reaction • a change in matter that produces one or more substances • a system in which no matter is allowed to enter or leave • ...
Enzymes and Cellular Respiration 2022-11-06
Across
- the energy that cells in living organisms use to function
- enzymes which completely dictate how well a chemical reaction will do
- the extra piece needed for enzymes to function
Down
- energy required for a chemical reaction to start
- the area of the enzyme where the substrate can bond to the enzyme
- the chemical process which turns glucose and oxygen into ATP energy, carbon dioxide, and water
- a kind of catalyst which speeds up biochemical reactions
- how well the enzyme performs
- a substance which can speed up chemical reactions, without destroying itself
9 Clues: how well the enzyme performs • the extra piece needed for enzymes to function • energy required for a chemical reaction to start • a kind of catalyst which speeds up biochemical reactions • the energy that cells in living organisms use to function • the area of the enzyme where the substrate can bond to the enzyme • ...
Impossible Crossword Just Give Up 2022-04-04
Across
- The chemical reaction that synthesizes nutrients from carbon dioxide to water
- representation of solids, liquids and gases
- a microscope that can see atoms by scanning the surface of crystals and sensing the atoms bumping on the surface
- collects energy from the sun to make leaves green
- the term used to describe the structure of the DNA molecule
Down
- the reaction when limestone and marble reacts chemically
- solid to gas
- a simple chemical equation where chemicals are represented by their names
- evaporation of solvent from a solution to leave solute behind as crystals
- a form of sugar produced during photosynthesis
- long cables with a silica core that guides light signals from 1 end to the other
- a solid formed during a chemical change
12 Clues: solid to gas • a solid formed during a chemical change • representation of solids, liquids and gases • a form of sugar produced during photosynthesis • collects energy from the sun to make leaves green • the reaction when limestone and marble reacts chemically • the term used to describe the structure of the DNA molecule • ...
Chemistry Revision 2025-11-25
Across
- Mass ÷ volume =
- What the particle model has when it simplifies real particles.
- A large amount of solute in a solvent
- What is broken when a liquid turns to a gas
- A reaction that absorbs heat and breaks bonds.
- Solid → liquid.
- A change where no new substance is made.
- Liquid → solid.
Down
- Solid → gas.
- Gas → liquid.
- A state of matter with fixed shape, volume and the particles vibrate on the spot.
- A reaction that releases heat and forms bonds.
- The amount of space something takes up.
- A reaction that forms new substances.
- State of matter with no fixed shape or volume.
- Substance with more than one component making it a mixture.
- A substance made of only one type of particle.
17 Clues: Solid → gas. • Gas → liquid. • Mass ÷ volume = • Solid → liquid. • Liquid → solid. • A large amount of solute in a solvent • A reaction that forms new substances. • The amount of space something takes up. • A change where no new substance is made. • What is broken when a liquid turns to a gas • A reaction that releases heat and forms bonds. • ...
Scientific reading 2025-11-26
Across
- – A common plastic material.
- – To split into smaller parts.
- – Turning waste into new material.
- – DNA from many microbes mixed.
- – Stays stable when heated.
- – How clean something is.
Down
- – Place where trash is buried.
- rate – Speed of a chemical reaction.
- – Enzyme that breaks things using water.
- – Reused forever with no waste.
- – Smallest unit of a substance.
- – Molecule with genetic information.
- – Protein that speeds reactions.
- – Ability to stay unchanged.
- – Decayed plant or food matter.
15 Clues: – How clean something is. • – Stays stable when heated. • – A common plastic material. • – Ability to stay unchanged. • – Place where trash is buried. • – To split into smaller parts. • – Reused forever with no waste. • – Smallest unit of a substance. • – DNA from many microbes mixed. • – Decayed plant or food matter. • – Protein that speeds reactions. • ...
