Across
- 4. Here the energy from the sun is converted to electrical energy.
- 5. This is made of trees that died millions of years ago
- 6. Energy of the sun.
- 8. An energy that helps us in hearing.
Down
- 1. Another name of mechanical energy.
- 2. A liquid extracted from the earth.
- 3. Current that flows in the wire.
- 7. A renewable fuel.