Across
- 4. Boundary where plates slide past each other
- 6. Supercontinent that existed 160 million years ago
- 8. When a rock breaks into pieces with jagged edges
- 10. Uses sound waves to map the seafloor
- 11. A mass of slowly moving ice
- 13. The crust and the solid upper mantle
- 15. This country was formed by two divergent plates
- 17. The lithosphere is broken up into large areas called ______
- 18. This kind of igneous rock is made from cooled lava
- 20. Measures the intensity of an earthquake
- 22. The center of the Earth: A solid layer made mostly of iron and nickel
- 25. This deepsea valley is the deepest point in the ocean
- 26. When a mineral breaks into pieces with smooth surfaces
Down
- 1. When a heavier crust collides and goes under a lighter crust
- 2. The color of the powdered form of a mineral
- 3. Boundary where plates go toward each other
- 5. Natural substances that make up rocks
- 7. Scientist who studies Earth
- 9. This process breaks rocks
- 12. This kind of rock has changed its form due to heat and pressure
- 14. This property of minerals is measured by the Mohs Scale
- 15. This kind of igneous rock is made from cooled magma
- 16. When rocks get moved by wind, gravity, or water
- 19. What makes the plates move
- 21. Mountain range where Mount Everest can be found
- 23. This theory says that an old supercontinent split apart
- 24. Boundary where two plates move apart