Hydrogen

What is Hydrogen?

Hydrogen is a tiny, simple kind of matter called a chemical element. It is the lightest and most common element in the whole universe! You can find hydrogen in stars like our Sun, in water, and even in the air we breathe.

Hydrogen usually lives as a gas made of tiny molecules. Each molecule has two hydrogen atoms stuck together, and we call this dihydrogen. This gas has no color and no smell. It is very light and floats easily.

Where Did Hydrogen Come From?

People first discovered hydrogen a long time ago, in the 1700s. A smart scientist named Henry Cavendish found that when hydrogen burns, it makes water. That’s why its name means “water-former.” Hydrogen helps make many things, like water and plants, and it is very useful for scientists.

Fun Facts About Hydrogen

• Hydrogen is the lightest element we know.
• It makes up about 75% of all the matter in the universe!
• You can find hydrogen in water, stars, and even in some clean energy machines called fuel cells.

Hydrogen is a wonderful and important part of our world, from the biggest stars to the water we drink every day.