Parker's Practice Test

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Across
  1. 2. the appearance of light bending when it moves from one medium to another
  2. 4. a wedge shaped piece of transparent glass that breaks up light into all the colors of the spectrum
  3. 7. short invisible light waves beyond violet on the spectrum
  4. 9. a dark purplish-blue color
  5. 11. a photographic or digital image of the internal part of the body
  6. 12. a clear piece of curved glass or plastic that is used to make things look clearer, larger, or smaller
  7. 13. allowing light but not detailed shares to pass through
  8. 14. think or heavy
Down
  1. 1. a doctor who specializes in eyes
  2. 3. the distribution of all the colors that make up light we see
  3. 5. to make something look larger or sound louder
  4. 6. protection from danger
  5. 8. long light waves beyond red o the spectrum that can only be seen with special instruments
  6. 10. a tool or measuring device