Vocabulary
Moving air
Wind
Retaining walls are most often used where?
Gardens
What is the difference between weathering and erosion?
Weathering breaks the rocks down, or "makes the mess", and erosion sweeps or blows those pieces away to "clean the mess."
These can be used during hurricanes to help provide protection against erosion and flooding.
Sandbags
A liquid that every living thing needs to survive
Water
Solution means...
The answer to a problem
What are the three main causes of erosion?
You must get all 3 correct to earn these points.
Water, wind and ice
Retaining walls are built using what materials?
Bricks and stones
The solid part of the surface of Earth
Land
The name of one of the worst cases of erosion in the United States was called...
Erosion can only occur over millions and millions of years
True or False
False
What does the word "drought" mean?
A period of extreme dryness, no rain.
The movement of sediment from one place to another by wind, water or other natural forces.
Erosion
One of the worst cases of erosion happened in what year?
1930s
What are the three different types of weathering?
You must get all 3 correct to earn these points.
Chemical, mechanical, biological
Trees help to protect against these two types of erosion.
Wind and water
When rocks slowly break down into smaller pieces over time because of things like wind, rain, ice, plants and animals.
Weathering
What famous landmark in the United States was created by weathering?
The Grand Canyon
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What were the three main causes of the large dust storm that happened in the 1930s?
You must get all 3 answers correct to earn all points.
Too much farming, high wind erosion and a drought.