Geology

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Across
  1. 3. Behaves like caramel
  2. 4. Thinnest layer of our Earth
  3. 7. Weighted the Earth's mass
  4. 8. The study of Earth's physical structure
Down
  1. 1. Seasons are a result of this
  2. 2. Causes the tides
  3. 5. Gives us day and night
  4. 6. Responsible for the Earth's magnetic field