Unit 4 Review

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Across
  1. 1. occurs when the moon casts a shadow on the Earth
  2. 3. a process in which mined land is restored with soil and replanted with vegetation
  3. 4. when the moon become more illuminated each night
  4. 5. occurs when the Earth casts a shadow on the moon
  5. 8. all organisms of the same species that live in the same area
  6. 11. the spin of an object around its axis
  7. 14. part of the environment supplies necessary or useful materials for living things
  8. 16. when the Earth's axis is tilted neither towards nor away from the sun
Down
  1. 2. amount of land and water required to supply demanded resources
  2. 6. when the moon becomes less illuminated each night
  3. 7. when Earth's axis is tilted directly toward or away from the sun
  4. 9. the development of towns and cities on previously natural areas
  5. 10. an attractive force dependent on mass and distance
  6. 12. the lit part of the moon that can be seen from Earth
  7. 13. the path an object follows as it moves around another object
  8. 15. the orbit of one object around another object