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Urea

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A close-up of urea granules, a common organic compound used in various applications.

What Is Urea?

Urea is a special kind of material that our bodies make. It helps us get rid of extra things we don’t need. It is found in our urine, which is the liquid we pass when we go to the bathroom. Urea is a white, smell-less solid that mixes easily with water.

How Our Bodies Use Urea

Our bodies make urea in the liver. The liver changes ammonia and carbon dioxide into urea. This process is called the urea cycle. Urea travels in our blood to the kidneys. The kidneys clean our blood and put urea into urine. This helps keep our body healthy and balanced.

Urea Helps Plants Grow

Outside our bodies, urea is very useful. It is used as a fertilizer to help plants grow. Plants need nitrogen to stay strong, and urea gives them this important nutrient. When urea is put on soil, it breaks down and plants can take up the nitrogen through their roots.

An Important Discovery

In 1828, a scientist named Friedrich Wöhler discovered something amazing. He made urea from simple, non-living materials. This showed that things made by living things could also be made in a lab. It was a big moment in science!

Images

A colorful 3D model showing the structure of a urea molecule, with different colored balls representing its atoms.
A colorful 3D model showing the structure of a urea molecule, with different colors representing each type of atom.
A scientific diagram showing the structure of an iron-urea complex, useful for learning about chemistry.

Related articles

This article is a child-friendly adaptation of the Wikipedia article on Urea, available under CC BY-SA 4.0.

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