Unit 5-8

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Across
  1. 2. Those parts on the outside of a body or structure.
  2. 3. A deep valley in ocean floor.
  3. 4. age The age of one thing compared to another.
  4. 6. Describes a kind of thing that is no longer found on Earth.
  5. 9. An earth process that threatens to harm people and property.
  6. 11. The remains or traces of an organism that lived long ago.
  7. 14. Materials found in nature that people and other living things use.
  8. 16. One of the seven largest land areas on Earth.
  9. 17. An area of land that is very dry.
  10. 18. A group of parts that work together to do a job for the body.
  11. 20. The remains or traces of an organism that lived on land long ago.
  12. 22. Any material that can be used to satisfy a need.
  13. 23. The breaking down of rocks on Earth’s surface into smaller pieces.
  14. 24. A resource that can be replaced within a reasonable amount of time.
  15. 25. The dropping or settling of eroded materials.
  16. 26. The height of land above sea level.
Down
  1. 1. Those parts on the inside of a body structure.
  2. 5. The remains or traces of an organism that lived in water long ago.
  3. 7. Waste products that damage an ecosystem.
  4. 8. A disadvantage or problem.
  5. 10. A dense forest found in regions with high heat and heavy rainfall.
  6. 12. The part of a map that compares a distance on a map to distance in real world.
  7. 13. Special structures that send information about the environment from different parts of the body to the brain.
  8. 15. A body part that is made of smaller parts that work together to do a certain job.
  9. 19. A resource that once used cannot be replaced in a reasonable amount of time.
  10. 21. The process of moving sediment from one place to another.