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Weathering and Erosion

The earth is always changing. Even mountains, valleys, and shores change. Wind, water, and chemicals make these changes happen. This is called weathering and erosion.



Weathering is when things break down. This can happen to rocks and soil. It can happen to other things too.



Ocean waves can weather rocks nearby. When the waves hit the rocks, they slowly break down the rocks. Water turning into ice can also make weathering happen. Ice grows bigger and can make rocks crack.



Erosion is when broken down things get moved away. For example, a river may move soil from one place to another. Or, wind may pick up pieces of rock and move them.



The Grand Canyon was made because of erosion. Erosion can also be dangerous. It can cause mudslides.



Weathering and erosion are a big part of why our Earth is always changing. It is important to understand them.


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Questions
What do weathering and erosion do? Pick two.


They change mountains.


They break down and move rocks.


They make clouds.


They make rivers.
How can erosion be bad?


It can cause mudslides. Mudslides are dangerous.


It can bring healthy soil to a place.


It can make a crack in a rock.


It made the Grand Canyon.
What is an example of erosion?


The rain breaks down a rock.


A river carries away rocks and soil.


It snows outside.


The Grand Canyon gets very hot.
Please answer all questions

Answer 1

1) They change mountains.
They break down and move rocks.

2) It can cause mudslides. Mudslides are dangerous.

3) A river carries away rocks and soil.