Across
- 3. True or False Aristotle's theories have been disproved.
- 7. Process of oxygen chemically combining with iron.
- 9. When objects rust they gain what?
- 10. Lavoisier proposed and proved what law?
- 12. A gas with a lot of energy.
- 14. Substance with only one type of atom.
- 19. What seeks oxygen?
- 21. Place where Aristotle was from.
Down
- 1. True or false all matter is not the same.
- 2. Another name for sodium bicarbonate.
- 4. Water changing into ice is what type of matter change?
- 5. A green, elastic solid.
- 6. Father of Zoology.
- 8. Star of the movie Flubber
- 11. The smallest building block of matter.
- 13. Hydrogen and Oxygen make this compound?
- 15. True or false some baking powders have two acids?
- 16. True or false can a solid and a liquid be combined to form a gas?
- 17. Matter changes that cannot be reversed?
- 18. One phase of matter.
- 20. What blood carries to lungs and other parts of body.