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Book 24, Question 144 · Video

How can people stop soil from washing or blowing away?

Video · 1:54 · Crafty Clover explains, from A Million Whys Book 24

Bare soil is easily carried away by rain and wind, which is called erosion. People protect it with plants and mulch. Roots hold the soil, and leaves soften raindrops. Farmers plant cover crops, leave stalks in fields, and plant rows of trees as windbreaks.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How can people stop soil from washing or blowing away?

The Big Idea

Rain and wind can carry soil away. That is called erosion. But people have smart ways to protect it!

Plants and Mulch

Step one: Plants and Mulch. People protect bare soil with plants and mulch. Roots hold the soil, and leaves soften raindrops.

Farm Tricks

Step two: Farm Tricks. Farmers plant cover crops, leave stalks in fields, and plant rows of trees as windbreaks. These slow down wind and water.

Lessons Learned

Step three: Lessons Learned. In the 1930s, dust storms hit the Prairies. Farmers learned new ways to hold the soil.

A Closer Look

Let's take a closer look! Plants hold soil. Mulch covers it. Windbreaks block wind. Terraces slow water.

Quick Facts

Quick facts! Terraces on steep hills work like giant steps that slow down running water. Stalks left in fields help hold soil. Dust storms in the 1930s blew away lots of prairie soil. Rows of trees block the wind.

Think Like a Scientist

Now, think like a scientist! Set up two soil trays on a slope, one covered with grass and one bare. Spray the same amount of water on each. Catch the runoff in cups. Which runoff is muddier? Which tray lost more soil?

Outro

People stop soil from washing or blowing away with plants and mulch, cover crops, stalks left in fields, windbreaks, and terraces. The 1930s dust storms taught farmers these lessons. Science is amazing! The world under your feet is full of surprises. Keep digging into big questions, and keep exploring with me! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

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