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 our 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 > 0:00:21- # Fingers - Fingers!
0:00:21 > 0:00:23- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:00:23 > 0:00:30# Every day we use our senses Wherever we may go
0:00:30 > 0:00:31- # Tongue - Tongue!
0:00:31 > 0:00:33- # Fingers - Fingers!
0:00:33 > 0:00:36- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:00:36 > 0:00:39# Nina and the Neurons find out what you need to know
0:00:39 > 0:00:41# Nina and the Neurons find out what you need to know
0:00:41 > 0:00:44# Luke, he helps us with our eyes and Felix with our touch
0:00:44 > 0:00:47# Ollie sniffs out smells and scents And Belle, she hears so much
0:00:47 > 0:00:50# Bud is Ollie's brother, he helps us with our taste
0:00:50 > 0:00:53# They're Nina's little Neurons And they're coming to your place!
0:00:53 > 0:00:55- # Touch your tongue - Tongue!
0:00:55 > 0:00:56- # Fingers - Fingers!
0:00:56 > 0:01:00- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:01:00 > 0:01:02# Nina and the Neurons find out what you need to know
0:01:02 > 0:01:05# Nina and the Neurons find out what you need to know
0:01:05 > 0:01:07# Oh yeah! #
0:01:10 > 0:01:14Oh, hi! Today's show is all about mixing things together.
0:01:14 > 0:01:20Some things mix easily, like water and paint when you're painting
0:01:20 > 0:01:22and some things don't - watch this.
0:01:22 > 0:01:29- I'm going to pour some oil into this water. Do you think it'll mix? - Yeah.- Let's see.
0:01:31 > 0:01:32No, it doesn't.
0:01:32 > 0:01:38The oil isn't mixing with the water, it's sitting like a layer on top.
0:01:38 > 0:01:42Now I'm going to put some drops of colour into this water here.
0:01:42 > 0:01:46Look at that! It's mixing into the water.
0:01:46 > 0:01:50The colour is mostly made of water so it mixes easily.
0:01:50 > 0:01:53Now, what do you think will happen
0:01:53 > 0:01:57if I put drops of colour into the oil?
0:01:57 > 0:02:01- Will it mix together like it did with the water, or not?- No.
0:02:01 > 0:02:03Look at that!
0:02:03 > 0:02:07It doesn't mix in at all, it just stays together.
0:02:07 > 0:02:10That's because the colour is mostly made of water
0:02:10 > 0:02:13and we already know oil and water don't mix.
0:02:13 > 0:02:16There's one more thing I want to show you.
0:02:16 > 0:02:17If I use my pencil...
0:02:21 > 0:02:24Isn't that brilliant! Fantastic.
0:02:24 > 0:02:29I'm poking through the colour there, pushing through the oil into the water,
0:02:29 > 0:02:33the colour doesn't mix with the oil, but it does with the water,
0:02:33 > 0:02:38so as soon as it touches, it bursts into loads of colour.
0:02:38 > 0:02:41Oh, thank you, thank you very much.
0:02:41 > 0:02:45- Thank you for coming and I shall see you all again soon. Bye!- Bye!
0:02:45 > 0:02:49I hear a beep, I see a flash. I wonder what they're going to ask.
0:02:54 > 0:02:57Hi, Nina, I've got a question for you.
0:02:57 > 0:03:00Why is your tongue wet?
0:03:00 > 0:03:02Great question!
0:03:02 > 0:03:03Why IS your tongue wet?
0:03:05 > 0:03:08Hmm, mine's definitely wet, but I wonder why?
0:03:08 > 0:03:11Fantastic! I'd love to help you find out.
0:03:11 > 0:03:13- Thanks, Nina.- See you soon.
0:03:15 > 0:03:18I think we'll need help to answer this one
0:03:18 > 0:03:19and I know just who to ask.
0:03:19 > 0:03:22OK, Neurons, time to get to work.
0:03:37 > 0:03:40Neurons at the ready, Nina.
0:03:40 > 0:03:44OK, today's question is why is your tongue wet?
0:03:44 > 0:03:48Which Neuron do you think would be best to help us find the answer?
0:03:48 > 0:03:50- Me!- Me!- Oh, me!
0:03:50 > 0:03:51Me!
0:03:51 > 0:03:54Will it be fabulous Felix?
0:03:54 > 0:03:57I can help so very much If you need the sense of touch.
0:03:57 > 0:03:59Will it be beautiful Belle?
0:03:59 > 0:04:04I send messages, brain to ear If there's a sound, I'll help you hear
0:04:04 > 0:04:06Will it be lovely Luke?
0:04:06 > 0:04:10For lookin' and seein', day or night I'll help you with your sense of sight
0:04:10 > 0:04:12Will it be awesome Ollie?
0:04:12 > 0:04:15If it's pongy or wiffy, but you can't tell
0:04:15 > 0:04:17My messages help your sense of smell.
0:04:17 > 0:04:19Or will it be baby Bud?
