study gudie

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Across
  1. 2. spin of a body on its axis
  2. 7. beneath the crust
  3. 8. atmosphere is made up of 78% what
  4. 9. path around another body in space
  5. 11. part of the earth
  6. 13. that the earth's continents were once one
Down
  1. 1. object resistance in speed
  2. 3. atmosphere is made up of 21% what
  3. 4. plane curve
  4. 5. traveled around another body in space
  5. 6. use this to make food
  6. 10. of the earth is made up of
  7. 12. outermost layer of earth