Across
- 2. energy from dead organic materials
- 4. energy from moving air
- 5. energy from radioactive materials
- 9. ability to do work
- 10. energy from the sun
- 12. energy from steam underground
- 13. bare land with nothing
Down
- 1. fossil fuel
- 3. main source of energy for the earth
- 4. energy from moving water on sea
- 6. fossil fuel starting with C
- 7. any source of energy
- 8. energy from trapped water in a dam
- 11. energy resource use for cooking in the kitchen