Across
- 1. colorful display on 4th of July
- 6. used to retrieve metals
- 7. a scientist muppet
- 8. to uncover
- 12. a mixture of chemicals
- 13. something with a definite shape and volume
- 15. formation of a new substance is a sign of _____
- 16. solid to liquid, liquid to gas
- 17. when the leaves change colors
- 18. chemicals combine wih metal in rocks forming _____
Down
- 2. cutting the grass cannot be ______
- 3. melting ice is an example of ______
- 4. made up of many sugar molecules surrounded by molecules of water
- 5. to keep, preserve
- 7. the process of a liquid to a gas
- 9. used to time a reaction
- 10. the process of a solid to a liquid
- 11. extraction of minerals
- 12. sugar crystals dissolve because they are _____ in water
- 14. tube of glowing color