0:04:19 > 0:04:22Sour, salty, bitter or sweet
0:04:22 > 0:04:25I'm your taste buddy whenever you eat.
0:04:27 > 0:04:30- It's Bud.- Yippee!
0:04:32 > 0:04:35Go, Bud! Go, Bud! Go, Bud!
0:04:35 > 0:04:38Go, Bud! Go, Bud! Go, Bud!
0:04:38 > 0:04:40Go, Bud.
0:04:40 > 0:04:42Give me a taste of the action, Nina.
0:04:42 > 0:04:47Today's question is about your tongue so Bud will be helping us out.
0:04:50 > 0:04:53OK then, let's go.
0:05:15 > 0:05:20'In the town of Aviemore lives Corinne and her mum and dad.'
0:05:20 > 0:05:24'They're a regular family, but today, for one day only,
0:05:24 > 0:05:26'they are...
0:05:26 > 0:05:30'the Experimenters!'
0:05:35 > 0:05:38- Hi, everyone.- Hi, Nina.
0:05:38 > 0:05:40- Hi, Corrine, how are you?- Fine.
0:05:40 > 0:05:44Good. Now you want to know why you've got a wet tongue.
0:05:44 > 0:05:46So, let me see the tongue, please.
0:05:46 > 0:05:51Are you sticking your tongue out at me?! I'm only joking.
0:05:51 > 0:05:55I think we'll have to do some experiments to answer your question
0:05:55 > 0:06:01but let's start with having a good think about all the things we do with our wet tongues.
0:06:01 > 0:06:02Hmm...
0:06:02 > 0:06:08'Corinne is thinking about how she uses her wet tongue to stick her stickers in her sticker book.
0:06:08 > 0:06:10'Oh, I love stickers!'
0:06:10 > 0:06:14'Corinne's dad uses his wet tongue to lick his lips
0:06:14 > 0:06:18'ready for eating his yummy sandwich.'
0:06:18 > 0:06:21'Mmm.'
0:06:23 > 0:06:28'Corinne's mum uses her wet tongue to stick stamps on envelopes.'
0:06:28 > 0:06:32We've managed to think of loads of things we do with our tongues. That's fantastic.
0:06:32 > 0:06:34Can you think of any more?
0:06:36 > 0:06:42But we still haven't answered your question, Corinne, as to WHY our tongues are wet.
0:06:42 > 0:06:45I think it's time for an experiment.
0:06:47 > 0:06:49Ready, Bud?
0:06:50 > 0:06:57It's my big moment! Standing by, ready to send lots of messages!
0:06:59 > 0:07:03So, we know we use our wet tongues for lots of things,
0:07:03 > 0:07:07but do you know what happens when you don't have a wet tongue?
0:07:07 > 0:07:10Have you ever had a dry tongue before?
0:07:10 > 0:07:15No? Well, you're about to. This is what we're going to do,
0:07:15 > 0:07:18we're going to dry our tongues with a paper towel,
0:07:21 > 0:07:23and then once you've done that...
0:07:23 > 0:07:27Ha, ha! Listen to Nina - she can't talk properly!
0:07:27 > 0:07:31You see, you need your tongue for more than just tasting,
0:07:31 > 0:07:34it also helps you to talk.
0:07:34 > 0:07:37It's really hard to talk when your tongue's dry.
0:07:37 > 0:07:43What I was trying to tell you is you've got to keep your tongue out so it doesn't get wet again.
0:07:43 > 0:07:45So if you all take a paper towel,
0:07:45 > 0:07:48here's one for you, take a paper towel,
0:07:48 > 0:07:50I'd like you to dry your tongues.
0:07:50 > 0:07:52Lovely.
0:07:52 > 0:07:55And keep them sticking out.
0:07:55 > 0:07:58And I'd like you to take a little piece of cracker each
0:07:58 > 0:08:01and pop it on your tongue,
0:08:01 > 0:08:05put it in your mouth and tell me, can you taste that?
0:08:05 > 0:08:07No?
0:08:07 > 0:08:09Hmm, interesting.
0:08:09 > 0:08:12OK, chew that up and have a drink of water.
0:08:12 > 0:08:16Lovely. Have another piece of cracker, pop it on your tongue,
0:08:16 > 0:08:21- close your mouth, don't chew - can you taste anything this time?- Mmm.
0:08:21 > 0:08:24Brilliant, you can chew that up now.
0:08:24 > 0:08:29So we know you need a wet tongue so you can taste things better
0:08:29 > 0:08:33and what makes your tongue wet is saliva.
0:08:33 > 0:08:39Our mouth makes loads of it all the time, in fact it makes about this much every day.
0:08:39 > 0:08:43- Er, gross! - I know - it is a lot, isn't it?
0:08:43 > 0:08:49But we need saliva to taste things, because when we chew our food or have a drink,
0:08:49 > 0:08:53the saliva mixes with that and that's how we taste things.
