CostasA Energy Crossword

5. one of the most efficient and clean energy sources, but also the most potentially dangerous.
6. used in the production of panels used in solar energy gathering.
9. energy produced by flowing water.
14. A practical form of nuclear energy involving nuclei splitting.
16. the leading energy source of electricity production in the U.S.
17. A negative substance released into the air as a side effect of some energy sources.
19. A factory where crude oil is converted to other substances.
20. heat from Earth's interior.
21. powers things like heat, electricity, and transportation as fuel.
23. A mixture of gasoline and natural alcohol used as fuel in cars.
24. wood, plant parts, manure, and food wastes that can be used as fuels.
25. fuel sources that cannot be renewed.
28. used to create energy with wind and water.
29. A source of flammable energy composed by chemicals changing.

1. fuels formed naturally under extreme pressure and long periods of time.
2. movements in water capable of creating energy or power.
3. chemical carbons made of carbon and hydrogen.
4. machines that create electricity when turbines help move them.
7. produced from steam reforming and used for energy.
8. chemical compounds made from oil.
10. factors that weaken or disable an energy source.
11. keeping heat trapped inside spaces.
12. the main use of oil as a fuel in the U.S.
13. the original source of the energy in wind and flowing water.
15. an impractical form of nuclear energy.
16. two ways of energy _ are solar panels and insulation.
18. the least used significant energy source of electricity production in the U.S.
22. Energy that comes directly from the sun's rays.
26. fuel sources capable of being renewed.
27. the main use of coal as a fuel in the U.S.