0:00:05 > 0:00:08# If you've got a question And you don't know where to go
0:00:08 > 0:00:11# Ask Nina for some help Cos she's got a science show
0:00:11 > 0:00:14# She makes sense of her senses While helping all her fans
0:00:14 > 0:00:17# By doing her experiments with potions and with bangs
0:00:17 > 0:00:19- # Touch your tongue - Tongue!
0:00:19 > 0:00:20- # Fingers - Fingers!
0:00:20 > 0:00:23- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:00:23 > 0:00:26# Nina and the Neurons Find out what you need to know
0:00:26 > 0:00:29# Nina and the Neurons Find out what you need to know!
0:00:29 > 0:00:32# Luke, he helps us with our eyes And Felix with our touch
0:00:32 > 0:00:35# Ollie sniffs out smells and scents And Belle, she hears so much
0:00:35 > 0:00:38# Bud is Ollie's brother He helps us with our taste
0:00:38 > 0:00:41# They're Nina's little Neurons And they're coming to your place!
0:00:41 > 0:00:43- # Touch your tongue - Tongue!
0:00:43 > 0:00:44- # Fingers - Fingers!
0:00:44 > 0:00:47- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:00:47 > 0:00:50# Nina and the Neurons Find out what you need to know
0:00:50 > 0:00:53# Nina and the Neurons Find out what you need to know!
0:00:53 > 0:00:54# Oh, yeah! #
0:00:57 > 0:00:59# Doo-dah doo. #
0:00:59 > 0:01:00Oh, hello!
0:01:00 > 0:01:02I'm cleaning up after an experiment.
0:01:02 > 0:01:05Do you like my fancy gloves?
0:01:05 > 0:01:09My fingers like to be well-dressed when washing up.
0:01:09 > 0:01:12And my little rubber friends keep my hands dry.
0:01:12 > 0:01:15- BEEPING - Oh!
0:01:15 > 0:01:17I hear a beep, I see a flash.
0:01:17 > 0:01:19I wonder what they're going to ask?
0:01:24 > 0:01:27- CHILDREN: Hi, Nina! - Hi, guys!
0:01:27 > 0:01:32- We've got a question for you.- Why do our fingers go wrinkly in the bath?
0:01:32 > 0:01:36That's a great question! Why do our fingers go wrinkly in the bath?
0:01:36 > 0:01:41That happens to me too, but my fingers and toes go wrinkly.
0:01:41 > 0:01:45Why don't you come down to my lab and we'll investigate?
0:01:45 > 0:01:48CHILDREN: See you soon, Nina! Bye!
0:01:48 > 0:01:49Bye!
0:01:49 > 0:01:52Well, I'm going to need help to answer this one
0:01:52 > 0:01:54and I know just who to ask.
0:01:54 > 0:01:56OK, Neurons, time to get to work!
0:02:12 > 0:02:15- ALL:- Neurons at the ready, Nina.
0:02:15 > 0:02:19OK. Today's question is, why do our fingers go wrinkly in the bath?
0:02:19 > 0:02:23Which Neuron will be most useful to help find the answer?
0:02:23 > 0:02:26- ALL:- Me! Me! Me! Oh, me!
0:02:26 > 0:02:29Will it be fabulous Felix?
0:02:29 > 0:02:32I can help so very much if you need the sense of touch.
0:02:32 > 0:02:34Will it be beautiful Belle?
0:02:34 > 0:02:39I send messages to brain from ear. If there's a sound, I'll help you hear.
0:02:39 > 0:02:41Will it be lovely Luke?
0:02:41 > 0:02:43For looking and seeing, day or night,
0:02:43 > 0:02:46I'll help you with your sense of sight.
0:02:46 > 0:02:48Will it be awesome Ollie?
0:02:48 > 0:02:50If it's pongy or whiffy but you can't tell,
0:02:50 > 0:02:54- my messages help your sense of smell. - Or will it be baby Bud?
0:02:54 > 0:02:59Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat!
0:03:03 > 0:03:05It's Felix!
0:03:05 > 0:03:06CHEERING
0:03:06 > 0:03:10- ALL:- Go, Felix! Go, Felix! Go, Felix! Go, Felix!
0:03:10 > 0:03:12Go, Felix! Go, Felix!
0:03:12 > 0:03:14Go, Felix!
0:03:14 > 0:03:18Marvellous. A little touch can mean so much, Nina.
