Air is Everywhere!
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Basics on the topic Air is Everywhere!
Uma is camping out in the fresh air today and pumping up a beach ball. But what is the ball filled with? With air!
Air is everywhere. And it does many things! Air needs space. Air moves things. Air carries things up and slows them down. Air also carries sounds and smells. Pay attention to what the air around you can do and learn more about it in this video!
Transcript Air is Everywhere!
Uma is already very excited. She is camping out in the fresh air today. The tent is up. What's Uma pumping right now? A beach ball! Air is Everywhere, even in this ball. Let's find out everywhere that air can be and what it can do.
Wait a minute! Can we even SEE air? Let's begin with a little experiment:
Blow into your hand!
Can you feel the air on your skin?
Yes, we FEEL air, but we can't see it.
Hmmm, what is air actually made of?
Air is made mostly of something called invisible gases.
You've probably heard of OXYGEN, but it's also made of other gases called nitrogen and carbon dioxide.
Humans and animals NEED oxygen from the air to breathe because we cannot live without it.
But air also makes many things possible everyday like pumping up balls.
Here, air needs SPACE.
If you blow up a ball, it fills with air and gets bigger and bigger until no more air fits in it. Then it's ready to play with!
Air not only takes up space, air also MOVES things.
Like this pinwheel here. It is driven by moving air, or what we usually call WIND.
The wind makes the blades move around.
Look! The air CARRIES this paper airplane, and eventually, the air also SLOWS the plane down so it falls to the ground.
You also feel air slowing you down when you ride your bike into the wind.
Think about dandelion seeds too! They are like little parachutes carried by the air for a while and then slowly fall to the ground.
Air can also CARRY sound.
Do you hear that?
It sounds nice.
When you sing, the air around you moves. These movements reach our ears and we hear a sound.
Try it out for yourself. La, la, la! Air can also carry smells! Have you ever smelled cookies baking or cotton candy at a fair? What's that smell? Before we see what it is, let's remember! Air is everywhere. And it does many things! Air needs space. Air moves things. Air carries things up and slows them down. Air also carries sounds and smells. Pay attention to what the air around you can do! Tell us about it in the comments.
Mhhmm, that smells...gooooood!
that is cool