CK-12 Physical Science Concepts - For Middle School

5.82. Why Earth Is a Magnet http://www.ck12.org

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At the following URL, watch the video to gain a deeper understanding of the production of Earth’s magnetic field.
Then write three points that extend the content of this article.

http://www.youtube.com/watch?v=8_P4WpxUYq4

MEDIA

Click image to the left for use the URL below.

URL: http://www.ck12.org/flx/render/embeddedobject/82387

Review

1. How did Gilbert show that Earth is a magnet?


2. Which would be a better model of Earth’s inner structure: a peach or an orange? Explain your answer?


3. Explain why Earth generates a magnetic field.