You cannot see air. But air is always there. Air is not solid like a rock, or wet like a raindrop. Air is a gas. Your body needs the gas to breathe. If you can smell something bad in the air, or see the air, or taste the air, then something may be wrong with the air. Every living thing on earth needs air to breathe. Can you prove to someone that air is real?
Things can go for a ride on the air. Some of those things can make the air smell good. Think of the smell of an orange being peeled. But some of the things that ride the air can make it smell bad, or make it look dirty. Small particles from factories, or cars and trucks, or fires, or even dust can hitch a ride on the air. Sometimes it makes it hard to see the mountains, some times it makes it hard to breathe, especially if you have something called asthma. Can you think of other things that could make the air bad?
It is important for the air to be clean. It makes people, animals, and plants feel better when the air is clean. And we can see a long, long way. Factories, cars, and trucks can use fuels that make less of those tiny particles. And we can't stop all the fires. And we can't stop big wind storms. But we can try to make the fires make less smoke. And we can try to keep the earth from blowing around too much during a wind storm. Everyone needs to help keep the air clean. What are some ways you can help?