Light

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 4. The color of the sky on a clear day (4)
  2. 5. A polyhedron with two congruent and parallel faces and whose lateral faces are parallelograms (5)
  3. 8. Any of three colors from which all others can be obtained by mixing (plural) (14)
  4. 10. The color of snow (5)
  5. 11. What lets us see; the opposite of dark (5)
  6. 13. Any of numerous low-growing violas with small flowers (6)
  7. 15. An electrical device that alters the frequency spectrum of signals passing through it (plural) (7)
  8. 16. The color of a fire truck (3)

Down

  1. 1. A poker hand with 5 consecutive cards (8)
  2. 2. Shade within clear boundaries (6)
  3. 3. A brittle transparent solid with irregular atomic structure (5)
  4. 6. Polished surface that forms images by reflecting light (plural) (7)
  5. 7. An ordered array of the components of an emission or wave (8)
  6. 9. The phenomenon of a propagating wave being thrown back from a surface (10)
  7. 12. The color of grass (5)
  8. 14. To take up mentally (6)