- Hey, American Museum of Natural History, Science and Nature Program,
what makes a ball bouncy? - Let's find out! - Oh boy! Why won't this ball bounce? - I think that's because this clay ball is not elastic, but I know
there are types of balls that are elastic and they will bounce. - Yeah, I've seen bouncy
balls but I couldn't make one. - Right, should we see some
different types of balls? I have a basketball. What's in here? - Air. - Air! Did it bounce?
- Yeah. - How about this ball? Good boun
ce. It's taking it's shape again
after you pushed it in. - Which one is the bounciest? - We're gonna use all the
balls that I showed you and we're gonna see which
ball bounces the highest! - Oh boy, we're gonna do an experiment to find out which ball goes the highest! Hey Sophia, which kind
of ball you gonna bounce? - A ping-pong ball. - Ooh, a ping-pong ball? How do you think it's gonna bounce? - Not so high. - Why do you think it's
gonna bounce not so high? - Because it's hard and it's small.
- Okay, it's hard and it's small. Okay, Sophia, let's give it a bounce. Ooh, the ping-pong ball went between the blue and the purple. Bring out the next ball! Danielle, what kind of ball do you have? - I have a baseball. - How high do you think
that baseball will bounce? - I think it's gonna drop low. - Let's see you bounce it. - Goes.
- Ooh! The baseball bounced to the green! We're gonna test more
balls in a few minutes! Oh, Ty, what kind of ball do you have? - A hacky sack. - What's it feel li
ke? - [Ty] It feels like a buncha yarn. - How do you think that's gonna bounce. - I don't think it's gonna bounce at all. - Give it a try! - Okay.
- Oh! - The hacky sack didn't bounce at all! What ball do you have, Henry? - A basketball. - How do you think that's gonna bounce? - High. - High? Let's give it a try, Henry! Bounce that ball! The basketball bounced all
the way up to the yellow! Next ball! - Arnold, what kind of ball do you have? - Rubber. - Let's see how high it bounces! - [Woman] Oo
h. - Wow, the rubber ball
bounced the highest! I guess what a ball's made of changes how high it bounces!
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