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Ch 8: Earth's Internal Structure

About This Chapter

Explore theories on how the earth was formed in these video lessons. Refresh your understanding of the forces that shape the planet, learn about the earth's layers and see how scientists study its interior structure.

Earth's Internal Structure - Chapter Summary

Use the lessons in this chapter to review scientific ideas on how our planet was created. Examine the internal and external forces that shape our planet, and explore earth's layers and see how scientists examine them. Another lesson looks at the magnetosphere and what it does. After watching these lessons, you should be able to:

  • Tell about theories of the earth's beginnings
  • Explain the forces that shape the planet
  • Describe the crust, mantle and core of the earth
  • Identify ways scientists examine the interior of the earth
  • Define the magnetosphere

You can watch these lessons on a computer, tablet or smartphone, anytime you have a few minutes to spare. Every lesson is followed by a short quiz that lets you test your knowledge. There are also written transcripts with the videos so you can read along with the instructor.

5 Lessons in Chapter 8: Earth's Internal Structure
Test your knowledge with a 30-question chapter practice test
Formation of the Earth: Theories

1. Formation of the Earth: Theories

In this lesson, the theory of how the planet Earth formed will be discussed. This includes looking at how it differentiated into three layers, how it formed its atmosphere, water, and land features, and how it continues to evolve today.

The Dynamic Earth: Internal & External Forces that Shape Earth's Surface

2. The Dynamic Earth: Internal & External Forces that Shape Earth's Surface

There are many geologic processes that shape the surface of the Earth. Not only do they build and destroy a variety of landscapes, but they also give us clues to the interior of the Earth and the forces that exist there.

Earth's Internal Layers: Crust, Mantle & Core

3. Earth's Internal Layers: Crust, Mantle & Core

Earth is made up of several different layers, each with unique properties. In this video lesson, you will identify each layer of Earth and how it relates to Earth as a whole.

How Scientists Study Earth's Interior Structure

4. How Scientists Study Earth's Interior Structure

We can't see what Earth's interior is made of, but scientists are able to study it in other ways. In this video lesson, you will learn how seismic activity helps us understand and describe the inner layers of the earth.

Magnetosphere: Definition & Facts

5. Magnetosphere: Definition & Facts

In this lesson, you'll learn about how the northern lights are formed thanks to the magnetosphere and solar wind. Of course, you'll learn a lot more, including what the Van Allen belts, magnetopause, and magnetotail are.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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