Astronomy

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Across
  1. 3. Earth's seasons are caused by_______
  2. 5. The sun rises in the _______
  3. 7. The largest of the inner planets
  4. 11. What phase does the moon have to be during a lunar eclipse?
  5. 12. Why does the moon have phases?
  6. 14. During neap tides, tides are_______________
  7. 16. Why do we have day and night?
  8. 19. The shortest day of the year is called_________
  9. 20. Why do we only see one side of the moon?
  10. 21. When the moon is waning, it appears to be__________
  11. 23. Our sun is a huge ball of
  12. 24. The outer planets are called _____giants
Down
  1. 1. What shape is Earth's orbit around the sun?
  2. 2. How long does it take for the Earth to revolve around the sun?
  3. 4. Why do Australia and the United States have opposite seasons?
  4. 6. Our atmosphere is mostly a mix of what gases?
  5. 8. Why are total solar eclipses rare?
  6. 9. Mercury, Venus, Earth, Mars
  7. 10. What has the strongest influence on the tides and why?
  8. 12. All of the planets______ around the sun
  9. 13. What causes the tides?
  10. 15. Days which have equal hours of daylight/night are called____________
  11. 16. We have high and low tides every day because______________
  12. 17. During a solar eclipse we cannot see the
  13. 18. The sun's radiation from ________ warms our planet
  14. 22. The four inner planets are______