0:00:06 > 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 > 0:00:15# She makes sense of her senses While helping all her fans
0:00:15 > 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 > 0:00:33# Luke, he helps us with our eyes and Felix with our touch
0:00:33 > 0:00:35# Ollie sniffs out smells 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 > 0:00:48- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:00:48 > 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 > 0:01:01Oh, hello! It started raining when I was walking to the lab today,
0:01:01 > 0:01:07but I had my waterproof jacket with me, which kept me nice and dry.
0:01:07 > 0:01:11- Oh, it suits you, Mr Skeleton! - BEEPING
0:01:11 > 0:01:15I hear a beep, I see a flash. I wonder what they're going to ask.
0:01:18 > 0:01:23- ALL: Hi, Nina!- Hi, guys! - We've got a question for you, Nina.
0:01:23 > 0:01:27- Why do we have skin? - That's a great question!
0:01:27 > 0:01:30We've all got skin, but what does it do?
0:01:30 > 0:01:34Why don't you come down to my lab and we'll investigate.
0:01:34 > 0:01:37- ALL: See you soon, Nina! Bye!- Bye!
0:01:37 > 0:01:42I'll need some help to answer this and I know just who to ask.
0:01:42 > 0:01:44OK, Neurons! Time to get to work!
0:02:01 > 0:02:05- ALL: Neurons at the ready, Nina!- OK.
0:02:05 > 0:02:08Today's question is - why do we have skin?
0:02:08 > 0:02:11Which Neuron will help us find the answer?
0:02:11 > 0:02:14ALL: Me! Me! Me Me!
0:02:14 > 0:02:17Will it be fabulous Felix?
0:02:17 > 0:02:21I can help so very much if you need the sense of touch.
0:02:21 > 0:02:23Will it be beautiful Belle?
0:02:23 > 0:02:25I send messages to brain from ear,
0:02:25 > 0:02:28if there's a sound, I'll help you hear.
0:02:28 > 0:02:29Will it be lovely Luke?
0:02:29 > 0:02:33For looking and seeing, day or night, I'll help you
0:02:33 > 0:02:36- with your sense of sight. - Will it be awesome Ollie?
0:02:36 > 0:02:39If it's pongy or whiffy but you can't tell,
0:02:39 > 0:02:41I'll help you with your sense of smell.
0:02:41 > 0:02:45- Or will it be baby Bud? - Sour, salty, bitter or sweet?
0:02:45 > 0:02:47I'm your taste buddy whenever you eat.
0:02:51 > 0:02:53It's Felix!
0:02:55 > 0:02:59ALL: Go, Felix! Go, Felix! Go, Felix!
0:03:02 > 0:03:06Marvellous! A little touch can mean so much, Nina.
0:03:06 > 0:03:08So, why do we have skin?
0:03:08 > 0:03:12Because our lovely, soft skin is something we touch,
0:03:12 > 0:03:16I think Felix is the neuron helping us today.
0:03:16 > 0:03:19But stand by, Neurons. I may need help from all of you.
0:03:19 > 0:03:23Right, I need to get the lab ready before the experimenters arrive!
0:03:23 > 0:03:28Jordan likes fish fingers, Harry likes spaghetti
0:03:28 > 0:03:30and Kieran loves computer games.
0:03:30 > 0:03:34But they all want to know why they have skin,
0:03:34 > 0:03:38so today, Jordan, Harry and Kieran become the experimenters!
0:03:41 > 0:03:46- Hi, guys!- Hi, Nina!- Welcome to my science lab! Come on in!
0:03:46 > 0:03:47Now, your question is,
0:03:47 > 0:03:51"Why do we have skin?" Which is a great question,
0:03:51 > 0:03:54- but why do you want to know? - We have lots of skin.
0:03:54 > 0:03:56But we want to know why.
0:03:56 > 0:04:00Well, our brilliant bodies certainly have a lot of skin
0:04:00 > 0:04:02and there must be a good reason why.
0:04:02 > 0:04:05We need to do some investigating to find out.
0:04:05 > 0:04:08For our first experiment, we'll use our senses.
0:04:08 > 0:04:12ALL: Wooo-hoo! A senses experiment! We're ready, Nina!
0:04:12 > 0:04:18- Now, who knows where our skin is? - All over our body.- That's right.
0:04:18 > 0:04:23And if we look in our hair, there's even skin under there too.
0:04:23 > 0:04:29We call this our scalp, and the fact we have skin
0:04:29 > 0:04:33over our bodies is important in understanding what skin is for.
0:04:33 > 0:04:36I'm setting you a challenge to find out more.
0:04:36 > 0:04:39I'll get the things we need from the storeroom.
0:04:40 > 0:04:44- I wonder what Nina is looking for. - I'm sure you know what these are.
0:04:44 > 0:04:47- Backpacks.- That's right. They're backpacks
0:04:47 > 0:04:50that you maybe use for school. There you go.
0:04:50 > 0:04:54So, have a look inside them and take everything out.
0:05:03 > 0:05:06- Oh!- A sandwich!
0:05:06 > 0:05:07And an apple.
