Earth in Space Lessons 1-10

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Across
  1. 4. Solar ________________ causes differences in the intensity of light reaching Earth’s surface throughout the year
  2. 7. The moon’s orbit is not circular, it’s what we call an _________________ shape. Like an oval
  3. 9. The moon’s tilt is ____________ degrees compared to Earth's
  4. 10. People like the Mayans and Ancient Scotland used moon phases as a sort of ______________, to keep track of time/dates
  5. 12. The Moon is __________ during a lunar eclipse
  6. 13. Earth’s atmosphere is ____________ miles thick
  7. 15. The envelope of gases surrounding the earth
  8. 17. The color changes in the sky are due to factors in the atmosphere like dust, clouds, ____________, etc.
  9. 18. There are ____________ moon phases
  10. 19. Unlike sound, __________ can travel through empty space
  11. 20. ________________Eclipse: an eclipse in which the sun is obscured by the moon
Down
  1. 1. When moonlight is decreasing on the surface of the moon
  2. 2. The scientific name for the North Star
  3. 3. The moon turns a _______ color during a lunar eclipse
  4. 5. When moonlight is increasing on the surface of the moon
  5. 6. When it is midday (noon), the Sun’s light has ______________ atmosphere to travel through
  6. 8. The longest/shortest days of the year are called the _____________________
  7. 11. Earth's _______________ is the cause of color changes in the sky
  8. 13. The moon lights up because of the ______
  9. 14. The Sun sets in the ___________
  10. 16. a phenomenon occurring just before and after the summer solstice, in which the sun sets in alignment with the streets that run east to west on Manhattan's street grid
  11. 19. _______________ Eclipse: an eclipse in which the moon appears darkened as it passes into the earth's shadow