Semester A Wrap Up Crossword

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Across
  1. 4. Shaking ground due to movements in the Earth's crust
  2. 5. All living things on Earth
  3. 6. Being eroded by wind, water, or other natural agents.
  4. 7. All of the water on Earth
  5. 9. The outermost shell of Earth
  6. 12. Formed under the Earth's crust
  7. 16. Formed outside of the Earth's crust
  8. 19. All of the gas on Earth
  9. 20. The introduction of harmful materials into the environment
  10. 21. All rocks and soil on Earth
  11. 22. When two tectonic plates come together
  12. 23. A stream where water is transported in the ocean
  13. 24. A natural solid inorganic substance
  14. 25. A mountain or hill having a crater in the middle with lava
Down
  1. 1. The ability to be maintained
  2. 2. When rocks are subjected to high heat
  3. 3. The first step of the scientific method
  4. 8. When two tectonic plates move away from each other.
  5. 10. When two tectonic plates slide past each other
  6. 11. Water bodies with low salt concentration
  7. 13. When the environment becomes enriched with nutrients
  8. 14. The layer under the crust
  9. 15. Formed by the cooling of molten rock
  10. 17. Wearing down or breaking of rocks
  11. 18. Sediments cemented to form rock