0:03:18 > 0:03:22Today's question is, why do our fingers go wrinkly in the bath?
0:03:22 > 0:03:25We use our fingers to touch and feel,
0:03:25 > 0:03:28so I'll be relying on Felix the touch Neuron to help.
0:03:28 > 0:03:32But stand by, Neurons, I may need help from all of you.
0:03:32 > 0:03:36I need to get organised, the experimenters will be here soon!
0:03:38 > 0:03:43Florence loves writing stories, her friend Levi loves pasta,
0:03:43 > 0:03:46but both want to find out about wrinkly fingers.
0:03:46 > 0:03:50So today, for one day only, Florence and Levi become...
0:03:50 > 0:03:51the experimenters!
0:03:51 > 0:03:55- Hi, guys! - TOGETHER: Hi, Nina!
0:03:55 > 0:04:00Welcome to my science lab, come in, come in!
0:04:00 > 0:04:05Now, your question is, why do our fingers go wrinkly in the bath?
0:04:05 > 0:04:07So, why do you want to know that?
0:04:07 > 0:04:11Because whenever I have a bath, my fingers go all wrinkly
0:04:11 > 0:04:13and I want to know why.
0:04:13 > 0:04:17Huh! Well, my fingers and toes go wrinkly in the bath too,
0:04:17 > 0:04:21so this is a great question. On our first experiment
0:04:21 > 0:04:23we're going to be using our senses!
0:04:23 > 0:04:28- ALL:- Woo-hoo! A senses experiment! We're ready, Nina!
0:04:28 > 0:04:32The first thing we should do is have a look at our fingertips,
0:04:32 > 0:04:34so let's see your fingers.
0:04:34 > 0:04:36OK, how do they look?
0:04:36 > 0:04:37Not wrinkly.
0:04:37 > 0:04:41They don't look wrinkly. What do they look like, Levi?
0:04:41 > 0:04:43Normal fingers.
0:04:43 > 0:04:45Just normal fingers, yeah.
0:04:45 > 0:04:49- Let's rub our fingers together, how do they feel?- Warm.
0:04:49 > 0:04:52- Warm and sweaty. - Are they a bit sweaty?
0:04:52 > 0:04:56Yeah, they feel warm. Mine feel a bit dry, actually.
0:04:56 > 0:05:01Great! So, do any of your fingers feel or look wrinkly at the moment?
0:05:01 > 0:05:02CHILDREN: No.
0:05:02 > 0:05:07OK, so you want to know why your fingers go wrinkly in the bath.
0:05:07 > 0:05:12Now, your bath is full of warm water, and so is my sink!
0:05:12 > 0:05:16Let's soak our hands in the water and see what happens.
0:05:16 > 0:05:18We can play with these toys too!
0:05:20 > 0:05:22Let's put all of them in.
0:05:27 > 0:05:28# Boop-boop! #
0:05:28 > 0:05:30- SQUIRT! - Oh! Hello!
0:05:42 > 0:05:45Nina, looks like you're having a great time,
0:05:45 > 0:05:47but how are the fingers looking?
0:05:47 > 0:05:50Oh! Thanks for reminding me, Luke!
0:05:50 > 0:05:54I'm having so much fun, I almost forgot it was an experiment!
0:05:54 > 0:05:57OK, so hands up, guys!
0:05:57 > 0:06:00Oh, mine are definitely wrinkly, look at that!
0:06:00 > 0:06:06- What about yours, Florence?- They're really bumpy.- Really wrinkly.
0:06:06 > 0:06:09So our fingers were soft and smooth,
0:06:09 > 0:06:13and after we've taken them out the water, they've gone wrinkly!
0:06:13 > 0:06:17We know the water must have made our fingers go wrinkly!
0:06:17 > 0:06:21But we don't know why. Time for another experiment!
0:06:23 > 0:06:24OK, guys.
0:06:24 > 0:06:28Now, in this experiment, we're also using water,
0:06:28 > 0:06:30but our hands will stay nice and dry.
0:06:30 > 0:06:33These are soil pellets.
0:06:33 > 0:06:37- What's that Nina's using? - They're soil pellets, Bud.
0:06:37 > 0:06:41They're a bit like the mud you get in plant pots.
0:06:41 > 0:06:44Watch carefully to see what happens when I add some water.
0:06:55 > 0:06:56Ew!