Ch 6&7 vocab 2024-04-02
Across
- bond - the force that holds cations and anions together
- a diagram of an atom, ion or molecule in which each dot represents a valence electron
- equation - a representation of a chemical reaction in which the reactants and products are expressed as formulas
- - a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal
- - numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
- - an ion with a positive charge
Down
- bond - a chemical bond in which two atoms share a pair of valence electrons
- - new substances formed as a result of a chemical reaction
- bond - the attraction between a metal cation and the shared electrons that surround it
- formula - notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
- bond - the force that holds atoms or ions together as a unit
- - an ion with a negative charge
- - a neutral group of atoms that are joined together by one or more covalent bonds
- - an atom or group of atoms that has a positive or negative charge
- - a substance that undergoes change in a chemical reaction
15 Clues: - an ion with a negative charge • - an ion with a positive charge • bond - the force that holds cations and anions together • - new substances formed as a result of a chemical reaction • - a substance that undergoes change in a chemical reaction • bond - the force that holds atoms or ions together as a unit • ...
Vocab Crossword 2019-08-23
Across
- Characteristics of a chemical.
- The force of attraction between two atoms which holds them together.
- Something you can touch.
- The process of a liquid forming into a solid
Down
- What represents the atoms in a compound?
- When a substance changes its physical form
- The energy absorbed or released during a change of phase
- The chemical process of forming new materials.
- The opposite of evaporation
- the process of a gas forming into a solid
- Two or more atoms combined.
- The process of a solid changing to a lquid
12 Clues: Something you can touch. • The opposite of evaporation • Two or more atoms combined. • Characteristics of a chemical. • What represents the atoms in a compound? • the process of a gas forming into a solid • When a substance changes its physical form • The process of a solid changing to a lquid • The process of a liquid forming into a solid • ...
Unit 6 and 7 Chem. Terms 2022-06-15
Across
- Calculate this percentage to find how close your prediction was
- A reactant that is used up by the end if the experiment
- Set this up to complete your stoichiometry calculation
- The real amount of product created at the end of the reaction
- The total mass of a compound in a reaction
- Tells you how many moles of each reactant and product there are
- Studies the amounts of substances that are involved in chemical reaction
Down
- Tells you how the amount of atoms within a compound
- A predicted amount of product at the end of a reaction
- Substance produced at the end of a reaction
- A reactant that is leftover at the end of the experiment
- An equation must be this before proceeding in any calculations
- Use this when converting between particles and moles
- Use this ratio to convert between moles
- A counting unit invented by chemists to count atoms in groups
15 Clues: Use this ratio to convert between moles • The total mass of a compound in a reaction • Substance produced at the end of a reaction • Tells you how the amount of atoms within a compound • Use this when converting between particles and moles • A predicted amount of product at the end of a reaction • Set this up to complete your stoichiometry calculation • ...
Unit 6 and 7 Chem. Terms 2022-06-15
Across
- Calculate this percentage to find how close your prediction was
- A reactant that is used up by the end if the experiment
- Set this up to complete your stoichiometry calculation
- The real amount of product created at the end of the reaction
- The total mass of a compound in a reaction
- Tells you how many moles of each reactant and product there are
- Studies the amounts of substances that are involved in chemical reaction
Down
- Tells you the amount of atoms within a compound
- A predicted amount of product at the end of a reaction
- Substance produced at the end of a reaction
- A reactant that is leftover at the end of the experiment
- An equation must be this before proceeding in any calculations
- Use this when converting between particles and moles
- Use this ratio to convert between moles
- A counting unit invented by chemists to count atoms in groups
15 Clues: Use this ratio to convert between moles • The total mass of a compound in a reaction • Substance produced at the end of a reaction • Tells you the amount of atoms within a compound • Use this when converting between particles and moles • A predicted amount of product at the end of a reaction • Set this up to complete your stoichiometry calculation • ...
