Across
- 3. - Used in wind energy
- 4. - A form of energy from the sun
- 5. - The planet we live on, and source of geothermal energy
- 6. - Energy from the sun
- 7. - Renewable energy from moving air
- 8. - Something that grows into a plant, related to biomass
Down
- 1. - Used in hydro energy
- 2. - Source of biomass energy
- 6. - Source of solar energy
- 7. - Ocean movement used for energy
