Answer the following questions on a sheet of paper using the websites above.
- Name the four layers of the Earth in order from the outside to the center of the Earth.
- How thick is each layer?
- What are the parts of the crust that move around on the surface of the earth?
- What causes the mantle to "flow"?
- What are the two main metals that make up the outer and inner core?
- What is the Lithosphere?
- What is the Atmosphere?