Electrochemistry Vocab 2026-03-27
Across
- everyday term for voltaic cell
- electrode where reduction takes place
- gaining of electrons and the decreasing of an oxidation number
- electrochemical cell in which a spontaneous reaction causes the flow of electrons
- electrode where oxidation takes place
- general term for anode or cathode
- the total electric charge within an isolated system remains constant; charge can neither be created nor destroyed, only transferred
- number assigned to keep track of electron gain or loss in redox reactions
Down
- a cell that requires electricity to cause a nonspontaneous reaction
- reaction that shows either the oxidation or reduction in a chemical reaction
- part of a voltaic cell that connects the two containers and allows for that migration of ions
- process in which an electrical current forces a nonspontaneous redox reaction
- loss of electrons and the increasing of an oxidation number
- solution that conducts electricity due to the presence of mobile ions
- abbreviation for oxidation- reduction reactions
15 Clues: everyday term for voltaic cell • general term for anode or cathode • electrode where reduction takes place • electrode where oxidation takes place • abbreviation for oxidation- reduction reactions • loss of electrons and the increasing of an oxidation number • gaining of electrons and the decreasing of an oxidation number • ...
Fundamental Explosives Terminology for Training 2025-09-24
Across
- Lowest temperature at which a substance catches fire
- Shattering power of an explosion
- Burning that occurs below the speed of sound
- Burning or melting device to start a reaction
- Material that catches fire in air
- Beginning of an explosive reaction
- Chemical providing oxygen for burning
- Attracts water from the air
- Substance added to make explosives safer/more stable
Down
- Small explosive that increases another’s power
- Easily ignitable material to start fire
- Fast reaction with oxygen releasing heat and light
- Diameter Smallest size of explosive charge that detonates properly
- Small area in explosive that overheats and ignites
- Explosive Explodes with a shock wave
- Amount of empty space in a material
- Small device that sets off an explosive
17 Clues: Attracts water from the air • Shattering power of an explosion • Material that catches fire in air • Beginning of an explosive reaction • Amount of empty space in a material • Chemical providing oxygen for burning • Easily ignitable material to start fire • Explosive Explodes with a shock wave • Small device that sets off an explosive • ...
Marco 2.1 vocab 2021-10-26
8 Clues: a change in matter • a chemical reaction • a chemical reaction • a chemical reaction • material that has mass • a chemical change a process that changes substance • a substance that are formed during a chemical reaction • the substances present before a chemical reaction occurs
chemical reactions project 2023-11-17
Across
- a substance formed when two or more elements chemically combine in fixed proportions
- Element an element that naturally exists as molecules composed of two atoms bonded together
- Replacement Two reacting compounds switch their “partners”
- (or Combination)Two or more elements COMBINE to create ONE PRODUCT.
- when electrons are transferred from one atom to another, resulting in the formation of positive and negative ions.
- an electrically charged particle formed when an atom gains or loses electrons
- a substance that takes part in a chemical reaction, undergoing a change in composition.
- One reactant breaks down into multiple, simpler products
Down
- Any hydrocarbon (CxHy or CxHyOz) reacting with oxygen releases heat, carbon dioxide, and water
- A coefficient is a number placed in front of a chemical formula in a balanced chemical equation
- a small number written to the right and slightly below a chemical symbol. It indicates the number of atoms of an element in a molecule
- when atoms share electrons. It typically involves nonmetals.
- Replacement a singular element switches places with another element that is in a compound
- a substance that is formed as a result of a chemical reaction.
14 Clues: One reactant breaks down into multiple, simpler products • Replacement Two reacting compounds switch their “partners” • when atoms share electrons. It typically involves nonmetals. • a substance that is formed as a result of a chemical reaction. • (or Combination)Two or more elements COMBINE to create ONE PRODUCT. • ...
Random Puzzle 2025-03-10
Across
- A substance with a distinct molecular composition that is produced by or used in a chemical process.
- The basic structural and functional unit of all living organisms.
- The amount of matter in an object, typically measured in grams or kilograms.
- The process of burning something.
- Related to properties or changes in matter that do not alter its chemical composition.
- A solid that forms and settles out of a liquid mixture during a chemical reaction.
- A biological process in which organisms convert oxygen and glucose into energy, releasing carbon dioxide and water.
- A representation of an object, system, or concept used to explain and predict its behavior.
Down
- The process by which green plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose and oxygen.
- A thing or person that is the result of an action or process.
- A substance that takes part in and undergoes change during a reaction.
- A pure substance consisting of only one type of atom, defined by its atomic number.
