00:06If you've got a question and you don't know where to go
00:09Ask Nina for some help, cause she's got a science show
00:12She makes sense of her senses while helping all her fans
00:15By doing her experiments with potions and with bad
00:18Touch her tongue, fingers, eyes, ears, ears, nose
00:23Every day we use our senses wherever we may go
00:30Tongue, tongue, fingers, eyes, ears, nose
00:36Nina and the neurons find out what you need to know
00:39Nina and the neurons find out what you need to know
00:42Cookie helps us with our eyes and Felix with our touch
00:45Ollie's stuff that smells and sounds and bells she hears so much
00:48But it's Ollie's brother, he helps us with our taste
00:51Then he does little neurons and they're coming to your place
00:54Tongue, tongue, tongue, fingers, fingers, eyes, ears, ears, nose
01:00Nina and the neurons find out what you need to know
01:03Nina and the neurons find out what you need to know
01:06Oh yeah!
01:08Hello everyone!
01:10Hello Nina!
01:12I've got a demonstration for you today and it's all to do with pressure
01:17And the things I'm going to be using are these lovely marshmallows
01:21And this glass jar
01:23And these marshmallows are just like ordinary marshmallows
01:27And okay, well I'll prove it to you by eating one
01:31Mmm, that is delicious
01:38Anyway, I've used the marshmallows to make my lovely assistant for the day
01:43Mr Marshmallow Man
01:45Say hello to the boys and girls
01:49He's not feeling like speaking today, sorry about that
01:51Okay Mr Marshmallow Man, under the jar you go
01:54Now everyone, Mr Marshmallow is safely in the jar
01:58But what else is in the jar?
02:02Yes?
02:02Air
02:03That's absolutely right
02:04The jar is full of air, just like all around us
02:09Now I'm going to suck the air out of the jar
02:12Using this pump here
02:14You keep an eye on Mr Marshmallow Man, okay?
02:21Are you watching the marshmallows?
02:24They're getting bigger and bigger!
02:28Can you see that?
02:30Yeah?
02:31Oh!
02:34Oh, that's fantastic!
02:38Oh!
02:40We'll stop him there before his head bursts
02:42Now, the reason that's happening
02:45Is because there's little pockets of air in the marshmallow
02:48And when all the air is sucked out of the jar
02:51The little pockets of air have room to grow
02:55And they blow up like a balloon
02:56Because there's no air left in the jar
02:58To press against the marshmallow
03:00Now let's see what happens
03:02If I let the air back into the jar
03:05You watching?
03:08Oh!
03:12He's all shriveling up
03:14And that's because the air is flooding back into the jar
03:17And pressing against the marshmallow
03:20Making them smaller again
03:21It's all to do with the air pressure
03:24The lower the air pressure
03:27The bigger the marshmallows
03:30The higher the air pressure
03:34The smaller the marshmallow
03:37Oh!
03:38Thank you!
03:38Thank you very much!
03:40Thank you for coming
03:41And I shall see you all again soon
03:42Bye!
03:44Bye!
03:45Bye!
03:46Bye!
03:46Bye!
03:47Oh!
03:48I hear a beep!
03:49I see a flash!
03:50I wonder what they're going to ask
03:56Hi Nina, my name's Jessica
03:58How do you know when you need to go for a week?
04:02That's a very interesting question
04:03And an important one too
04:05There's nothing worse than needing the toilet
04:07When you're nowhere near one
04:08Bye!
04:10See you soon!
04:11Well I think we're going to need some help
04:13To answer this one
04:13And I know just who to ask
04:15Okay neurons, time to get to work
04:34Neurons at the ready Nina
04:37Okay, today's question is
04:39How do you know when to go to the toilet?
04:41Which neuron do you think will be most useful
04:44In helping us find the answer?
04:45Me, me, me, me
04:48Will it be
04:49Fabulous Felix?
04:51I can help so very much
04:53If you need the sense of touch
04:55Will it be
04:56Beautiful Belle?
04:57I send messages brain to ear
04:59If there's a sound I'll help you hear
05:01Will it be
05:02Lovely look?
05:04For looking and seeing
05:05Day or night
05:06I'll help you with your sense of sight
05:08Will it be
05:09Awesome Ollie?
05:10If it's Pongy or Withy
05:12But you can't tell
05:13My messages help your sense of smell
05:15Or will it be Baby Bud
05:16Sour, salty, bitter or sweet
05:19I'm your taste buddy whenever you eat
05:26It's Felix
05:29Go Felix, go Felix, go Felix
05:32Go Felix, go Felix, go Felix
05:35Go Felix, go Felix
05:45So Felix will be helping us out today
05:51OK then
05:53Let's go
06:21In the bustling city of Boston
06:24In Barcelona lives Jessica
06:25Her brother Max
06:26And their mum and dad
06:28Today
06:28For one day only
06:30Jessica and her family are
06:32The experimenters
06:41Hi everyone
06:44Hello Jessica, how are you?
06:46Fine, thank you
06:47Good
06:47And thank you very much for your question
06:49How can I tell when I need to go to the toilet?
06:51Now, in order for us to grow strong and healthy
06:54We need food and drink
06:56Yeah
06:56And we use up all the good stuff
06:58And there's always something left over
07:00And when there's liquid left over
07:02That's when we need to go for a wee
07:04So that's the easy bit cleared up
07:06But we still haven't answered your question Jessica
07:09So I think we're going to need to do an experiment
07:11To find out the answer
07:12And Felix is ready and waiting to help us out
07:15Aren't you Felix?
