space puzzle

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Across
  1. 3. For _____ hours of the day, our side of the Earth faces the sun. This causes shadows.
  2. 5. The Earth is spinning on an axis. This is what causes ____ and night.
  3. 7. The Earth ____ around the sun
  4. 8. The sun is a _____ sized star. constellations Stars form clusters called ______.
  5. 9. It takes the Earth ________ hours to do one rotation on its axis.
  6. 14. The pull of gravity is called your ______.
  7. 15. When the moon looks like it is getting bigger, it is a ______ moon.
  8. 16. ______ on the Earth change during the day due to the rotation and tilt of the Earth.
Down
  1. 1. _____ is a force of attraction between two or more objects.
  2. 2. Earth’s orbit around the sun is what causes the ____.
  3. 4. There are _____ moon phases.
  4. 6. There are _______ seasons.
  5. 10. When the moon looks like it is getting smaller, it is a ______ moon.
  6. 11. The Earth is ______ on its axis at an angle of 23.5 degrees. This is what causes the amount of daylight we get during the year.
  7. 12. Different constellations are visible at different times of the year due to the earth’s _____ path around the sun.
  8. 13. The Earth rotates on an _____.
  9. 16. The Earth’s gravity is what keeps us from floating off into _____.