0:08:53 > 0:08:56So, Corinne, that's why our tongues are wet.
0:08:57 > 0:08:58Thanks, Nina.
0:08:58 > 0:09:01Another brilliant experiment, Nina.
0:09:01 > 0:09:07So your tongue has to be wet otherwise it doesn't work properly -
0:09:07 > 0:09:09that's so clever.
0:09:09 > 0:09:13Do you want to go for a walk and look for some more wet tongues?
0:09:13 > 0:09:17Wey-hey, come on, let's go, let's go, let's go!
0:09:21 > 0:09:25Ah! Look at those lovely dogs!
0:09:25 > 0:09:27They're called Moss and Molly.
0:09:27 > 0:09:29I wonder if they've got wet tongues too.
0:09:29 > 0:09:35Look, some Highland cows. And a little baby one.
0:09:35 > 0:09:38Just like me!
0:09:38 > 0:09:40NINA LAUGHS
0:09:40 > 0:09:44Oh, look - we're not the only one with wet tongues!
0:09:44 > 0:09:47Look at the cow!
0:09:49 > 0:09:53Look! Even the dogs have got wet tongues -
0:09:53 > 0:09:56I bet they'll be good at tasting too.
0:09:56 > 0:09:59I've had a lovely walk - the fresh air's done me the world of good.
0:09:59 > 0:10:02I'd better be going, I'm late to meet my friends.
0:10:02 > 0:10:03- Bye, Nina.- Bye, Nina.
0:10:03 > 0:10:05Bye, Nina.
0:10:18 > 0:10:23Here we are. My friends, Alice, Ruben and Alicia
0:10:23 > 0:10:27have been talking about mouth-watering surprises for ages
0:10:27 > 0:10:30and as we've been finding out about wet tongues,
0:10:30 > 0:10:35I thought today would be the perfect day to let them show me. I can't wait!
0:10:35 > 0:10:38- Hi, you guys.- Hi, Nina.
0:10:38 > 0:10:42I can't wait to see what you've got for me. Where are we going?
0:10:42 > 0:10:44There.
0:10:44 > 0:10:49I was so busy looking for you guys, I hadn't noticed all the fantastic food.
0:10:49 > 0:10:53It's making my mouth water just thinking about it.
0:10:53 > 0:10:55- Shall we go and taste it?- Yeah.
0:10:55 > 0:10:58Wow. That food look delicious.
0:10:58 > 0:11:01Come on, Nina, let's go!
0:11:01 > 0:11:05Be patient, Bud, we're just going.
0:11:05 > 0:11:06Come on, let's go.
0:11:09 > 0:11:11Gracias.
0:11:15 > 0:11:17Gracias.
0:11:33 > 0:11:37- We've got loads of mouth-watering treats. Are you three ready?- Yes!
0:11:37 > 0:11:41OK - one, two, three, go!
0:12:04 > 0:12:08Mmm. I am so glad we have wet tongues
0:12:08 > 0:12:14- because if we didn't, we wouldn't be able to enjoy and taste all this yummy food, would we?- No.
0:12:14 > 0:12:17No. I've eaten so much and it's all been lovely,
0:12:17 > 0:12:22but I really better be getting back to the science centre, so bye, everyone. Bye-bye!
0:12:34 > 0:12:36# It's been a busy, busy day
0:12:36 > 0:12:39# Questions answered, experiments done
0:12:39 > 0:12:42# We've all used our senses in so many ways
0:12:42 > 0:12:46# Tell me, Neurons, what have you done today? #
0:12:46 > 0:12:49Wow-wee, I've been a busy baby Bud.
0:12:49 > 0:12:54When those tongues were dry, I had to work super hard
0:12:54 > 0:12:57because you can't taste properly with a dry tongue.
0:12:57 > 0:13:00It needs to be nice and wet.
0:13:00 > 0:13:02I was really busy.
0:13:02 > 0:13:05I was trying to help you out, little bro,
0:13:05 > 0:13:10especially when the tongues were dry - I was trying really hard to smell the crackers.
0:13:10 > 0:13:13There were loads of sounds to keep me busy.
0:13:13 > 0:13:17Crackers being crunched and lips being licked.
0:13:17 > 0:13:19I was working hard too, you know.
0:13:19 > 0:13:23There was such a lot to feel - a dry tongue, a wet tongue,
0:13:23 > 0:13:28the hard, rough crackers which felt soft and soggy when they were wet.
0:13:28 > 0:13:30Yeah, I was pretty busy.
0:13:30 > 0:13:34Looking at all those big, wet tongues on the walk was fun.
0:13:36 > 0:13:38# Nina and the Neurons
0:13:38 > 0:13:40# Nina and the Neurons... #
0:13:40 > 0:13:47That was great fun. I hope you've had a sensational time too. Bye!
0:13:47 > 0:13:49Bye!
0:13:49 > 0:13:53# Nina and the Neurons #
0:13:53 > 0:13:56Subtitles by Red Bee Media Ltd