07:22Oh, it's my big moment
07:23Standing by
07:24Ready to send lots of messages
07:27Now, it takes a while
07:29After having a drink
07:31To needing to go to the toilet
07:32So the liquid your body doesn't use
07:34Is stored inside your bladder
07:36Now your bladder is a bit like a balloon
07:38That fills up with liquid
07:40So let's get on with the experiment
07:42Now, you all have a balloon there
07:44With a pump
07:45Yeah
07:46Now what we're going to do
07:47Is see who can blow up the biggest balloon
07:50I want you to blow them up as much as you can
07:52But stop when you think it's going to burst
07:55Are you ready?
07:56Go!
08:01Oh no, balloons
08:03I just know they're going to
08:05Oh!
08:06Burst!
08:07What a bang
08:14Now, we're going to blow up another balloon
08:17But this time
08:18Have a look at this balloon
08:19This balloon is as full as it can get
08:22So I'd like you to try and make your balloons
08:24The same size
08:26And again, stopping before the burst
08:28Okay?
08:28Okay, okay
08:28Pop it, Dad
08:30That's right
08:31Are you ready?
08:32And go!
08:35I want your balloons to be this size
08:39Oh, let's have a look at the balloon
08:48Oh, that's pretty good, Dad
08:50A lot better than last time
08:52Jessica?
08:53That is nearly perfect
08:56Well done
08:57Mum?
08:58Very good
08:59Not quite as perfect as Jessica's
09:01But you didn't burst it
09:02And that's the main thing
09:03That's right
09:04And Max, how did you do it?
09:06Yours is bigger than Mum's
09:08Not quite perfect
09:09But again, it didn't burst
09:10Well done, everyone
09:12Well, that worked really well
09:14You did have a more obvious sign of when to stop
09:17So you knew when your balloon was full
09:18And what happens with your bladder is
09:21It fills up and fills up
09:22And your body knows when it's full
09:24And when it's full enough
09:25It sends a message to your brain
09:27Telling you that you need to go to the toilet
09:29I get it
09:30The balloons are filling up with air
09:32In the same way our bladder fills up with liquid
09:36Oh, no, you don't mean that bladders bang when they are full
09:39Just like those balloons did
09:40No, silly
09:41Because I send messages to Nina when her bladder's full
09:44To let her know that she needs to go to the toilet
09:49Right
09:49I think we've answered your question, Jessica
09:51Can you remind me what it was?
09:53How do you know when you need to go to the toilet?
09:56Right, well there's a special place inside our bodies
09:58Which stores water called the bladder
10:00And it's quite like the balloons we saw earlier
10:03They can get really full and they need emptying
10:05And that's when you get the funny full feeling
10:07That tells you you need to go to the toilet
10:09And our bladders are amazing
10:10They're just like this sponge, actually
10:12When I take it out of the water
10:14It's quite heavy
10:16But if I give it a squeeze
10:20It becomes nice and light
10:22Jumps back into shape
10:24And is ready to fill up again
10:25So the next time you need to go for a wee
10:27Remember this sponge
10:28Because bladders are brilliant
10:43Nina, Nina
10:45I've got a very important message
10:47You need to go to the toilet
10:50All this sightseeing's thirsty work
10:52I think I need something to drink
10:54Oh no, fruit juice
10:57That's the last thing I need
10:58Oh, juice, perfect
11:01Don't get any, Nina
11:03Shush, Felix
11:05You're going to spoil all our fun
11:07I love all the different tastes Nina's trying out
11:17Now, Nina
11:18Haven't you got the message yet?
11:21Go to the toilet
11:23Now
11:30Thanks so much
11:31I need a wee now
11:32I don't want to miss anything
11:36I'm warning you, Nina
11:37Don't drink any more
11:40Oh dear
11:41I think I've had too many drinks
11:42I'm starting to need the toilet
11:44I wonder where I'll find one
11:50Nina, you need to find a toilet and fast
11:55I know that, Felix
11:56I'm trying to find one
11:58Oh dear, I'm desperate
12:04Oh, thank goodness I found a toilet
12:07And not a minute too soon
12:23Oh, that's much better
12:25Sorry to put so much pressure on you, Felix
12:27Oh, at last
12:29I can relax for a little while
12:30At least until she starts drinking and eating again
12:34Right, time to head off home
12:48It's been a busy, busy day
12:51Questions answered, experiments done
12:54We've all used our senses in so many ways
12:57Tell me, neurons, what have you done today?
13:00Well, I definitely worked the hardest today
13:03I really felt so much pressure
13:06Nina just would not go to the toilet quickly enough
13:09I was really busy
13:11Carrying so many messages about delicious smelling drinks
13:15Wowee!
13:16I've been a busy baby bud
13:18It was nice to help Nina taste so many lovely drinks
13:22But she just drank too much liquid
13:27Yeah, I was pretty busy
13:28She really needed me to work hard to try and spot her toilet
13:32There were loads of sounds to keep me busy
13:35But the loudest was definitely the sound of that balloon bursting
13:39What a pop!
13:42Nina and the newborn
13:44Nina and the newborn
13:47Nina and the newborn
13:50Well, that was great fun
13:52I hope you've had a sensational time too
13:55Bye!
13:57Bye!
13:59Bye!
13:59Nina and the newborn
14:03Nina and the newborn
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