0:06:56 > 0:07:01That's amazing! It looks like the pellet is growing.
0:07:02 > 0:07:05- What can you see? - TOGETHER: They've grown!
0:07:05 > 0:07:10Yeah! The soil pellet is a bit like a bath sponge,
0:07:10 > 0:07:11it's soaked up the water.
0:07:11 > 0:07:16In science, when materials do that, we say they absorb water.
0:07:16 > 0:07:19And when things absorb water, they get bigger.
0:07:19 > 0:07:23Some animals, like frogs, they absorb water all over their bodies!
0:07:23 > 0:07:25That's how they drink!
0:07:25 > 0:07:28Did Nina say frogs? I LOVE frogs!
0:07:28 > 0:07:32Boing! Boing! Boing! Boing! Boing!
0:07:32 > 0:07:36Hmm, as I was saying, when our fingertips and toes get wet,
0:07:36 > 0:07:41they absorb water, just like a frog, and get a tiny bit bigger!
0:07:41 > 0:07:45But what does this have to do with wrinkles?
0:07:45 > 0:07:48We need to find out more and I know just the place to go!
0:07:48 > 0:07:51Let's go, experimenters! This way!
0:07:57 > 0:08:00Off we go for another adventure.
0:08:00 > 0:08:04Nina said it's somewhere we can find out more about wrinkles.
0:08:04 > 0:08:06Maybe it's the zoo!
0:08:06 > 0:08:09Elephants have got lots of wrinkles!
0:08:09 > 0:08:12Looks like we're here!
0:08:12 > 0:08:16This is a school for people who want to perform in a circus,
0:08:16 > 0:08:19like jugglers, acrobats and clowns.
0:08:19 > 0:08:23- Can you guess why we're here? - TOGETHER: No, Nina!
0:08:23 > 0:08:26This place is perfect to find clown outfits
0:08:26 > 0:08:29and that's what we need for this experiment!
0:08:30 > 0:08:36Oh! Circus? Clowns? Dressing up? Yippee!
0:09:03 > 0:09:06OK! I think that's enough clowning around.
0:09:06 > 0:09:09Ha-ha! How do the costumes make you feel?
0:09:09 > 0:09:13I like all the colours, but the costume's far too big!
0:09:13 > 0:09:16And the clothes are very baggy.
0:09:16 > 0:09:21- The trousers are bunched up around my ankles.- Yes, you're right.
0:09:21 > 0:09:25Because the costumes are too big, the material's gone all wrinkly.
0:09:28 > 0:09:30How do your normal clothes feel now?
0:09:30 > 0:09:31They fit properly.
0:09:31 > 0:09:35Yes, our own clothes are a perfect fit, look...
0:09:35 > 0:09:37no wrinkles.
0:09:37 > 0:09:38So far we've found out
0:09:38 > 0:09:42that when some things get wet they absorb water,
0:09:42 > 0:09:45and when they absorb water they get bigger.
0:09:45 > 0:09:49And we've found that when we wear clothes that are too big for us,
0:09:49 > 0:09:50they go wrinkly.
0:09:50 > 0:09:54So...could it be that our fingers go wrinkly in the bath
0:09:54 > 0:09:56because they've got bigger?
0:09:56 > 0:10:00I know an experiment that should help us find out.
0:10:00 > 0:10:02Let's go back to the lab!
0:10:04 > 0:10:08OK, first, we're going to cut out the oval shape
0:10:08 > 0:10:10on these pieces of paper. OK?
0:10:10 > 0:10:11Off you go!
0:10:14 > 0:10:17Now, do be careful and watch those fingers!
0:10:17 > 0:10:20Scissors can be very sharp.
0:10:20 > 0:10:21Thanks, Felix.
0:10:27 > 0:10:32Ooh, I love the sound of scissors. Snip, snip, snip!
0:10:39 > 0:10:42Brilliant! We're going to place our oval pieces of paper
0:10:42 > 0:10:46on top of our fingertips. So, Florence, you come round.
0:10:46 > 0:10:49Pick your best oval. Put yours there.
0:10:49 > 0:10:51Levi, you can put yours there.
0:10:51 > 0:10:53And give it a little push in,
0:10:53 > 0:10:56so it sits nice and flat.
0:10:56 > 0:11:01Brilliant. I'm giving you a beaker with a little bit of water each.
