science 8 Ch 4

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Across
  1. 2. a writing tool that you can use to make a waveform
  2. 7. the number of cycles something makes in a second
  3. 8. something you'd see in a mirror
  4. 11. a visual record of a wave
  5. 12. a type of electromagnetic radiation that has the highest wavelength and lowest frequency
  6. 13. water moving up and down do to wind force and gravity
  7. 15. a very common light seen at a specific time for multiple hours
  8. 18. very bottom of a wave
  9. 19. very top of a wave
Down
  1. 1. the type of wave that allows humans and animals to hear
  2. 3. has the lowest wavelength and highest frequency
  3. 4. causes white light to turn into colors
  4. 5. something on a tree
  5. 6. the matter a wave travels through
  6. 9. a type of electromagnetic radiation that, relative to light
  7. 10. a group of colors produced by white light hitting a prism
  8. 14. the height of a wave from its rest position to the crest
  9. 16. the unit used to measure frequency
  10. 17. a color with a wavelength that's 400 nm
  11. 20. a color with the wavelength of 700nm