Invertebrates

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Across
  1. 2. The curved path Earth follows around the Sun
  2. 4. Force that pulls Earth and the moon toward each other
  3. 5. A type of cycle that is a predictable and repeating event due to the movement of objects in space like the Earth or moon.
  4. 7. A day that either has the longest or shortest amount of daylight in a year, depending whether its summer or winter
  5. 9. Movement of ocean water caused mostly by the moon’s gravity
  6. 10. Type of cycle caused by the moon’s revolution around Earth
  7. 11. Earth spins around this invisible line
Down
  1. 1. Earth's angle that causes the seasons
  2. 3. The movement of one object in a circular path around another
  3. 6. The spinning of Earth that causes day and night
  4. 8. Day of the year with nearly equal day and night everywhere