0:05:08 > 0:05:10Pumps...
0:05:10 > 0:05:16- Wow!- A banana and a sandwich! This is making me really hungry!
0:05:16 > 0:05:21I'll take these, thank you very much. Thank you, Jordan.
0:05:21 > 0:05:26Now, your challenge is to pick everything up
0:05:26 > 0:05:29and take it back to the storeroom in one go.
0:05:44 > 0:05:49- Why are you dropping things? - Because we have too many things.
0:05:51 > 0:05:53Now, careful with the apple.
0:05:53 > 0:05:55Ooh!
0:05:55 > 0:05:58Oh! Poor apple!
0:05:58 > 0:06:01I was able to carry everything over quite easily.
0:06:01 > 0:06:05- Why was that?- Because everything was inside the bags.
0:06:05 > 0:06:09Exactly! And I didn't drop a thing! OK, boys.
0:06:09 > 0:06:11Put everything back on the desks.
0:06:11 > 0:06:15You see, it's a lot easier to carry things if you use a rucksack.
0:06:15 > 0:06:20And our skin is like a rucksack for our brilliant bodies.
0:06:20 > 0:06:24Underneath our skin are lots and lots of different things.
0:06:24 > 0:06:27- Can you tell me what some of them are?- Bones and heart.
0:06:27 > 0:06:31- Blood and lungs.- That's right.
0:06:31 > 0:06:35And our super skin is like a big bag that keeps all of these
0:06:35 > 0:06:38important parts together and protects them.
0:06:38 > 0:06:40But, what other cool stuff does our skin do?
0:06:40 > 0:06:45Well, to find out the answer, we need to muck about a bit,
0:06:45 > 0:06:48and I know just where. Let's go, experimenters!
0:06:54 > 0:06:57- Off we go for another adventure. - Nina said we can muck about!
0:06:57 > 0:07:00Hooray! Playtime!
0:07:00 > 0:07:02And I thought this was a serious experiment.
0:07:02 > 0:07:06- How can we muck about here? - I don't know, Luke.
0:07:06 > 0:07:10But sharpen your senses, everyone. We're here!
0:07:10 > 0:07:12Right, experimenters.
0:07:12 > 0:07:15Now we're going to pretend that this car is our body.
0:07:15 > 0:07:19Our body? But it's filthy, Nina.
0:07:19 > 0:07:23That's right. But for this experiment, that's a good thing.
0:07:23 > 0:07:26In fact, we could do with making it even dirtier.
0:07:26 > 0:07:30- Yes!- That's what I meant by "mucking about". Ready, everyone?
0:07:30 > 0:07:32ALL: Yes!
0:07:43 > 0:07:50- I love the sound of all that sloshing water.- That should do nicely.
0:07:50 > 0:07:52Now that we've got it really dirty,
0:07:52 > 0:07:56let's get inside and go through the car wash. Come on!
0:07:56 > 0:07:59Ooh, at least the inside's nice and clean.
0:08:03 > 0:08:08What a fabulous noisy noise! Brrrrrrrr!!!
0:08:08 > 0:08:12Look at all that water pouring down the windows!
0:08:12 > 0:08:14Amazing!
0:08:14 > 0:08:17There lots of water outside, but none of it's getting inside
0:08:17 > 0:08:19and making us wet.
0:08:19 > 0:08:23That's because all the doors and windows are shut tight.
0:08:23 > 0:08:29- The car is all sealed up. - A seal pup?! Where? Wow!
0:08:29 > 0:08:34- Arrup! Arrup!- Not a seal pup! The car is sealed up!
0:08:34 > 0:08:39And it's just what our skin does for our brilliant bodies!
0:08:39 > 0:08:42Our skin is waterproof, so it keeps water out
0:08:42 > 0:08:46when we're in the bath, the shower, even walking in the rain.
0:08:46 > 0:08:49And our skin also keeps out dirt and germs too.
0:08:49 > 0:08:53Germs are tiny, invisible things that can make us feel ill.
0:08:53 > 0:08:56This is why we must always wash our hands before eating -
0:08:56 > 0:08:59to stop germs spreading into our mouths.
0:08:59 > 0:09:03There! Our car is nice and clean again!
0:09:03 > 0:09:06We found out earlier it's our skin's job to keep our insides in.
0:09:06 > 0:09:08A bit like a bag for a body.
0:09:08 > 0:09:13It's also brilliant at keeping out water, dirt and germs.
0:09:13 > 0:09:17But our super skin does other important jobs too.
0:09:17 > 0:09:21- So let's go back to the lab for our final experiment.- ALL: Yeah!
0:09:24 > 0:09:29Let's have a closer look at our skin through our magnifying glasses!
0:09:29 > 0:09:35- Oh... So, what can you see? - I can see hairs.- That's right.
0:09:35 > 0:09:40We don't just have hair on our heads. We have hair on our skin too.
0:09:40 > 0:09:42It's all over our bodies.
0:09:42 > 0:09:48In fact, the only places we don't have hair are on our lips
0:09:48 > 0:09:52and on the palms of our hands. Magnifying glasses down!
