Gradys puzzle

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Across
  1. 4. doesn’t let all light pass through but lets some
  2. 7. of Reflection:The angle of reflection equals the angle of incident
  3. 9. that results from the energy released from a chemical reaction
  4. 11. can light be described like the spokes of a bicycle wheel: Because you have the light in the middle that's expanding out
  5. 13. persistent emission of light following to and removal of a source of radiant energy
  6. 18. Ray:Ray that comes from the life source and strikes the surface
  7. 19. Ray:Ray that bounces off the surface
  8. 21. an object is heated up to a high temperature so it emits lights
  9. 24. The distance from crest to crest or from trough to trough
  10. 25. chemical reactions react inside of an organism and provides light
Down
  1. 1. The height of the crest or the depth of the trough from the rest position
  2. 2. The low part of a wave
  3. 3. energy that spreads out from a source in all directions
  4. 5. A substance that light passes right through
  5. 6. process where a light bounces off of a surface
  6. 8. ability of chemicals to absorb light and then give off light
  7. 10. form of energy that you can see
  8. 12. no light through
  9. 14. Model:Is a way of thinking about light as rays
  10. 15. out
  11. 16. forms can the energy of absorbed light take: Heat, chemical energy, and electrical energy
  12. 17. The rate at which the waves move up and down
  13. 20. when light is refracted into different colors the resulting pattern is called a spectrum
  14. 22. The high part of a wave
  15. 23. in