Test Review

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Across
  1. 6. The movement of weathered rock and soil by wind, water, ice, or gravity.
  2. 9. Imaginary line located at approximately 23.5° South latitude.
  3. 10. A bend or curve in Earth's crust.
  4. 12. Large pieces of Earth's lithosphere that slowly move.
  5. 14. A plate boundary where two plates move toward each other.
  6. 15. A plate boundary where two plates move apart.
  7. 17. Earth's movement on its axis that takes about 24 hours.
  8. 19. Imaginary line located at approximately 23.5° North latitude.
  9. 20. The breaking down of rocks at Earth's surface.
Down
  1. 1. Earth's movement around the Sun that takes about 365 days.
  2. 2. Innermost layer of Earth.
  3. 3. Area around the Pacific Ocean with many volcanoes and earthquakes.
  4. 4. Layer of Earth located between the outer core and the crust.
  5. 5. The deepest known point on Earth, located in the Mariana Trench.
  6. 7. Percentage of the Solar System's mass made up by the Sun.
  7. 8. A plate boundary where two plates slide past each other.
  8. 11. A crack or break in Earth's crust where movement occurs.
  9. 13. Theory that Earth's continents were once joined together and slowly moved apart.
  10. 16. Sudden shaking of Earth's surface caused by movement along a fault.
  11. 18. A series of large ocean waves usually caused by an underwater earthquake.