Light Waves

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Across
  1. 3. this energy travels through empty space
  2. 5. a lens through which objects appear smaller and farther
  3. 6. allows light to travel through
  4. 8. does not allow light to travel through
  5. 9. light hits a hard medium and is bounced off at an opposite angle
  6. 10. light hits medium and is bent
Down
  1. 1. triangular piece of glass or plastic can bend light
  2. 2. describes straight lines traveled by light
  3. 4. a lens through which objects appear larger and closer
  4. 7. allows some light to travel through