Mountains are like huge folds in Earth’s rocky coat

Imagine Earth wears a big rocky blanket. Sometimes that blanket gets pushed and crumpled. When it crumples, big bumps rise up — those bumps are mountains.

Step-by-step (very simple)

1. Earth’s outside is in pieces: The outside of Earth is made of big plates — like puzzle pieces.
2. Plates push together: When two plates push toward each other, the rock between them can bend and fold instead of breaking.
3. Folds make mountains: The bent-up rock makes a high place — a mountain. This is like folding a rug so a bump stands up.
4. They last a long time: Mountains stay tall for a very long time — much longer than a person’s life. Often they stand for thousands or even millions of years. But wind, rain, ice, and rivers slowly wear them down over a long time.

Quick, fun activity

Try this with an adult: lay a towel or rug on the floor. Slowly push the ends toward each other. Watch a fold appear — that bump is like a mountain. Or fold a piece of paper gently in the middle to make a paper 'mountain.'

One last cool fact

Some mountains rise very little each year, but over a long time they can grow really big. Even when they stop growing, they still stand for ages because rock is strong.

Do you want another activity or a drawing to show how the plates push?