Crossword for stem.

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Across
  1. 4. imaginary line which the earth rotates around.
  2. 6. orbit of the earth
  3. 7. there is a northern and southern.
  4. 8. times how much bigger is the sun then the earth
  5. 9. the movement the earth takes
  6. 10. When the days and nights are equal
Down
  1. 1. Moon appears darkend
  2. 2. sun at either it’s highest or lowest point making the days longer or shorter
  3. 3. Days it take for the earth to make a full orbit around the sun
  4. 5. movement of the earth