Across
- 4. = Electrical devices used daily
- 6. = Energy source that can be used again
- 8. = Energy produced from water
- 10. = Fuel formed from dead plants and animals
- 11. = Energy from the sun
- 12. = Material used to reduce heat loss
Down
- 1. = Protection of natural resources
- 2. = Able to continue for long time
- 3. = Movement of people using vehicles
- 5. = Gas that traps heat in atmosphere
- 7. = Form of energy used in homes
- 9. = Using less energy for same work