Across
- 1. energy from moving air
- 4. sticky and black stuff from the ground
- 6. energy from the earth
- 8. energy from water
- 9. energy that is gone forever after we use it
- 10. a black rock that we can burn
Down
- 2. you burn it in your kitchen to cook food
- 3. energy from the sun
- 5. has enough power to destroy a city
- 7. energy from nature that does not go away
