Grade 4 - Revision

​Social Studies

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Unit 2:

​Lesson 5

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Mountains

by Mr.Rayan

​What are Mountains?

​A Mountain is a landform that rises above the surrounding land.



Mountains are made from rocks and earth.



Small mountains are called hills.

​What do Mountains look like?

​Mountains usually have steep, sloping sides and sharp or slightly rounded ridges and peaks. 


Mountains can be rocky and barren. Some have trees growing on their sides and very high mountains have snow on their peaks.

​TYPES OF MOUNTAINS

1 _ ​Fold Mountains are formed when two plates run into each other. The force of the two plates running into each other causes the Earth's crust to crumple and fold.

​TYPES OF MOUNTAINS

2 - Volcanic Mountains are tall, cone-shaped mountains that are formed by volcanoes.

Volcanoes are openings in the Earth's crust through which hot molten rock called magma can escape from deep inside the Earth. If this molten rock makes it to the surface and keeps flowing like a liquid, it's called lava.

• Mount Rushmore is a very famous monument located in the United States.

• Mount Rushmore is made up of huge sculptures of the faces of four important presidents of the United States.

• The reason these faces were carved into the mountain was to honor these presidents and their contributions to the United States.

• Mount Rushmore National Memorial sees just over 2 million visitors every year

Mount Rushmore

• Mount Everest is the tallest mountain on Earth.

• Mount Everest is a part of a mountain range called the Himalayas.

• Mount Everest doesn’t just sit in one country. It lies between Nepal and Tibet.

• Because Mount Everest is so big, when climbers get near the top, the air gets very thin. There’s less oxygen up there, which makes it harder to breathe.

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​Mount Everest

K2

• K2 is the world’s second highest peak.second only to Mount Everest.

•  K2 has more than one name. According to where you are and who you are talking to, K2 might be called Mount Godwin Austen, Qogir Feng, Dapsang, or Chogori

• The number of people to have reached the top constitutes only a small fraction compared with how many have successfully climbed Mount Everest.