Across
- 1. Time of day solar energy doesn't work
- 3. Produced from dead plants and animals
- 6. Non-renewable source of energy
- 7. Energy that cannot be depleted over time
- 9. Solar cells covert electromagnetic _____ to electricity.
- 10. Example of nuclear energy
- 11. Renewable energy
Down
- 2. Energy from hot springs
- 4. Energy from the sun
- 5. First satellite with solar cell
- 8. Secondary source of energy