Across
- 2. Point: physical property that describes the temperature at which a solid will become a liquid
- 5. the transfer of energy through the movement of a liquid.
- 7. Mass: equals the number of protons plus electrons in an atom
- 9. Mixtures: made of two or more substances and you can differentiate between the substances (sand)
- 12. neutrally charged subatomic particles found in the nucleus of an atom
- 15. pure chemical substance that is made up of two or more different elements
- 17. positively charged subatomic particles found in the nucleus of an atom
- 20. Electrons: electrons found in the outermost shell and involved in forming molecules
- 23. smallest unit of matter that defines the chemical reaction
- 25. definite volume but no fixed shape (water)
- 26. gas that is charged and conducts electricity easily (stars, neon lights, lightning). Plasma is different from the other states of matter in that it is a high-energy state of matter.
- 28. pure chemical substances that are made up of one type of atom
- 29. chemical property of how easily a substance will set on fire
- 30. physical property that describes how tightly matter is put together
- 31. Energy: Energy that is generated by movement within an atom**
- 32. definite shape and volume which cannot be easily changed (ice)
- 33. Properties: properties that are measurable and can be observed, can be determined without changing the chemical properties of an object (color, hardness, area, length, strength, temperature, state of matter)
Down
- 1. Table of Elements: table arranging all the known elements into groups with common properties. This arrangement also demonstrates trends based on those properties.
- 2. made of two or more atoms joined together chemically; can be the same element (Oxygen) or different elements (Water)
- 3. Energy: energy that is generated and measured by heat (kinetic energy of an atom)
- 4. Mixtures: made of two or more substances and you cannot differentiate between the substances (salt water)
- 6. negatively charged subatomic particles found in the electron cloud of an atom
- 8. amount of space that an object or substance occupies (physical property)
- 10. energy that is transferred by waves of the electromagnetic spectrum, such as sunlight.
- 11. anything that has mass and occupies space
- 13. Substance: matter of any form that cannot be broken down into separate elements by physical means but can be broken down using chemical changes
- 14. chemical property of the capacity of an atom or molecule to go through a chemical reaction with another atom or molecule
- 16. made of two or more substances that are not combined chemically
- 18. Point: physical property that describes the temperature at which a liquid will become a gas
- 19. no definite shape (take the shape of the container) and no definite volume (steam)
- 21. the transfer of energy through direct contact of objects.
- 22. Number: equals the number of protons in an atoms
- 24. of Matter: different forms that matter can be found in
- 27. Atomic mass unit.
- 29. Properties: properties that can be measured only by chemically changing an object (fire)