Across
- 4. Type of energy that is sustainable.
- 6. A consequence of fossile energy.
- 8. We can charge them with electricity.
- 10. Type of energy that is produced by water rushing down.
- 12. Driven by the heating effect of the Sun.
- 14. It radiates energy because energy deep inside of it.
Down
- 1. It can be extracted from oil.
- 2. A fossile energy.
- 3. An energy that can be used to make steam of heating buildings.
- 5. Some of them have huge amounts of nuclear energy stored in their nuclei.
- 7. Giant machine that produce wind energy.
- 9. The main type of energy converted by a lamp.
- 11. They are produced by the gravitationnal pull of the Moon.
- 12. It still an important fuel in many countries.
- 13. Hot air rising above it.