blazejewskia Energy Crossword

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Across
  1. 2. Energy in the form of heat and light given off by the sun
  2. 4. When fuel rods that are inside a nuclear reactor melt
  3. 5. examples are coal, natural gas, and oil
  4. 7. The chemical compounds that have carbon and hydrogen atoms in them
  5. 9. The percentage of coal mined in the U.S.A. that is exported to other countries
  6. 10. These are put between the fuel rods if the reactor vessel gets too hot to slow down the chain of reactions
  7. 13. This element isn't commonly used as a fuel today because it takes more energy than is produced when it burns, and it is expensive
  8. 14. What is it called when the two kinds of hydrogen are forced together by tremendous heat and pressure and it creates a helium nucleus with less mass than the hydrogen nuclei and the lost mass is converted into energy
  9. 16. What is the third need for fuel if the other two are transportation and heating and cooling
  10. 17. Reducing the amount of energy you use
  11. 23. Comes from the Earth's core as heat
  12. 27. The place where nuclear fission occurs in a nuclear power plant
  13. 28. A factory where crude oil is heated and then separated into fuels and other products
  14. 29. A type of energy that is clean, renewable, and inexpensive
  15. 30. Energy that can be replenished in a relatively short period of time
Down
  1. 1. Formed by mixing alcohol and gasoline
  2. 3. A layer of material that traps air to block the air inside and outside of a building from transferring
  3. 6. Solar energy is the original source of energy in wind and this
  4. 8. A type of light bulb that is energy efficient
  5. 11. What oil is mainly used for
  6. 12. Electricity produced by flowing water
  7. 15. Captures water and heats water inside of a tank
  8. 18. What is it called when a neutron strikes the U-235 nucleus and then the U-235 nucleus splits into two smaller nuclei and more neutrons and energy are released
  9. 19. This is what most coal is used for
  10. 20. Created by burning wood, crops, and animal waste
  11. 21. When a chemical change occurs, energy is provided by a substance
  12. 22. The compounds that are produced from oil
  13. 24. This is where water changes into steam from the heat inside of a nuclear power plant.
  14. 25. What does the steam turn to generate electricity inside of a nuclear power plant
  15. 26. Energy that cannot be replenished in a short amount of time