Earth's Crust: Earth's Layers and Volcanoes

Lesson Plan - Get It!

Audio:

There are internal and external forces constantly changing the earth.

• Internal forces cause changes that happen inside the earth.
• External forces cause changes that happen outside the earth.

In this lesson, explore the layers of the earth, the internal forces that cause change, and the different types of volcanoes.

As you learn, take notes on the Graphic Organizer – Notes, found under the Downloadable Resources in the right-hand sidebar.

Watch the video below for an introduction to volcanoes. You can always pause to take notes!

Wow! That was a lot of information.

Keep adding to your notes as you answer these questions.

• What makes up the outer core of the earth?
• What is the difference between the earth's mantle and crust?
• How do scientists know that what is underneath the earth's crust differs from what is on top?

Check out Structure of the Earth! to expand on your answers.

• What are the types of volcanoes?

Check out Types of Volcanoes for more information.

• Why are volcanoes so important to scientists?

Check out Volcanologist facts for kids to discover more.

Great work completing your note sheet!

Now, move on to the Got It? section for some fun activities!