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Book 24, Question 33 · Video

What are nematodes, and where do they live?

Video · 1:57 · Crafty Clover explains, from A Million Whys Book 24

Nematodes are tiny roundworms, mostly smaller than a grain of salt. A handful of soil can contain thousands of them. Some eat bacteria or fungi, some eat other tiny animals, and a few feed on plant roots. Most are helpful, helping to recycle nutrients.

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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. What are nematodes, and where do they live?

The Big Idea

Some of the most common animals on Earth are almost invisible. They are tiny roundworms called nematodes. And they live almost everywhere!

Super Small

Step one: Super Small. Nematodes are tiny roundworms, mostly smaller than a grain of salt. A handful of soil can contain thousands of them.

Many Menus

Step two: Many Menus. Some eat bacteria or fungi, and some eat other tiny animals. A few feed on plant roots.

Helpers

Step three: Helpers. Most nematodes are helpful, helping to recycle nutrients. Scientists study one kind in labs to learn how animal bodies develop.

A Closer Look

Let's take a closer look! Some eat bacteria. Some eat fungi. Some hunt other tiny animals. A few nibble roots.

Quick Facts

Quick facts! Nematodes live almost everywhere on Earth, from soil to seabeds. A single handful of soil can hold thousands of nematodes. One kind of nematode helps scientists learn how bodies grow. Most nematodes are thin and see through.

Think Like a Scientist

Now, think like a scientist! Draw a nematode as a very thin, clear worm. Next to it, draw a grain of salt. Which one is bigger? Why is a nematode so hard to see without a microscope? Share your idea with a grown-up.

Outro

Nematodes are tiny roundworms, mostly smaller than a grain of salt, that live almost everywhere. Most are helpful, eating bacteria, fungi, or tiny animals and recycling nutrients. 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!

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