Across
- 2. Field are surrounded by an invisible magnetic field.
- 4. makes up 84% of Earth's volume.
- 5. first layer
- 7. Waves They are waves of energy that travel through the Earth, both on the surface and through it.
- 8. Crust . It's thinner, denser, and simpler in structure than the continental crust.
- 9. Layers The very center of the Earth is the core, which is mostly iron and nickel. The inner core is solid and measures 1,516 miles in diameter.
Down
- 1. Currents is heat transfer through the movement of liquids or gases
- 3. crust varies in thickness between 6 and 43 miles (25 and 70km).
- 6. between 700° and 1,300° Celsius (1,292° and 2,372° Fahrenheit).