Answer the following questions on a sheet of paper with your partner. If you need to look back to find the answers use the page titles located directly under the questions to help you. When you finish the questions click on the Earth icon to return the program to the beginning.

  1. Name the four layers of the Earth in order from the outside to the center of the Earth.

  2. What causes the mantle to "flow"?

  3. What are the two main metals that make up the outer and inner core?

  4. Describe in your own words how the Earth's layers were formed.
    "The Four Layers" will help you.
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