- A group of two or more atoms chemically bonded together.
- The smallest unit of an element that retains its chemical properties, consisting of a nucleus surrounded by electrons.
- A thing or person that is the result of an action or process.
15 Clues: The process of burning something. • A group of two or more atoms chemically bonded together. • A thing or person that is the result of an action or process. • A thing or person that is the result of an action or process. • The basic structural and functional unit of all living organisms. • A substance that takes part in and undergoes change during a reaction. • ...
Equilibria 2016-08-04
Across
- Reactants or products can't enter of leave
- [ ] represents the equilibrium _________ in mol dm-3
- used for the reactants and products when a chemical reaction involves just gases
- total pressure of a system is equal to the ____ of the partial pressures of each of the gases
- some of the reactants and/or products in an equilibrium reaction are in different phases
- _________ equilibrium occurs when the rate of the forward reaction and backwards reaction are equal
Down
- meaning of Kc
- how position of equilibrium is changed by the addition of a catalyst
- its effect of the position of equilibrium is dependent upon the number of moles of gas
- A reactant or product which has a (g) in a symbol equation
- a principle which concerns the effect of changing conditions on the position of equilibrium
- an equilibrium reaction involving reactants and products which are in the same phase
- altering this quantity will change the Kc value for a particular reaction
- increasing temperature decreases yield in an __________ reaction
14 Clues: meaning of Kc • Reactants or products can't enter of leave • [ ] represents the equilibrium _________ in mol dm-3 • A reactant or product which has a (g) in a symbol equation • increasing temperature decreases yield in an __________ reaction • how position of equilibrium is changed by the addition of a catalyst • ...
Materials_Chemical Reaction 2025-02-17
Across
- Synthetic polymer is divided into linear, ........, cross-linked.
- It means many.
- Two hydrogen atoms and one oxygen atom.
- Can change, a number before an element or a compound.
- Always written on the left.
- A number after and element and you can't change.
- Out, released.
- Polymers with low melting point and reusable.
- Inorganic, non-metallic solids.
- Element "K".
- You can't bring it back.
- Law of ................. of mass.
- Human bones are composed of ............. and hydroxyapatite.
Down
- Made up of repeating smaller molecules.
- Products are always H2O and CO2.
- Producing heat energy and is exothermic.
- H2O, CO2, C6H12O6.
- What to do with coefficient and subscript?
- Synthetic polymer that are often used daily.
- Na,K,Fe,Mg,N,C,Ar.
- In, absorbed.
- Produced after a reaction.
- An example of a natural polymer.
- Another word for equal.
- Polymer that is man-made.
- Easy to break.
- A process when monomers are put together.
- One sign of chemical reactions is a change in ...........
- It means chemically non-reactive.
- Clay-based ceramics.
30 Clues: Element "K". • In, absorbed. • It means many. • Easy to break. • Out, released. • H2O, CO2, C6H12O6. • Na,K,Fe,Mg,N,C,Ar. • Clay-based ceramics. • Another word for equal. • You can't bring it back. • Polymer that is man-made. • Produced after a reaction. • Always written on the left. • Inorganic, non-metallic solids. • Products are always H2O and CO2. • An example of a natural polymer. • ...
Chemical Reaction & Matter (7.1) 2 2023-11-30
Across
- Most common gas in the atmosphere.
- Most common natural gas to heat up homes.
- Substance at the end of a chemical reaction.
- When reading inside a graduated cylinder, we read the bottom of the _____ line.
- This gas can be flammable. Changes from solid to gas with no liquid phase.
- This gas used to light up fire can create a glowing ember.
Down
- This gas is used to blow up balloons.
- Substance at the start of a chemical reaction.
- When matter change from one state to another.
- A group of atoms bonded together.
- A property used to describe smell.
- Basic building block in chemistry.
