Across
- 2. Most of the hydrogen in the world is combined with
- 7. Is solar renewable or nonrenewable
- 10. Heat from the earth's core
- 12. Alcohol added to gasoline
- 15. One way to save energy
- 18. A pro to hydropower
- 19. We mainly use oil for
- 21. A pro of wind power
- 22. Crude oil is heated and separated into fuels
- 23. Chemical compounds that contain carbon and hydrogen
- 25. Compounds made form oil
- 26. What is a con of solar power
- 27. Substance that provides energy
- 29. What is wind turning a blade to make energy
Down
- 1. made from oil Petrochemicals
- 3. Heat from the earth's core Geothermal
- 4. What is an advantage of solar power
- 5. Disadvantages of Biomass
- 6. We mainly use oil for
- 8. Light and heat given off by the sun
- 9. What is a con of solar power
- 11. Disadvantage of wind power
- 13. Electricity produced by flowing water
- 14. Geothermal provides
- 16. What is sun hitting a cell to create energy current
- 17. Hydropower effects
- 20. What happens when a car burns gasoline
- 24. An advantage of geothermal
- 28. An advantage of Biomass