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Inside a Volcano
Age 9 · Science
A volcano is a mountain with hot melted rock inside it. When the melted rock pushes up through a narrow tube, it bursts out of the top as an eruption.
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Age 9: open this week
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In the picture
- Magma chamber, the pool of hot melted rock deep under the volcano
- Conduit, the narrow tube that carries magma up to the top
- Eruption, the ash, gas and lava bursting out of the crater
Examples
- Mount Etna in Italy throws out ash and lava many times a year.
- A shaken fizzy drink sprays out of the bottle neck, like magma rushing up a conduit.
Key takeaways
- Melted rock is called magma underground and lava once it reaches the surface.
- Magma rises up the conduit because it is lighter than the rock around it.
Quiz: Inside a Volcano (Age 9)
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Just before a volcano erupts, where is the hot melted rock?
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What is the narrow tube inside a volcano for?
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During an eruption, what bursts out of the top of a volcano?
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