Across
- 4. solid breaks apart into particles in a liquid
- 5. substances we start with in a chemical reaction
- 6. average of a set of numbers
- 8. no matter can get in or out of the system
- 12. made of one type of material throughout
- 13. when a material can dissolve in another substance
- 14. question you want to investigate
- 15. characteristic of substance that doesn't change
- 16. how a substance interacts with fire
- 17. when a material can't dissolve in a substance
Down
- 1. substances that we have after a chemical reaction
- 2. what you want to change or test
- 3. reaction the way atoms can rearrange to make a molecule
- 7. unit rate that is a ratio of mass to volume
- 9. matter can get in or out of the system
- 10. what you are going to measure
- 11. a blend of two or more substances