0:11:01 > 0:11:04Levi, that's for you. Florence, one for you.
0:11:04 > 0:11:07Carefully, guys, we're going to pour a little water
0:11:07 > 0:11:12onto your fingertip. Now, watch closely for any changes, OK?
0:11:13 > 0:11:15That's good...
0:11:15 > 0:11:19Something's happening! The paper's changing shape!
0:11:19 > 0:11:21What's happened to the paper?
0:11:21 > 0:11:27It's gone a little bit bumpy and soggy as well.
0:11:27 > 0:11:30- Would you say they've gone a bit wrinkly?- Mm-hm.
0:11:30 > 0:11:34The paper has soaked up some water and turned wrinkly,
0:11:34 > 0:11:38because absorbing the water has made the paper get bigger.
0:11:38 > 0:11:42So this bit of paper is now too big to fit in the hollow,
0:11:42 > 0:11:47so it's had to wrinkle up, like the skin on our fingertips does!
0:11:49 > 0:11:53So your question was, why do our fingers go wrinkly in the bath?
0:11:53 > 0:11:55And we've answered it!
0:11:55 > 0:11:58We discovered some things absorb water
0:11:58 > 0:12:00and that makes them get bigger.
0:12:00 > 0:12:04When things are too big, like clown costumes, they go all wrinkly.
0:12:04 > 0:12:08And in the bath, the skin on the tips of our fingers absorbs water
0:12:08 > 0:12:10and gets bigger.
0:12:10 > 0:12:13Because our fingers stay the same size,
0:12:13 > 0:12:15when the skin gets too big,
0:12:15 > 0:12:17it goes all wrinkly.
0:12:17 > 0:12:20But not to worry, because when it dries out,
0:12:20 > 0:12:22the wrinkles all disappear.
0:12:22 > 0:12:24I hope that answers your question.
0:12:24 > 0:12:27- CHILDREN: Thanks, Nina! Bye! - Bye!
0:12:31 > 0:12:35If you want to know more about the science all around us,
0:12:35 > 0:12:39go to the Nina section on the CBeebies website. Have fun!
0:12:42 > 0:12:43Lab coat on, Nina?
0:12:43 > 0:12:45Lab coat on, Ollie.
0:12:45 > 0:12:47Safety gloves on, Nina?
0:12:47 > 0:12:49Safety gloves on, Felix.
0:12:49 > 0:12:51Don't forget your goggles, Nina.
0:12:51 > 0:12:55Goggles are on, Luke. I think we're ready!
0:12:56 > 0:12:58# We do experiments in the lab
0:12:58 > 0:13:02- # In the lab! - Shooby-dooby, in the lab
0:13:02 > 0:13:04# Bubbling experiments in the lab
0:13:04 > 0:13:05# In the lab!
0:13:05 > 0:13:08# Go, Nina, in the lab
0:13:08 > 0:13:11# Fizzing and popping Steam and smoke
0:13:11 > 0:13:14# We need protection Don't we, folks?
0:13:14 > 0:13:18# We always put our safety first
0:13:18 > 0:13:20# Shooby-dooby, dooby-dooby
0:13:20 > 0:13:22# We do experiments in the lab
0:13:22 > 0:13:23# In the lab!
0:13:23 > 0:13:25# Go, Nina! #
0:13:25 > 0:13:26It's been a marvellous day -
0:13:26 > 0:13:31all that touching and feeling to explore our fingertips.
0:13:31 > 0:13:36Oh, I've had a brilliant day - hearing all those great water noises!
0:13:36 > 0:13:38Splish-splash!
0:13:38 > 0:13:40I really enjoyed myself today -
0:13:40 > 0:13:43those soil pellets had a great earthy smell.
0:13:43 > 0:13:46I've had a fabby day!
0:13:46 > 0:13:52Especially the dressing up! Oh, that was so funny! Ha-ha-ha!
0:13:52 > 0:13:55Ah, it's been such a great day, man.
0:13:55 > 0:13:59Seeing the paper wrinkle up, just like Nina's fingertips.
0:13:59 > 0:14:01Amazing!
0:14:01 > 0:14:04Our day's been bursting with experiments.
0:14:04 > 0:14:06I hope you've enjoyed it. See you soon, bye!
0:14:06 > 0:14:08ALL: Bye!
0:14:08 > 0:14:10Subtitles by Red Bee Media Ltd