Across
- 3. fuel consisting of the remains of organisms preserved into rocks
- 4. energy from the sun that is converted into thermal or electrical energy
- 6. the sun revolves around a gravitational field
- 9. the process of becoming warmer or by rising temperature
Down
- 1. generates electricity
- 2. biggest star and produces the solar energy
- 5. capable of being reused
- 6. conducts the sun to provide elctricity
- 7. the rays of the sun
- 8. the 3rd planet from the sun