Earth and Space Science

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Across
  1. 2. To reuse materials after they have been changed into another form
  2. 5. lit portion of the moon grows larger
  3. 7. an area of land drains or "sheds" water into a specific body of water
  4. 11. moving in a fixed path around an object
  5. 12. using resources in a way that they will continue to be available in the future
  6. 15. patterns created by groups of stars
  7. 16. waste, chemicals, or other harmful substances that dirty or contaminate the environment
Down
  1. 1. process in which earthen materials are worn away and transported by natural forces
  2. 3. protection of nature and Earth's natural resources
  3. 4. eclipse where the moon is between the sun and the Earth
  4. 6. believed the sun was the center of the universe
  5. 7. lit portion of the moon grows smaller
  6. 8. instrument that makes distant objects appear larger
  7. 9. spinning or turning on an axis
  8. 10. Ptolemy believed the _____ was the center of the universe
  9. 13. the ____ of Earth's axis causes the seasons
  10. 14. eclipse where the moon seems darker because it's behind the earth