Science

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