Across
- 2. to cause something to become warm or hot.
- 5. Gases gases that pollute the air and cause the warming of the Earth's atmosphere <carbon dioxide
- 8. something that makes vision possible, either you switch it on or comes up naturally.
- 10. panel a large, flat piece of equipment that uses the sun's light or heat to create electricity.
- 11. a natural movement of air.
Down
- 1. the ability to control things or people.
- 3. usable power that comes from heat, electricity.
- 4. a material that is burned to produce heat or power ( oil, gas).
- 6. a form of energy that is carried through wires and is used to operate machines, lights etc.
- 7. a black hard substance within the earth that is used as fuel.
- 9. a substance that is like air and has no fixed shape.