Ch. 19 Vocab.

123456789101112131415161718192021222324252627282930
Across
  1. 3. devise that produces a powerful beam of light
  2. 9. transparent material that bends light
  3. 12. occurs when light is repeatedly reflected within a given material
  4. 14. can be projected onto a screen
  5. 17. material that blocks light
  6. 21. reflection that forms a clean image
  7. 23. triangular piece of transparent glass that separates white light into a band of colors
  8. 25. separation of white light into its component colors
  9. 26. use of optical fibers
  10. 28. seven colors that make up white light
  11. 29. range of electromagnetic waves
  12. 30. straight line that shows the direction of light
Down
  1. 1. curves outward
  2. 2. green plant cells
  3. 4. image cannot be project onto a screen
  4. 5. substance in plants that absorbs the Sun's light and gives plant their green color
  5. 6. picture formed by the eye
  6. 7. from of electromagnetic energy made up of streams of photons
  7. 8. process by which plants use energy from the Sun to make food
  8. 10. curves inward
  9. 11. material that transmits some light
  10. 13. organ that detects light
  11. 15. one of sense
  12. 16. object that reflects light
  13. 18. object that gives off its own light
  14. 19. wave where particles of the medium moves up and down at right angles
  15. 20. reflection that forms a fuzzy image
  16. 22. material that transmits light easily
  17. 24. tiny bundle of energy
  18. 27. smooth surface that reflects light and forms images