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Chemistry

Adapted from Wikipedia · Explorer experience

A colorful display of chemicals in laboratory flasks, showing different reactions under lighting.

What is Chemistry?

Chemistry is the study of matter — everything around us made of tiny parts. It is a physical science that looks at how things are made, how they fit together, and how they change.

Chemistry is often called the central science because it helps us understand many other areas. It explains how plants grow, how rocks form, how the air stays clean, how medicines work in our bodies, and even how we can find clues from a crime scene.

A Long History

Chemistry has been around for a very long time. People used chemistry ideas even thousands of years ago. They learned how to make pottery, brew drinks, and create useful mixtures.

During the Renaissance, the word chemistry came from an older practice called alchemy. Alchemists were curious people who asked many questions that are still important today.

Fun in the Lab

Today, chemists work in special rooms called chemistry laboratories. They use glass tools to do experiments. When substances change into new substances, it’s called a chemical reaction. Chemists write these reactions down using symbols called chemical equations.

Chemists also study how much energy is involved when substances change. They look at how things are built, how they change from one state to another, and how they react under different conditions.

Images

A scientific model showing the structure of a caffeine molecule.
A glowing purple ring on a dark background.
A scientific illustration showing the structure of the RGS4 protein, helping us learn about how cells work.
A laboratory setup with scientific equipment at the University of Cologne.
A 3D scientific model showing the structure of the caffeine molecule, made up of atoms represented as colored balls connected by sticks.
A close-up of natural diamonds found in rock formations.
A close-up photograph of sugar crystals showing their unique shape and texture.
A close-up view of sparkling salt crystals.
A close-up of baking soda, a common household ingredient used in cooking and cleaning.
A 3D model showing the structure of a carbon dioxide molecule, made up of one carbon atom and two oxygen atoms.
Animation showing how sodium and chlorine atoms bond to form table salt through ionic bonding.

Related articles

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

Images from Wikimedia Commons. Tap any image to view credits and license.