Across
- 2. Place where electricity is produced
- 5. Power used to create electricity or heat
- 7. Material used to produce energy
- 11. Gas produced from organic waste
- 12. The star that gives energy to plants
- 15. Resources that can naturally replace themselves
- 17. Heating biomass to create gas fuel
- 18. Living things that store energy from the sun
Down
- 1. Using waste again to create something useful
- 3. Farming activities that produce biomass
- 4. Process where bacteria break down waste
- 5. Energy that powers homes and devices
- 6. Using resources so they do not run out
- 8. Leftover materials that can be used for energy
- 9. Energy source that can be used again
- 10. Burning biomass to make energy
- 11. Energy from plants and natural waste
- 13. Gas absorbed by plants during growth
- 14. The natural world around us
- 16. A common biomass material from trees