How can a landslide make a lake?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How can a landslide make a lake?

The Big Idea

A falling mountainside can make a lake! Let's see how a landslide does it. It's like a natural dam.

The Slide

Step one: The Slide. If a big slide of rock and soil falls into a river valley, it can pile up and block the water. It works like a natural dam.

A New Lake

Step two: A New Lake. The river backs up behind the pile and spreads into a new lake. Lake Sarez in Tajikistan formed this way after an earthquake in 1911.

Short or Long

Step three: Short or Long. Landslide lakes can be short-lived or last for centuries, depending on how strong the blockage is. Scientists monitor them to keep nearby communities safe.

A Closer Look

Let's take a closer look! Falls down. Natural dam. Backs up. Forms behind.

Quick Facts

Quick facts! Scientists monitor landslide lakes to keep nearby communities safe. Lake Sarez formed in 1911. A natural dam of rock. Some last for centuries.

Think Like a Scientist

Now, think like a scientist! With a grown-up, tilt a tray slightly. Pour a slow stream of water down it. Build a small clay dam across the stream. Watch the water back up. Did a lake form?

Outro

When a big landslide falls into a river valley, it can block the river like a natural dam, and water backs up into a new lake. Some last only a short time and some for centuries, so scientists watch them to keep people safe. Science is amazing! Remember, every big discovery starts with a small question. Keep looking, keep learning, and keep asking why! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!