Bubbles Burst Nina and the Neurons


Bubbles Burst

Scientist Nina and her young experimenters discover how substances change and react. They go to a pond and investigate why bubbles burst.


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Transcript


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# If you've got a question and you don't know where to go

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# Ask Nina for some help Cos she's got a science show

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# She makes sense of her senses While helping all her fans

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# By doing her experiments with potions and with bangs

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-# Touch your tongue

-Tongue!

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-# Fingers

-Fingers!

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-# Eyes.

-Eyes!

-Ears.

-Ears!

-Nose.

-Nose!

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# Nina and the Neurons find out what you need to know

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# Nina and the Neurons find out what you need to know

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# Luke, he helps us with our eyes and Felix with our touch

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# Ollie sniffs out smells And Belle, she hears so much

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# Bud is Ollie's brother He helps us with our taste

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# They're Nina's little neurons And they're coming to your place!

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-# Touch your tongue

-Tongue!

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-# Fingers

-Fingers!

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-# Eyes.

-Eyes!

-Ears.

-Ears!

-Nose.

-Nose!

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# Nina and the Neurons find out what you need to know

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# Nina and the Neurons find out what you need to know

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# Oh yeah! #

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Oh, hello! My last experiment was messy so I'm cleaning up the lab.

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Oh, itchy nose!

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Oh no! Bubbly nose! Silly me!

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BEEP! BEEP!

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I hear a beep, I see a flash. I wonder what they're going to ask.

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-Hi Nina!

-Hi, guys.

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-We've got a question for you.

-Why do bubbles burst?

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A brilliant question! Why do bubbles burst?

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I just had a few bubbles burst on the end of my nose.

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I'm not sure why. Come to the lab and we'll do some experiments.

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BOTH: See you soon, Nina. Bye!

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Bye! I'm going to need help to answer this one

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and I know just who to ask.

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OK, neurons. Time to get to work!

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ALL: Neurons at the ready, Nina.

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OK. Today's question is, why do bubbles burst?

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Which Neuron will be most useful to help find the answer?

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ALL: Me! Me! Me! Oh, me!

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Will it be fabulous Felix?

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I can help so very much if you need the sense of touch.

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Will it be beautiful Belle?

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I send messages to brain from ear. If there's a sound, I'll help you hear.

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Will it be lovely Luke?

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For looking and seeing, day or night,

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I'll help you with your sense of sight.

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Will it be awesome Ollie?

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If it's pongy or whiffy but you can't tell,

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-my messages help your sense of smell.

-Or will it be baby Bud?

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Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat!

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-It's Luke!

-Yes!

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Go, Luke! Go, Luke! Go, Luke!

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Cool, Nina. I'll be looking out to help ya!

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Today's question is why do bubbles burst?

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To see bubbbles burst we use our sense of sight.

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Luke will be helping me today but stand by neurons

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I may need help from all of you.

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I need to get the lab ready before the experimenters arrive.

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Liam likes mountain biking. His friend Eve loves football.

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They want to find out why bubbles burst.

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Today, Liam and Eve become the experimenters!

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-Hi, guys!

-Hi, Nina!

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Welcome. Come in.

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It's lovely to see you both.

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So your question is why do bubbles burst?

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-But why do you want to know?

-Cos they're fun!

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-I like when it goes up in the air.

-They burst straight away. Why?

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Blowing bubbles is great fun but you're right.

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Sometimes they burst too soon. We need to investigate.

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We're going to use our senses.

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ALL: Whoo-hoo! A senses experiment! We're ready, Nina!

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It's time to get experimenting with some bubbles.

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You've got some bubble mixture. Let's make losts of bubbles!

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So, what's happening when you blow bubbles?

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-They're coming out of the circles.

-Then what happens?

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-They burst.

-Yeah.

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-Do you notice

-when

-they burst?

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When they touch something.

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The bubbles burst if they touch the desk or each other.

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Sometimes they just burst in the air. This has shown us

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that bubbles float in the air and if they touch something they burst.

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Sometimes they burst on their own.

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It's time for another experiement.

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We need to find what a bubble actually is.

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I'll try to make a bubble using just water.

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-Do you think it'll work?

-BOTH: No.

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Neither do I!

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-It's just pouring off, Nina!

-You're right, Luke.

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I can't blow a bubble cos there's nothing left to blow.

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Aw! No bubbles!

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Let me dip it into the bubble mixture...

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Ooh! There's a thin film over the hoop.

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I can see through it but there's something there.

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If I blow...

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It makes lots of bubbles this time!

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But why does this happen?

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We need to do another experiment. I'll put some water on this board.

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I'll try to spread it out.

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It's not spreading, Nina.

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LUKE: The water doesn't seem to be spreading, Nina.

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You're right, Luke. The water won't spread evenly.

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Just making little puddles.

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Let me try adding a little bit of washing-up liquid.

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Oh! Just one drop.

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It's spreading, Nina.

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Yes, by adding washing-up liquid, I've changed how the water behaves.

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It's can now spread and stretch out across the board.

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This is what happens with bubbles.

