Across
- 1. collect energy from the sun
- 3. compounds that are made from oil
- 4. coal, natural gas, petroleum
- 6. does not cause pollution and cannot run out in billion years
- 10. transportation is used more in use in the USA
- 11. fusion when nuclear combine
- 12. reducing energy use
- 15. solar energy, hydroelectric, biomass fuel
- 16. original source of energy in wind and flowing water
- 17. gasoline and alcohol combined
- 19. heat from Earth's interior
- 22. coal, oil, natural gas
- 23. wood, plant parts, manure, and food waste that can fossil fuel
- 25. flows in water provides a steady supply
- 27. a substance that provides energy
- 28. is the most used energy
- 29. Hydroelectric, nuclear, Hydrogen
Down
- 2. accures by breaking apart
- 5. uses less energy to produse light
- 7. why isn't Hydrogen used commonly
- 8. nuclear fusion creates so not commonly used
- 9. Paint Eosmetic are petrochemical
- 13. electricity heating and cooloing are the three needs
- 14. a factory separates into fuel and other products
- 18. clean energy that is renewable, and which injures bird.
- 20. material that traps air, heating and cooling system to block heat to be transfored
- 21. wind energy works when is blowing
- 24. chemicals compound that contain carbon and hydrogen atoms
- 26. percentage of energy that is used to preform