Across
- 3. Gas that turns limewater cloudy (6,7)
- 6. Elements on the left hand side of the periodic table are all _______ (6)
- 7. What you see in a chemical reaction when gas is made (7)
- 8. Endothermic reactions take in _____ energy (4)
Down
- 1. A substance that increases the rate of a reaction (8)
- 2. The chemicals you start with in a reaction (9)
- 4. Fires need fuel, heat and _________ to burn (6)
- 5. Chemical being broken down by heat is called Thermal ___________ (13)