Across
- 2. rocks made from compressed smaller rocks
- 5. when sulphur dioxide mixes with water falling from the sky
- 6. water moving between the oceans, air, and back again
- 9. harmful chemicals put into the environment
- 10. science word for rain and snow
- 11. black powder left by fire
Down
- 1. rocks changing over millions of years
- 3. liquid to gas
- 4. rocks made from heat and pressure changing other rocks
- 7. gas to liquid
- 8. rocks made from cooling lava
- 9. a fuel we put in cars