Denise Sheffield

Full Playlist: www.youtube.com/playlist?list=PLLALQuK1NDrjWtEgCx_lAKrBpGtb8c0sV

-

-

Like these Kids Activities !!! Check out the official app apple.co/1ThDIrx

Watch more How to Do Small Science Projects for Children videos: www.howcast.com/videos/510851-How-to-Demonstrate-Air-Resistance-Science-Projects

Hi, guys. You know sometimes in science we describe things according to properties and properties are when you describe things according to their color, their shape, their texture, their size. Like a property of me is Im extremely beautiful and handsome, right? Okay, maybe not, but check this out.

Here I have two sheets of paper, right? Now if you look at them, theyre exactly the same. Same color, same shape, put them together, same size. Hold them side by side, theyre exactly the same weight. But now Im going to change a property just on one of them.

Im going to take this piece of paper and Im going to crumble it as hard as I can, just going to squeeze and squeeze it and squeeze it and make a very, very, very tight ball of paper. Now if you look at these two sheets of paper and I asked you a question, I guarantee youre all going to get this question wrong.

Which one weighs more? Is it A or is it B? Now most of you are going to say its B, and actually theyre exactly the same. All I did was change its shape. I didnt change its weight. Think about it. If you weight 50 pounds and you put your hands in the air, you still weigh 50 pounds.

If youre jumping into a pool of water and you turn your body up really tight, and youre doing a cannonball, you put all of that weight into a small space, but you still weigh 50 pounds. The weight didnt change, I changed the shape. Now I have a cool, little fun story I like doing with these papers.

I am a little weird, but lets just pretend that these papers talk. And these paper lived in Paper Town and all of a sudden, you have this big guy walking and hes like stomp, stomp, stomp, and you have this little guy walking and hes like de, de-dup, doo-doo. Stomp, stomp, de-de-up.

"Hey, what are you doing?" "Ah, nothing. Why dont you move out of my way?" "Do you know who youre talking to?" "Yeah, someone very big." "What?" "And very ugly." Now, of course these papers get into this huge conflict and then they get into this competition. Theyre going to have a race.

So they climb on top of a mountain. The loser has to leave town. And the race is this. This guy thinks because hes bigger, hes going to hit the floor faster. So they climb on top of the mountain, okay? Now remember, the loser has to leave town. Now let me ask you a question.

If I drop these two sheets of paper at exactly the same spot. Im changing nothing. Im not forcing them. Im just going to let them go and the only thing thats different is its shape. Its the same exact thing and I let it go, which one is going to hit the floor first, A or B?

Make a prediction and now lets see. Three, two, one. Was your prediction right? I think it was. The ball of paper did hit the ground first. Now does anybody know why? Well, you see this large sheet of paper, it was really unfair. Think about it. Underneath this large sheet of paper is what?

Theres air. The ball of paper had just a little bit of air underneath it to move out of the way. This large sheet of paper, as he was falling, was moving through the air like, doo-doo-doo, doo-doo-doo-doo. Where the ball of paper had just a little bit of air to move and it kind of was like, whoohooo-super fast.

Now think about it, okay? Thats what air resistance is. The air is resisting. Theres resistance, so this paper has to move all of the air out of the way and the bigger the surface, the more of the air, the more resistance the slower it falls.

Now as you saw the large sheet of paper did move really slow. The ball of paper did move rather quickly and you guys can do this experiment at home. Try really big sheets of paper. Try really small sheets of paper.

And ultimately, youre going to realize that the object that moves super-slow through the air is the object that is extremely air resistant. And the object that moves extremely fast through the air is the object thats not air resistant. So now you know a little bit about air resistance.