I'm very excited by this, but I think I speak on behalf of all the audience when I say… can we shrink another balloon?! Yes! Yes! The air inside the bottle cooled down and it shrunk again. It's that big right hook you've got there. So could you please put the cold water on top of this container?Įlliot lifts an iced jug of water on top of the upside down container. Now, what do we need to do to get that balloon to fall back down again, Elliot? Elliot punches at it, and it bounces on the bottle lip like a punching bag. That balloon is gonna come to life because the air is going to expand. On the top, attached to the lip, is an empty green balloon. So, we already know what happens when you heat air up, so what's gonna happen when we put that bottle into that container? If you're using boiling water, you really need an adult supervisor. Text on screen - 'Use parental supervision when using boiling water.' Elliot pours the water into the jar. Ruben places a jar on an upside down black container.Įlliot, could you pour some boiling water in there, please? But if you do want to prove to your friends and family - anyone - that air expands and shrinks, well, try it this way. And you will notice some shrinking - nothing like this. Your balloon will shrink a bit, so you can try it. Right, well, you can put a balloon in your freezer at home, but it's only minus-20 in your freezer - that means the air inside will only reach a minimum of minus-20. This is a really good trick, but what if I want to replicate this at home? Ruben blows on the outside of the shrivelled blue balloon. It doesn't look so happy, does it? Keep watching. On the count of three, out comes the balloon. What do you think is gonna happen when I take the balloon out of the liquid nitrogen? Do you think it's gonna get even smaller or will it get…? When you make air cold, it gets…Įxcellent. You've just learned a fact of nature, Elliot. It looks like there's no air left inside this balloon at all, but all the air is still in there. It's all gone! And you're compacting it, you're squashing it, you're making it… smaller. (Chuckles) No, no, it's OK, it's still made out of rubber. Ruben presses on the balloon and it rustles like plastic. The blue balloon wrinkles and starts shrinking down into a bowl. Oooh! Or do you reckon it's gonna shrink? Um, do you reckon it's gonna pop, everyone? But we're gonna find out what happens to it when you make it super, ultra, mega, freezing-cold by pouring liquid nitrogen all over it. It's all around you, you breath it in and out. we are going to find out what happens to this invisible stuff we call air. Wicked! And we're still playing with liquid nitrogen.Įlliot, what am I blowing into this balloon? I've always wanted to be on a science game show. Oh! Oh! Me with the gloves, can I come on down, Ruben? From the back of the audience, co-host Elliot Spencer comes running down to join him. Rollercoaster host Ruben Meerman is on stage before an audience of kids.
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