Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

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Try Your Hand at Melting Rocks

Most magma that reaches the surface in volcanic eruptions comes from a part of Earth's mantle called the asthenosphere. The asthenosphere is a layer of solid rock that is near its melting point. Turning this solid rock into liquid magma means changing its temperature, pressure, and water content. Try your hand at melting rock to create magma.

The first thing to try changing is the temperature. Your rock is a toasty 1,500 degrees Celsius, but it's still solid.

Click on the words "lower" or "raise" to change the temperature your rock is subjected to inside Earth.


"Volcanoes" is inspired by programs from Earth Revealed,
a video series in the
Annenberg Media Collection.

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