Across
- 3. a liquid layer of iron and nickel
- 5. waves produced by earthquakes that help us study the inner layers of Earth
- 6. the outermost shell of the Earth
- 8. a cycle of heating, rising, cooling, and sinking magma
- 10. a large piece of Earth's crust that moves on top of the mantle
- 11. thinner, denser crust
Down
- 1. thicker, less dense crust
- 2. a layer including the Earth's crust and upper mantle
- 4. a semi fluid layer of solid-liquid rock
- 7. a solid mass of iron and nickel
- 9. a thick, mostly solid layer that is 80% of the total mass of the Earth