12 Clues: A group of atoms bonded together. • Most common gas in the atmosphere. • A property used to describe smell. • Basic building block in chemistry. • This gas is used to blow up balloons. • Most common natural gas to heat up homes. • Substance at the end of a chemical reaction. • When matter change from one state to another. • Substance at the start of a chemical reaction. • ...
fuel system 2023-03-02
Across
- heating value
- not thermal but _________
- required for fuel tanks
- oil
- connects cylindrical tanks
- stores fuel
- computer
- diesel fuel
Down
- water in fuel
- filter
- antiknock quality
- ignition quality
- resistance
- point where vapors ignite
- cleans fuel
- cyclohexanol nitrate
- filter
- enables chemical reaction
- compressed natural gas
- NOx+HC+ultraviolet ight+time
- water form
21 Clues: oil • filter • filter • computer • resistance • water form • cleans fuel • stores fuel • diesel fuel • water in fuel • heating value • ignition quality • antiknock quality • cyclohexanol nitrate • compressed natural gas • required for fuel tanks • point where vapors ignite • not thermal but _________ • enables chemical reaction • connects cylindrical tanks • NOx+HC+ultraviolet ight+time
Beginner's Luck (Easy) 2017-10-24
Across
- Heat unit
- Proton acceptor
- Chlorine or bromine
- Radioactive elements
- _______ flask
- On target
- Seven
- Reaction accelerant
- Solute + solvent
- Element number 16
Down
- Type of gas
- Shell
- Concentration unit
- Atomic linkage
- Phase change
- Pressure unit
- Not neutral
- Type of mixture
- Wave period
- Chemical equation species
- Temperature unit
- 6.02x10^23
22 Clues: Shell • Seven • Heat unit • On target • 6.02x10^23 • Type of gas • Not neutral • Wave period • Phase change • Pressure unit • _______ flask • Atomic linkage • Proton acceptor • Type of mixture • Temperature unit • Solute + solvent • Element number 16 • Concentration unit • Chlorine or bromine • Reaction accelerant • Radioactive elements • Chemical equation species
Biology Vocab 2024-11-11
Across
- specialized structure that performs important cellular functions within a eukaryotic cell
- process of noticing and describing events or processes in a careful, orderly way
- compound that produces hydroxide ions in a solution; solution with a pH of less than 7
- a preference or point of view that is personal, not scientific
- in cells, structure that contains a cell's genetic material in the form of DNA
- basic unit of all forms of life
- subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
- cell organelle that stores materials like water, salts, proteins, and carbohydrates
- a logical interpretation based on prior knowledge and experience
- substance formed by the chemical combination of two or more elements in definite proportions
- organism whose cells contain a nucleus
- one of several forms of a single element, which contains the same number of protons but different numbers of neutrons
- elements or compounds that enter into a chemical reaction
- cell organelle that breaks down lipids, carbohydrates, and proteins into small molecules that can be used by the rest of the cell
- compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
- material composed of two or more elements or compounds that are physically mixed together but not chemically combined
- mixture of water and an undissolved material
- substance that is dissolved in a solution
- reactant of an enzyme-catalyzed reaction
- in cells, structure that contains the cell's genetic material in the form of DNA
- unicellular organism that lacks a nucleus
- macromolecule that is needed by the body for growth and repair
Down
- possible explanation for a set of observations or possible answer to a scientific question
- evidence; information gathered from observations
- smallest unit of most compounds that displays all the properties of that compound
- combination of chemical reactions through which an organism builds up or breaks down materials
- cell organelle consisting of RNA and protein found throughout the cytoplasm in the cell
- small chemical unit that makes up a polymer
- pure substance that consists entirely of one type of atom
- dissolving substance in a solution
- well-tested explanation that unifies a broad range of observations and hypotheses
- atom that has a positive or negative charge
- compound that prevents sharp, sudden changes in pH
- macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
- organelle that is found in the cells of plants and some other organisms that captures energy from sunlight and converts it into chemical energy
- signal to which an organism responds
- protein catalyst that speeds up the rate of specific biological reactions
- genetic material that organisms inherit from their parents
- attraction between molecules of the same substance
- molecules composed of many monomers; makes up macromolecules
- fluid portion of the cell outside the nucleus
- force of attraction between different kinds of molecules
- to change over time
- compound that forms hydrogen ions in a solution; a solution with a pH of less than 7
- relatively constant internal physical and chemical conditions that organisms maintain
- elements or compounds produced by a chemical reaction
- substance that speeds up the rate of a chemical reaction
- type of mixture in which all the components are evenly distributed
- scientific study of life
- the basic unit of matter
- negatively charged particle; located in the space surrounding the nucleus
51 Clues: to change over time • scientific study of life • the basic unit of matter • basic unit of all forms of life • dissolving substance in a solution • signal to which an organism responds • organism whose cells contain a nucleus • reactant of an enzyme-catalyzed reaction • substance that is dissolved in a solution • unicellular organism that lacks a nucleus • ...
