How Does The Amazing Life Cycle of Mountains | SciShow Compilation Work?

Mountains go through a big, exciting changeover time, just like how you grow from being tiny to tall.

Imagine your favorite toy block tower, when it's brand new, it stands strong and high. But if you shake the table or drop a heavy ball on it, parts of it might fall down. That’s kind of what happens to mountains over millions of years.

How Mountains Are Born

Mountains start as big piles of rocks pushed up by forces deep inside the Earth, like when two giant puzzle pieces press together and lift a mountain in the middle.

How Mountains Change Over Time

Over time, wind, rain, and even ice work hard to wear them down. It’s like how your block tower gets shorter if you keep knocking it over every day. Rocks fall off, rivers carve paths through mountains, and sometimes whole pieces of mountains break off and roll away.

But don’t worry, just like a new tower can be built from the blocks that fell down, new mountains can form again from the old ones, in a never-ending game of rock and roll.

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Examples

  1. A mountain forms when two continents collide, pushing up the land like a giant bump.
  2. Erosion slowly wears down a mountain over thousands of years, turning it into hills and valleys.
  3. Volcanoes can create new mountains by spewing lava and ash onto the Earth's surface.

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Categories: Science · mountains· geology· sci-show