What Makes Earth’s Magnetic Field Change Direction?

What Makes Earth’s Magnetic Field Change Direction?

Assessment

Interactive Video

Science, Geography, Physics

11th Grade - University

Hard

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The video explores Earth's magnetic field reversals, explaining the Dynamo theory and the role of Earth's core. It discusses how scientists study these changes using volcanic rocks and the potential link between plate tectonics and field reversals. Recent research suggests a pattern between subduction and reversals, with randomness in the process. The video concludes that Earth's magnetic field can reverse without external triggers like asteroids.

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What new insight or understanding did you gain from this video?

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