The Ozone Layer: Earth's Invisible Sunscreen!

High up in our sky, way above the clouds, there's a special blanket called the ozone layer. It's made of tiny bits of a gas called ozone. This layer is like Earth's own sunscreen, working hard to keep us safe. It's not a solid thing you can touch, but it's super important for all living things on our planet. Think of it as a superhero cape for Earth!

Scientists are super curious! In 1913, two clever scientists named Charles Fabry and Henri Buisson were looking at the sun's light. They noticed that some of the sun's rays weren't reaching Earth.

They figured out that something in the sky was blocking them. Later, another scientist named G. M.

B. Dobson studied this special gas, ozone, and helped us understand how to measure it. He even invented a special tool to do it!

The ozone layer is like a super-duper filter. It stops most of the sun's yucky ultraviolet (UV) rays from reaching us. These rays can be harmful, like a really bad sunburn that lasts forever! If the ozone layer wasn't there, these rays could hurt plants, animals, and even people, making us sick. So, this invisible shield is a lifesaver!

Ozone is a special kind of oxygen molecule, made of three oxygen atoms instead of the usual two. When the sun's UV rays hit these ozone molecules, they absorb the energy. It's like the ozone layer is catching the harmful rays and stopping them from getting through. This process keeps the amount of UV radiation reaching the ground much lower, protecting everything below.