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🌱 Stopping Erosion

Wind and water can carry soil and rock away, bit by bit. That is called erosion. Discover the clever ways people and plants slow it down and keep the land in place.

3
lessons
~15 min
to learn
🔬 Science
subject
Ages 6–12
level
Start the course →

What you’ll learn

  1. What Is Erosion?Define erosion and understand that water and wind can move soil and rock.Erosion is when water, wind, or ice carry soil and rock away and drop them somewhere new. It happens a little at a time. Water runs downhill and picks up soil, while wind blows away dust from dry, bare ground.
  2. Ways to Slow It DownExplain how plants and barriers slow erosion and keep soil in place.Plant roots grip the soil like little anchors, so planted land erodes far slower than bare land. People also build barriers like sandbag walls to block rushing water. Choosing to plant and protect the ground helps stop erosion.
  3. Protecting the LandMatch different places to the best ways to protect them from erosion.Big rocks along river banks and coasts take the hit from the water and protect the soil. On steep hills, flat steps called terraces slow the water down. Matching the right fix to each place keeps the soil safe from erosion.

Questions this course answers

What is erosion?

Erosion is when water, wind, or ice carry away soil and rock and drop it somewhere new.

How does water cause erosion?

When rain runs downhill or rivers flow, the water picks up loose soil and carries it away.

How do plant roots help stop erosion?

Roots reach into the ground and hold the soil, like many little anchors, so it does not wash or blow away.

Which hill will keep its soil better in the rain?

A hill covered in plants keeps its soil because the roots hold it in place, while a bare hill washes away.

Why do people put big rocks along a river bank?

The rocks take the force of the moving water and waves, so the soft soil behind them is not washed away.

What are the flat steps cut into a steep hill called?

Flat steps cut into a hillside are called terraces, and they slow the water so it does not grab the soil.

Grounded in trusted sources

  • United States Geological Survey (USGS)
  • National Geographic Kids
  • Britannica Kids
  • USDA Natural Resources Conservation Service

Every Wunder lesson is built from real, reputable sources — never invented.

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