Book 1, Question 60 · Video
Why Do Mountains Exist? Three Ways to Build a Peak!
Mountains form in different ways, and the page gives three cool reasons. Plates of Earth's crust can collide and crumple, folding land upward. Volcanoes can pile up layers of lava
Read the full answer →What Crafty Clover says in this video
Intro
Hi! I'm Crafty Clover! Let's discover something amazing. Why do mountains exist?
The Big Idea
Mountains are amazing! But how do they get there? Here's the big idea: mountains form in different ways, slowly, over millions of years. Here are three cool reasons they exist!
Plates Collide and Crumple
Reason one: plates collide and crumple. Earth's crust is made of huge pieces called plates. When two plates push into each other, the land folds and rises up. That's how the Himalayas formed, when India slowly crashed into Asia!
Volcanoes Pile Lava
Reason two: volcanoes pile up lava. When a volcano erupts, hot lava flows out, then cools and hardens into rock. Eruption after eruption, the layers build up, until they make a whole mountain!
Erosion Shapes
Reason three: wind, ice, and water wear them down. Slowly, they break rock into tiny pieces and carry it away. This is called erosion. Erosion carves peaks and valleys. Very old mountains get worn smooth and rounded!
A Closer Look
Let's take a closer look at colliding plates! The land on top crumples and folds, like a rug pushed against a wall. One plate pushes this way. The other plate pushes back. Nowhere to go but up!
Quick Facts
Quick facts! The Himalaya mountains are still rising, about half a centimeter every year! The plate pushing them moves about as fast as your fingernails grow. Mount Everest is the highest mountain on Earth, almost nine kilometers tall! Earth is always changing. Pretty cool, right?
Think Like a Scientist
Now, think like a scientist! Lay a towel, or a soft cloth, flat on a table. Put your hands on both ends. Push them slowly toward each other. Watch it fold and rise! That's like colliding plates squeezing the land. Be curious, and keep exploring!
Outro
Mountains exist because Earth's plates crumple, volcanoes pile up lava, and erosion shapes them! Keep asking, keep exploring! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!