Perfect for beginners with simple, common vocabulary
Harnessing Nature's Power Sources
Moderate difficulty suitable for most players
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Across
- 2. Measure of useful output versus energy input
- 3. Organic material used as renewable fuel
- 4. Describes energy with minimal environmental impact
- 7. Study of organisms and their environment, linked to sustainability
- 9. Energy obtained from ocean movements
- 10. Energy derived from sunlight
Down
- 1. Energy from the Earth's internal heat
- 5. Structure that converts wind into mechanical energy
- 6. Machine that converts wind or water flow into energy
- 8. Particle of light important in solar energy
- 11. Prefix related to energy from flowing water
- 12. To restore or replace naturally
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