Fossil Fuels
Across
- 1. Drop off
- 5. Used in steam engines
- 7. Long tunnels
- 9. Used to dig into the earth
- 12. Cleaning
Down
- 2. Removal
- 3. Used by miners
- 4. Used in meany cars
- 6. Digging deep in the earth
- 8. Found deep under ground
- 10. Out in the water
- 11. Boom