0:09:52 > 0:09:55Let's all rub our forearms with the balloons
0:09:55 > 0:09:58and see what happens to those little hairs.
0:10:01 > 0:10:05Then lift the balloon a tiny bit above your skin
0:10:05 > 0:10:08and see what happens to the little hairs.
0:10:08 > 0:10:12- Wow! Would you look at that!- What's happening to the little hairs?
0:10:12 > 0:10:15- They're standing up.- That's right.
0:10:15 > 0:10:17We made them stand up by rubbing them with a balloon
0:10:17 > 0:10:20to create something called static electricity.
0:10:20 > 0:10:26But sometimes the hairs on our bodies stand up all by themselves
0:10:26 > 0:10:29and we call this having goosebumps. Have you ever had goosebumps?
0:10:29 > 0:10:32- Yes.- How were you feeling when you got them?
0:10:32 > 0:10:35- Cold.- Feeling cold? That's right.
0:10:35 > 0:10:41When we feel cold, the little hairs on our skin stand up on end.
0:10:41 > 0:10:44They do this to trap warm air, which is near our skin,
0:10:44 > 0:10:46and stop it from escaping. That makes us feel warmer.
0:10:46 > 0:10:51So, our skin helps us to stay warm when we're cold.
0:10:51 > 0:10:53But it can also help us if we feel hot.
0:10:53 > 0:10:56I need you to put your goggles on to protect your eyes,
0:10:56 > 0:11:01because I'm going to spray your face with a little bit of water.
0:11:01 > 0:11:03Here I come. Are you ready?
0:11:03 > 0:11:06Very good. OK, Harry?
0:11:08 > 0:11:10Are you ready?
0:11:11 > 0:11:13He-he-he-he-he!
0:11:13 > 0:11:19- That must feel SO refreshing!- How does that water feel?- Nice and cool.
0:11:19 > 0:11:22Have you guys ever been in a really warm place,
0:11:22 > 0:11:27- or been running around so much you felt really hot?- Yes, Nina.
0:11:27 > 0:11:31When that happens, our body needs to cool down quickly.
0:11:31 > 0:11:37- Can anyone think how it does this? - Cos it makes you sweat.- That's right!
0:11:37 > 0:11:39Our skin releases little drops of sweat
0:11:39 > 0:11:43through things called sweat glands. It's this sweat
0:11:43 > 0:11:45that takes the heat away from our body
0:11:45 > 0:11:49and cools us down. So, our super skin helps us to cool down
0:11:49 > 0:11:54when we're hot and helps us warm up when we're cold. Brilliant!
0:11:59 > 0:12:04Your question was - why do we have skin? And I think we've answered it.
0:12:04 > 0:12:07It's like a protective bag for our brilliant bodies,
0:12:07 > 0:12:11which holds all of our insides in place.
0:12:11 > 0:12:15It also keeps out dirt and germs that could make us feel ill.
0:12:15 > 0:12:19And it's waterproof, so it keeps water out when we're in the bath.
0:12:19 > 0:12:24It's also important in making sure we're not too hot or too cold.
0:12:24 > 0:12:28The little hairs on our skin stand up when we're cold
0:12:28 > 0:12:30and trap warm air to warm us up.
0:12:30 > 0:12:34And when we're hot, our skin makes sweat to cool us down.
0:12:34 > 0:12:38- So I hope that's answered your question.- ALL: Thanks, Nina. Bye!
0:12:38 > 0:12:40You're welcome! Bye!
0:12:44 > 0:12:48If you want to find out more about the science that's all around us,
0:12:48 > 0:12:53go to the Nina section on the CBeebies website. Have fun.
0:12:53 > 0:12:57# Hearts beating! Fingers feeling! Mouths eating! And your brain!
0:12:57 > 0:13:02# Brilliant bodies, brilliant bodies
0:13:02 > 0:13:04# Inside and ou-ou-out
0:13:04 > 0:13:07# Brilliant bodies, brilliant bodies
0:13:07 > 0:13:09# Come on, let's find out about
0:13:09 > 0:13:12# Our handy hands and bendy knees
0:13:12 > 0:13:16# Stretchy backs And noses that sneeze
0:13:16 > 0:13:20- # We all have brilliant bodies - Brilliant bodies!
0:13:20 > 0:13:25# Every part has a job to do Even scabs and ear wax too
0:13:25 > 0:13:30- # We all have brilliant bodies - Brilliant bodies!
0:13:30 > 0:13:35# Brilliant bodies, brilliant bodies Lashes to protect our eyes
0:13:35 > 0:13:42# Brilliant bodies, brilliant bodies And don't forget to exercise. #
0:13:42 > 0:13:44I've had a fabby day!
0:13:44 > 0:13:48It was so funny watching the experimenters trying to carry
0:13:48 > 0:13:52- all those things without a bag. - It's been such a great day!
0:13:52 > 0:13:58I loved looking through the magnifying glass at all those hairs!
0:13:58 > 0:14:01Remember, everyone's body is different,
0:14:01 > 0:14:04but they're all brilliant. See you again soon! Bye!
0:14:04 > 0:14:06Bye!