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Asthenosphere facts for kids

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The asthenosphere is part of earth's mantle. It is about 100 km to 350 km under the surface. It is the lower part of the upper mantle, and behaves as a hot viscous liquid.

It consists of hot, weak material that can be deformed like silly putty. That means it is capable of gradual flow. It is under the lithosphere.

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Asthenosphere Facts for Kids. Kiddle Encyclopedia.