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