Across
- 5. What stays the same when a substance turns from liquid to gas?
- 7. The particles that make up ice (solid water) are _______ as the particles that make up water as a liquid or gas
- 8. In what state do the particles only vibrate in place?
- 10. Characterized by a change in shape, size, or appearance
- 12. a physical change where something mixes evenly with another
- 13. True/False:not all changes are reversible
- 14. How many signs of a chemical change are there by just looking at it?
- 15. A change when milk is going sour
Down
- 1. Matter cannot be created or destroyed in a chemical reaction
- 2. Formation of gas/precipitate, and color change.
- 3. A change in the state of matter
- 4. When water (liquid) turns into ice (solid)
- 6. True/False:Burning wood is reversible
- 9. The rate at which one state of matter changes to another_______ on the rate at which energy is added or taken away from the substance
- 11. reaction Thermal energy is often needed for a(n)____________ to happen