Across
- 2. Tool used to measure temperature
- 5. Material that allows heat to flow
- 6. Moving air used for energy
- 10. Energy that can run out
- 11. Related to heat
- 12. Heat transfer by direct contact
- 14. Metric scale for measuring temperature
- 16. Energy that can be replaced naturally
- 17. Fuel from ancient plants and animals
- 18. Harmful substances in the environment
Down
- 1. Heat transfer by movement of fluids
- 3. Energy from moving water
- 4. Material that slows heat transfer
- 7. Energy from the Sun
- 8. The ability to do work or cause change
- 9. Energy that makes things warmer
- 11. How hot or cold something is
- 13. Using resources wisely
- 15. Heat transfer by waves
