Telescopes CK-12 Crossword Puzzle

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Across
  1. 3. horizontal distance between corresponding points on two adjacent waves, such as the distance between two crests or two troughs
  2. 5. number of waves that pass a given point each second
  3. 6. type of electromagnetic radiation with wavelengths between radio waves and infrared light; generally considered to be high-frequency radio waves
  4. 7. energy transmitted through space as waves
  5. 9. type of electromagnetic radiation that has wavelengths shorter than visible light but longer than X-rays and that harms living things
  6. 12. type of electromagnetic radiation that has the longest wavelengths
  7. 13. type of optical telescope that uses mirrors to collect and focus visible light
  8. 16. telescope that is placed into orbit around Earth above Earth’s atmosphere
  9. 17. type of telescope that collects radio waves instead of visible light
Down
  1. 1. distance light can travel in one year; equal to 9.5 trillion kilometers
  2. 2. device that breaks light into different wavelengths, or colors
  3. 4. object in space that orbits a star and has cleared its orbit of smaller objects
  4. 7. total range of wavelengths of electromagnetic radiation
  5. 8. type of optical telescope that uses lenses to collect and focus visible light
  6. 10. type of electromagnetic radiation that has wavelengths between ultraviolet and infrared light and that can be detected by the human eye
  7. 11. type of electromagnetic radiation that has the shortest wavelengths
  8. 14. group of stars that appear from Earth to form a recognizable pattern
  9. 15. type of electromagnetic radiation that has wavelengths longer than visible light but shorter than radio waves and that humans can feel as heat