Across
- 3. A chemical made of only one type of atom
- 6. A chemical process that occurs in cells (respiration is an example)
- 8. A physical process using filter paper
- 9. The color of a flame releasing more heat
- 10. A gas that is used a fuel in the home
- 11. A physical process used to separate alcohol from water
- 15. A chemical process that uses stomach acid and enzymes
- 16. The type of combustion that produces smoke (carbon particles)
- 19. Oxidation of iron (a chemical process)
Down
- 1. This type of combustion produces a blue flame
- 2. The color of a flame releasing less heat
- 4. A poisonous gas released by incomplete combustion
- 5. A chemical made of two or more different types of atoms bonded together
- 7. This is conserved in chemical reactions (remember Lavoisier!)
- 12. Energy is always_____from one form to another in chemical reactions
- 13. Smoke is made of this element
- 14. Light, heat, sound, kinetic, electrical, sound are all forms of this
- 17. This type of process that is difficult to reverse
- 18. This type of process is easy to reverse