Energy Crossword Puzzle

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Across
  1. 2. energy of motion
  2. 6. energy is the ability to do ____
  3. 10. form of heat that can move through empty space
  4. 11. energy of moving electrons
  5. 12. place or object from where a form of energy is taken
  6. 13. metric units for energy
  7. 14. average kinetic energy of the molecules in an object or substance
  8. 17. "energy ___"; changing energy from one form into another
  9. 19. energy stored because of stretching or compressing
  10. 20. movement of thermal energy from one place to another
  11. 21. energy that moves in electromagnetic waves; also called light
Down
  1. 1. energy stored because of weight and height
  2. 3. energy stored in the bonds between atoms
  3. 4. form of heat requiring moving fluids
  4. 5. fossil fuels and nuclear power are examples of this kind of energy resource
  5. 7. form of heat requiring direct contact
  6. 8. energy stored in the nucleus of atoms that holds together protons and neutrons
  7. 9. energy sources that replenish faster than the rate of being used by humans
  8. 15. stored energy
  9. 16. energy of vibrating molecules; can be felt or heard
  10. 18. energy of molecular motion