Unit 6 and 7 Chem. Terms 2022-06-15
Across
- Calculate this percentage to find how close your prediction was
- A reactant that is used up by the end if the experiment
- Set this up to complete your stoichiometry calculation
- The real amount of product created at the end of the reaction
- The total mass of a compound in a reaction
- Tells you how many moles of each reactant and product there are
- Studies the amounts of substances that are involved in chemical reaction
Down
- Tells you how the amount of atoms within a compound
- A predicted amount of product at the end of a reaction
- Substance produced at the end of a reaction
- A reactant that is leftover at the end of the experiment
- An equation must be this before proceeding in any calculations
- Use this when converting between particles and moles
- Use this ratio to convert between moles
- A counting unit invented by chemists to count atoms in groups
15 Clues: Use this ratio to convert between moles • The total mass of a compound in a reaction • Substance produced at the end of a reaction • Tells you how the amount of atoms within a compound • Use this when converting between particles and moles • A predicted amount of product at the end of a reaction • Set this up to complete your stoichiometry calculation • ...
Plant vocab review! 2021-03-31
Across
- The large central sac that acts as storage for the cell
- Organelle responsible for cell respiration
- Organelle responsible for photosynthesis
- The openings on the underside of a leaf (plural)
- The process of water being pulled up the roots and out through the leaves
- The process when pollen & ovule combine to make seeds
- Type of tissue that makes up the outer covering of a plant
- This is what the ovules become after fertilization (plural)
- A characteristic that allows an organism to survive and reproduce
- This is what the ovary becomes after fertilization
- Layer of leaf responsible for photosynthesis
- Type of tissue where new growth happens
- The substances made by a reaction (plural)
- Type of tissue that helps with storage, support, or photosynthesis
- The transfer of pollen from one flower to another
- Tube that transports water in one direction
Down
- Chemical reaction that uses light to create sugar
- Organelle the controls cell function and protects its DNA
- Type of tissue that transports water & sugars
- A temporary period of inactivity
- The directional growth of a plant in response to a stimulus
- The female reproductive part of a flower
- The male reproductive part of a flower
- The substances that are used in a reaction (plural)
- The reproductive structure of an angiosperm plant
- Chemical reaction that changes sugar into usable energy
- The process where seeds sprout and begin to grow
- Tube that transports sugars in both directions
- Layer of lead responsible for gas exchange
- A rigid structure that surrounds a plant cell
30 Clues: A temporary period of inactivity • The male reproductive part of a flower • Type of tissue where new growth happens • Organelle responsible for photosynthesis • The female reproductive part of a flower • Organelle responsible for cell respiration • Layer of lead responsible for gas exchange • The substances made by a reaction (plural) • ...
Chemical Equations 2024-01-11
Across
- a chemical equation written so as to satisfy the law of conservation of mass
- a number in front of a chemical substance that says how many of it in a chemical reaction
- a tiny number lower than a chemical letter that says how many atoms of it in a molecule
Down
- a way of writing down a chemical reaction in symbols (2 words)
- the starting materials in a chemical reaction
- the outcome substances of a chemical reaction
6 Clues: the starting materials in a chemical reaction • the outcome substances of a chemical reaction • a way of writing down a chemical reaction in symbols (2 words) • a chemical equation written so as to satisfy the law of conservation of mass • a tiny number lower than a chemical letter that says how many atoms of it in a molecule • ...
