A volcano explodes when pressure builds up inside it and then suddenly lets go. Think of a bottle filled with soda, if you shake it up and then open it, the carbon dioxide bubbles rush out in a fizz. A volcano is like that bottle, but much bigger! Magma moves upward, gas builds up, and eventually everything bursts out as lava and ash.
Examples
- A soda bottle exploding when you open it after shaking is like a small volcano.
- A pressure cooker hissing and popping when the lid is lifted is similar to what happens inside a volcano.
- Bubbles in a lake bursting out suddenly are like tiny volcanic eruptions.
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Categories: Science · volcanoes,earth science,geology