What Causes a Mountain to Form?

Imagine Earth's crust like a blanket. When this blanket gets pushed up, it makes mountains! This can happen when two big pieces of Earth, called tectonic plates, crash into each other or when hot rock from deep inside the Earth pushes up through the ground.

The Basics

Mountains are like giant bumps on Earth's surface. They form in different ways: by collision, where land masses bump into each other, or by volcanic activity, where lava rises and piles up to make new mountains.

How It Works

When tectonic plates move together, the pressure builds up until it pushes rock layers upward, like a giant accordion being squeezed. Volcanoes can also create mountains when molten rock (lava) flows out and hardens on top of each other.

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Examples

  1. A toy car crashes into another, pushing both cars forward like tectonic plates pushing up Earth’s crust to form mountains.
  2. Hot lava from a volcano piles up like layers of cake, creating new land, just like Mount Fuji.
  3. When two giant blankets are pushed together, they bunch up and create bumps, like a mountain range.

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