Earth's magnetic field has reversed polarity multiple times throughout the history of the Earth. Research how this is learned and what we believe the interior of the Earth looks like and how it functions. What do we think causes Earth's magnetism? Below write a 3 paragraph essay. Paragraph 1: Explain what is thought to cause Earth's magnetism and how we know Earth's magnetic field has flipped over time. Paragraph 2: Explain how we think new rock was formed in the oceans and how this provides evidence of Earth's interior. Paragraph 3: Summarize everything you saw in the models today to write a conclusion paragraph that explains how the evidence above supports your answer to the question.

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