Across
- 2. To take something in
- 3. To use something
- 4. There are four in a year
- 9. The ability to do work
- 11. Related to the sun
- 12. A form of energy
- 14. the amount of a product or service that people want
- 15. Collects sunlight on the roof of houses
- 16. To make dirty or unclean
- 17. Produced by movement
- 18. A machine that turns by water or wind and produces electricity
Down
- 1. Many different types of things or people
- 3. To change in form or character
- 4. A place, person or thing that you get something from
- 5. Fuels that are nonrenewable
- 6. To take the place of somebody or something
- 7. To help somebody remember something
- 8. Water power
- 10. To produce or create
- 13. The rise and fall of the sea