The Sun, Earth & Moon

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Across
  1. 2. Moon looks red because the moon is directly behind the Earth
  2. 3. moon first phase of the moon
  3. 5. number of waves that pass a fixed place in a given amount of time
  4. 6. includes visible light, radio waves, microwaves, X rays
  5. 7. moons gravitational pull effects the ocean tides
  6. 10. uses lenses, mirrors, cameras to collect electromagnetic radiation
  7. 12. eclipse occurs when the moon passes behind the Earth
  8. 13. gibbous moon see more than Half the right side of the moon
  9. 16. distance between peaks on a wave
  10. 17. robotic probes have been sent directly to planets to observe and land to collect data
  11. 19. crescent moon sunlit side of the moon is on the right
Down
  1. 1. when the sun is overhead at its farthest distance
  2. 4. the midway point between solstices
  3. 8. eclipse occurs when the moon passes directly between the Sun and The earth
  4. 9. tides when the Sun, Moon and Earth are in a straight line
  5. 11. formed when objects from space crash into the moon
  6. 14. quarter moon often called 'half moon'
  7. 15. tides when the moon is at the right angle to the Sun
  8. 16. gibbous the left side of the moon is visible
  9. 18. moon the moon is completely illuminated