Science Crossword

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Across
  1. 2. a flat sheet of glass that has a smooth, silver colored coating on one side
  2. 9. a transverse wave that involves the transfer of electric and magnetic energy
  3. 12. a material that transmits most of the light that strikes it
  4. 14. this occurs when parallel rays of light hit a smooth surface
  5. 15. an imaginary line that divides a mirror in half
  6. 16. a material that scatters the light that passes through it
  7. 17. any two colors that combine to form white light are called this
  8. 19. occurs when parallel rays of light hit an uneven surface
  9. 23. three colors that can combine to make any other color
Down
  1. 1. when the three primary colors of light are combined in equal amounts
  2. 2. the light that passes through a polarized filter
  3. 3. this forms when light rays actually meet
  4. 4. the image you see in a plane mirror
  5. 5. when light causes an electron to move so much that it is knocked out of metal
  6. 6. the energy that electromagnetic waves transfer through matter or space
  7. 7. a mirror with a surface that curves out-ward
  8. 8. a copy of the object formed by reflected or refracted rays of light
  9. 10. a mirror with a surface that curves inward like the inside of a bowl
  10. 11. a material that reflects or absorbs all of the light that strikes it
  11. 13. each packet of light energy
  12. 18. two primary colors combine in equal amounts to produce this
  13. 20. the point at which rays parallel to the optical axis reflect and meet
  14. 21. light waves as straight lines
  15. 22. a color that is produced when the three primary colors of pigments are combined in equal amounts
  16. 23. colored substances that are used to color other materials