SCIENCE

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Across
  1. 2. a space rock
  2. 6. a wave that travels through space.
  3. 10. the amount of times a wave passes in a given time period
  4. 12. what does the human eyes see when you combined all the color of the spectrum
  5. 14. the transfer of energy from one space
  6. 17. wave that moves parallel to its medium
  7. 19. what does the human eyes see when theres no colors at all
  8. 20. heat traveling through empty space
Down
  1. 1. heat rises, cold/cool sinks
  2. 3. the distance between one crest to the next
  3. 4. part of the eye that sends information
  4. 5. a large mirror for light
  5. 7. clear surface of eye that allows bends light into lens
  6. 8. a source to see in darkness
  7. 9. matter that waves travel through
  8. 11. heat transfer by direct touch
  9. 13. black hole in the eye
  10. 15. wave that is a type of machine wave
  11. 16. a large source of light
  12. 18. wave a that needs a medium to trave