Energy Crossword Puzzle

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Across
  1. 3. nuclear reaction that takes place in the stars
  2. 4. this type of enrgy flows in waves
  3. 6. stored energy that is released when chemicals combine
  4. 7. energy that can be changed from one form to another
  5. 8. powerplants use this type of energy
  6. 10. energy from the vibrations of atoms that form a wave based on compressions and rarefractions
  7. 11. the spectrum that includes all forms of light
  8. 12. material that lets energy flow through
Down
  1. 1. occurs when stored energy from the nucleus is released
  2. 2. material that srops energy from flowing through
  3. 5. energy from random vibrating atoms
  4. 9. when one electron moves from one atom to another