Across
- 4. The flame which is hotter.
- 7. a type of alcohol
- 8. ducks these are the floating devices used to harness energy from waves
- 10. this station harness energy froim running or falling water from height.
- 12. it provides us with all the energy.
Down
- 1. the substances that burn to release energy.
- 2. gas formed when animal rot in the absence of air.
- 3. _______ of energy is needed as it will run out otherwise.
- 5. It is formed when dead plants are buried under heat oover period of time.
- 6. it provides living tihngs with energy
- 9. it is energy inside earth.
- 11. it is formed when plankton dier and burries under heat and pressure.