The Sun and Earth Vocabulary

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Across
  1. 2. half of a sphere, or half of Earth
  2. 6. the effect of gravity on another object
  3. 7. the path of an object in space
Down
  1. 1. a shape that looks like a stretched circle
  2. 3. an imaginary line circling Earth between the North and South Pole
  3. 4. the first day of spring and fall when both hemispheres have the same amount of daylight and darkness
  4. 5. the first day of winter and summer; also the shortest and longest day of the year in the Northern Hemisphere