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