How Does a Volcano Erupt?

A volcano erupts when pressure inside the Earth becomes too much. Imagine you're filling a bottle with soda and shaking it up, it makes bubbles and fizz. Inside a volcano, hot rock (called magma) moves upward like bubbles in a fizzy drink. When the lid of the bottle pops off, it's like an eruption! The magma comes out as lava, smoke, and ash, making a big mess on top.

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Examples

  1. A volcano is like a shaken soda bottle that explodes when the lid pops off.
  2. When you blow up a balloon too much, it bursts, like a volcanic eruption.
  3. If you leave a soda in the fridge for a long time and then shake it, it can explode all over your hands.

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Categories: Science · volcanoes· earth science· eruptions · Text is available under the Creative Commons Attribution-ShareAlike License.