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By adding another ingredient, like washing-up liquid,

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you can change the way water behaves

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allowing it to stretch across the bubble hoop

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and you can make bubble shapes like this.

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These experiments have told us a lot about bubbles

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but to answer why bubbles burst,

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we need to go somewhere with even more water.

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Let's go, experimenters!

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Oh, goody! I love this bit. I wonder where Nina is taking us.

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Nina said it's a place with water.

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I hope it's a big, noisy waterfall.

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Sharpen your senses, neurons. It looks like we're here.

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Look! There's the pond.

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Aw, a beautiful pond.

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Perfect, this machine makes lots and lots of bubbles.

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I've made sure the bubble mixture won't harm the plants and animals.

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We're going to watch carefully to see where the bubbles land

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-and what happens. Are you ready?

-Yes!

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Eyes wide open. Ready and waiting to watch!

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Everybody sounds so happy!

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Birds singing, children laughing, lovely.

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I've never seen so many bubbles!

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Try and catch them!

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Oh, wow!

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I wonder if the bubbles will land on Nina. It feels tickly.

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OK, what did you notice about the bubbles when they landed?

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They burst and popped.

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When the bubbles landed on the fence, the trees,

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leaves or your hands, they popped and burst right away.

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But what happened when they landed on the pond?

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They didn't pop and lasted longer.

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What's the difference between the pond and the other places?

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The pond's wet and the other places are dry.

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That's right. The pond is wet and the other places are dry.

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So, this has shown us bubbles are more likely to pop

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when they land on something dry,

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and they last much longer when they land on something wet.

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But, eventually, they still burst. Why is that?

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I think we need to explore further. Let's go back to the lab

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-and do another experiment.

-YEAH!

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So, your question was, why do bubbles burst?

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So far, we've discovered that bubbles are made of water

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mixed with something like washing-up liquid.

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This changes the water and makes it thin and stretchy.

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We also know bubbles last longer when they touch something wet.

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We still don't know why bubbles burst so let's get experimenting!

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OK, I'm going to give you each some of the same bubble mixture.

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There we go, one for you.

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Mm, that bubble mixture smells quite soapy.

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And as you can see, Eve, you are standing next to the fan

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and Liam, you've got a hairdryer.

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Ooh, a hairdryer AND a fan. This could be noisy.

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So load up your bubble hoop. Hold it in front of the fan or hairdryer

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and watch carefully what happens when I turn them on. Here we go.

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Oh!

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Oh! That's amazing!

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They're making all those bubbles without even blowing!

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Oh, wow, Eve, those bubbles just keep going!

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Oh, nearly!

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Your bubbles aren't lasting very long, are they, Liam?

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OK, guys.

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Oh, well done, guys!

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So, what did you notice about your bubbles?

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Mine didn't last very long.

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And Eve's did.

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Yeah and what's the difference between the air from the fan

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-and the hairdryer?

-My one's warm

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and Eve's is quite cold.

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Yeah. A hairdryer blasts warm air to dry wet hair.

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But in this experiment, the hairdryer is drying up wet bubbles.

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And the fan has cool air so it doesn't dry up the bubbles

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as quickly so last much longer.

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Your question was, why do bubbles burst?

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I think we've answered it. We discovered that bubbles burst

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because they're made of water and dry up.

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This happens when they touch dry things or dry in the air.

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I hope that answers your question.

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Yes. Thanks, Nina, bye!

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Bye, guys! Thanks!

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If you want to know more about the science around us,

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go to the CBeebies website. Have fun!

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Lab coat on, Nina?

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Lab coat on, Ollie.

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Safety gloves on, Nina?

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Safety gloves on, Felix.

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Don't forget your goggles, Nina.

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Goggles are on, Luke. I think we're ready!

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# We do experiments in the lab

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-# In the lab!

-Shooby-dooby, in the lab

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# Bubbling experiments in the lab

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# In the lab!

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# Go, Nina, in the lab

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# Fizzing and popping Steam and smoke

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# We need protection Don't we, folks?

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# We always put our safety first

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# Shooby-dooby, dooby-dooby

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# We do experiments in the lab

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# In the lab!

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# Go, Nina! #

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It's been a marvellous day.

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All those tickly bubbles, flying about.

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I really enjoyed myself today.

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Sniffing all that fresh air at the duck pond.

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I've had a brilliant day.

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What a racket from the fan and the hairdryer!

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I've had a fabby day!

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Full of big, blowy, bubbly bubbles!

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Our day's been bursting with sensational experiments.

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I hope you enjoyed it. Bye!

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ALL: Bye!

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Subtitles by Red Bee Media Ltd

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Scientist Nina and her young experimenters discover the amazing ways that things can change and react in the everyday world.

Nina investigates why bubbles burst with the help of Luke, her sight neuron. Experimenters Eve and Liam visit Nina in her lab and use their senses to work out that bubbles can burst when they touch something, or sometimes just burst in the air. Nina shows that we can't blow bubbles with just water but that adding washing-up liquid to water can make it stretchy.

Then they all go to a pond and prove that bubbles last longer if they land on water. Finally, back in the lab, they have a competition to see if a hot hairdryer or a cold fan will blow longer-lasting bubbles.


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