Across
- 2. speeds up a chemical reaction
- 4. dioxide a gas which turns limewater cloudy
- 7. means to break down
- 9. has the chemical symbol Mg
- 10. makes bonds
Down
- 1. breaks bonds
- 3. means heat
- 5. means to add oxygen
- 6. An example of a chemical reaction observation
- 8. means to burn a fuel in plenty of oxygen