How Does a Volcano Erupt and What Causes the Different Types?

A volcano erupts when hot rock and gas inside the Earth come rushing out like a magical eruption from a hidden treasure chest.

Volcanoes are like giant lava-filled bottles deep underground. When pressure builds up inside, it's like shaking a bottle of soda, eventually, pop! The lid comes off, and everything inside rushes out.

• Some volcanoes erupt gently, with flowing lava like honey. These are called shield volcanoes.
• Other volcanoes explode loudly, sending ash high into the sky. These are like composite volcanoes, and they have more powerful eruptions because of how the inside is mixed up.

Inside the Earth, different kinds of rock and gas can cause these different eruption styles, it's like having different types of magic spells in a wizard’s bag! A volcano erupts when hot rock and gas inside the Earth come rushing out like a magical eruption from a hidden treasure chest.

Volcanoes are like giant lava-filled bottles deep underground. When pressure builds up inside, it's like shaking a bottle of soda, eventually, pop! The lid comes off, and everything inside rushes out.