Across
- 2. the change in an object’s position with respect to time and in comparison to the position of other objects used as reference points
- 3. a solid substance that forms and separates from a solution
- 6. energy that is stored in a system or object
- 7. a substance that takes part in and undergoes change during a reaction
- 11. a substance that is made of only one type of atom or molecule
- 12. the rate of change of position or distance traveled with respect to time
- 13. the total amount of potential and kinetic energy in a system
- 15. as one variable increases, the other variable decreases
- 17. a material that does not easily transfer thermal energy
- 19. matter cannot be created or destroyed during a chemical reaction
- 21. as one variable increases, the other variable increases or as one variable decreases, the other variable decreases
- 23. method or means of changing one or more chemicals or chemical compounds
- 26. has mass and takes up space; matter occurs as elements, compounds, and mixtures
- 27. materials made by humans
- 28. characteristic that can only be observed or measured when atoms of matter rearrange during a chemical change
- 29. energy cannot be created or destroyed, it can only change forms
- 30. a resource which can be replaced naturally
- 35. a short, easy way to show a chemical reaction, using symbols
- 36. two or more different atoms bonded together in a set ratio or proportion
- 37. a push or pull upon an object resulting from the object's interaction with another object
- 38. the total kinetic (motion) energy of tiny particles that make up matter
- 42. energy that is related to the motion of an object or system
- 43. physical and chemical characteristics of matter used to describe or identify a substance
- 44. a material that can transfer thermal energy easily
- 46. a force of air that acts against an object’s motion
Down
- 1. characteristic that can be observed or measured without changing the substance; for example, color, melting point, or conductivity
- 2. two or more substances which can be separated physically
- 4. used as a general term for the atoms and molecules that make up all matter
- 5. transfer of thermal energy between solids by direct contact
- 8. the process by which one or more substances change to produce one or more different substances
- 9. transfer of thermal energy through electromagnetic waves
- 10. a description of the composition of a substance using atomic symbols with numeric subscripts
- 14. pure substances composed of only one type of atom that cannot be broken down into any other substances
- 16. a resource for which there is a limited supply
- 18. a state of matter with a definite volume, but no definite shape
- 20. a state of matter with a definite shape and volume
- 22. the ability of a system to do work; energy is required for changes to happen within a system.
- 24. resources that exist in the environment without human intervention
- 25. the amount of matter in an object
- 31. all of the living and nonliving factors in an area
- 32. a number used in a chemical formula to express how many atoms of a specific element are in the substance
- 33. movement of energy from one system to another
- 34. a substance that is produced after a reaction has occurred
- 36. transfer of thermal energy within liquids or gases by circular movement of air
- 39. the simplest unit of a chemical compound that can exist, formed when two or more atoms join together chemically
- 40. the average kinetic energy of all the particles in a material
- 41. a force exerted against an object caused by rubbing against a surface or other object
- 44. solid material whose atoms, molecules or ions are arranged in a repeating pattern
- 45. a state of matter with indefinite shape and volume
- 47. the smallest part of an element, made of electrons, protons and neutrons