Across
- 2. what creates circulation throughout house with solar heat
- 6. what do the wind have to be to get enough power
- 7. built dams to make what kind of waterfall
- 13. what is oil mainly used for
- 14. name of something that can be remade in a short time
- 17. what comes from the sun and goes through solar panels
- 18. what rips the cells apart
- 19. what is impossible to power on demand
- 22. what is cost and energy efficient
- 23. what can be burned for fuel instead of wood and coal
- 24. compounds made from oil
- 25. what can be reformed
- 27. what comes from biomass created by humans
- 29. what is one of the 3 major fossil fuels
- 30. what is not eco-friendly
Down
- 1. How much area does wind take up in one farm
- 3. what energy conversions occur when a car engine burns gasoline
- 4. what animal is mostly affected by dams
- 5. what is coal mainly used for
- 8. hydropower is more what than wind and solar
- 9. both fuel cells and what convert the chemical reaction to electricity
- 10. how much less acid rain comes from geothermal
- 11. name of something that can be remade in a long time
- 12. what turns when wind hits it
- 15. what comes from movement of water
- 16. garbage can be burned as what
- 20. what is it called when alcohol is added to gasoline
- 21. what comes from the sun and goes through these panels
- 26. what cell will work if hydrogen is provided
- 28. what causes people to relocate