Science

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Across
  1. 4. Light waves bend when they enter a new medium
  2. 7. high pitched sound has high
  3. 9. Devices that display the output of computer
  4. 10. Transparent material
  5. 12. Used to connect computer to the internet
  6. 15. Light bounces back from a surface
Down
  1. 1. process of heat transfer through fluids
  2. 2. When light is blocked by an object
  3. 3. mirror that forms virtual image
  4. 5. Material that doesn’t allow light to pass through easily
  5. 6. device used to enter data
  6. 8. Unit of heat energy
  7. 11. Brain of the computer
  8. 13. Organ used for hearing
  9. 14. vibrating object produces it