Across
- 3. to make our house warm
- 4. moving air
- 8. one of the types of fossil fuels
- 9. Materials from natural to make the things we need.
- 10. heating or cooling up our buildings
- 12. What nonrenewable resources are mostly made of.
- 13. Water and energy captured into eletricity
- 14. Made from plants and animals.
Down
- 1. replace something really fast.
- 2. Sun produced energy in the form of heat and light
- 5. Cannot be replaced at the same rate it is being used.
- 6. one of the types of fossil fuels
- 7. IMPORTANT to us humans.
- 11. one of the types of fossil fuels
- 15. made from man-made.