Rotation and Revolution

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Across
  1. 5. The movement of Earth around the Sun causing seasons.
  2. 6. The curved path of a celestial object around a star or planet.
Down
  1. 1. When the Sun is at its highest or lowest point at noon.
  2. 2. When day and night are of equal length.
  3. 3. An imaginary line around which Earth rotates.
  4. 4. The spinning of Earth on its axis causing day and night.