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 > 0:00:14# 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 > 0:00:21- # Fingers.- Fingers!
0:00:21 > 0:00:24- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:00:24 > 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 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 > 0:00:54# They're Nina's little neurons And they're coming to your place!
0:00:54 > 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 > 0:01:03# Nina and the Neurons find out what you need to know
0:01:03 > 0:01:05# Nina and the Neurons find out what you need to know
0:01:05 > 0:01:07# Oh, yeah! #
0:01:07 > 0:01:09Hi, everyone.
0:01:09 > 0:01:12Hi, Nina!
0:01:12 > 0:01:14Today we'll do an experiment
0:01:14 > 0:01:18with something white and grainy that looks like this.
0:01:18 > 0:01:21Can anyone guess what it is?
0:01:21 > 0:01:23- Salt!- Sugar!- Salt!
0:01:23 > 0:01:27Salt, you are right. Well done.
0:01:27 > 0:01:30Does anyone know where to find salt?
0:01:30 > 0:01:32In a kitchen!
0:01:32 > 0:01:35Yes, you might find it in a kitchen.
0:01:35 > 0:01:40Salt is used for cooking, although, too much salt isn't good for you.
0:01:40 > 0:01:45Salt can be found in other places. Let's look at this, here.
0:01:45 > 0:01:51We have some water. It's not normal tap water. It's water from the sea.
0:01:51 > 0:01:57Let's see what happens when we put this into a hot frying pan.
0:01:57 > 0:01:59I need my goggles on for this.
0:01:59 > 0:02:03I'm going to put a couple of small scoops of water
0:02:03 > 0:02:06into the frying pan.
0:02:06 > 0:02:11Oh! And straight away the frying pan's heating up the water
0:02:11 > 0:02:14and it's starting to bubble and boil away.
0:02:14 > 0:02:18Already we can see the water's disappearing.
0:02:18 > 0:02:21The frying pan's that hot!
0:02:21 > 0:02:23Now look really, really closely,
0:02:23 > 0:02:27lots of little white spots and patches are appearing.
0:02:28 > 0:02:32And now all the water's boiled away,
0:02:32 > 0:02:35look what's been left behind.
0:02:35 > 0:02:36AUDIENCE: Ah!
0:02:36 > 0:02:38What do you think that is?
0:02:38 > 0:02:39Salt!
0:02:39 > 0:02:41That's right, salt.
0:02:41 > 0:02:46And that's because the water in the sea is actually full of salt.
0:02:46 > 0:02:48We just can't normally see it.
0:02:48 > 0:02:50APPLAUSE
0:02:50 > 0:02:51BEEP BEEP
0:02:51 > 0:02:55Oh, I hear a beep, I see a flash, I wonder what they're going to ask.
0:02:59 > 0:03:04Hi, Nina. I'm Molly and I have a question for you.
0:03:04 > 0:03:07Why are fish so slimy?
0:03:07 > 0:03:10That's a brilliant question, Molly.
0:03:10 > 0:03:11Why are fish so slimy?
0:03:11 > 0:03:14We'll have lots of fun finding this out.
0:03:14 > 0:03:18- Thanks, Molly, I'll see you soon. - Bye, Nina, see you soon.
0:03:18 > 0:03:20Bye.
0:03:20 > 0:03:23I'm going to need some help to answer this one
0:03:23 > 0:03:24and I know just who to ask.
0:03:24 > 0:03:28OK, Neurons, time to get to work.
0:03:42 > 0:03:44Neurons at the ready, Nina.
0:03:44 > 0:03:48OK, today's question is why are fish so slimy?
0:03:48 > 0:03:53Which Neuron do you think will be most useful to help find the answer?
0:03:53 > 0:03:56- Me!- Me!- Me, me!
0:03:56 > 0:03:59Will it be fabulous Felix?
0:03:59 > 0:04:02I can help so very much if you need the sense of touch.
0:04:02 > 0:04:05Will it be beautiful Belle?
0:04:05 > 0:04:09I send messages from brain to ear, if there's a sound I help you hear.
0:04:09 > 0:04:11Will it be lovely Luke?
0:04:11 > 0:04:16For looking or seeing day or night, I help you with your sense of sight.
0:04:16 > 0:04:17Will it be awesome Ollie?
0:04:17 > 0:04:20If it's pongy or whiffy, but you can't tell,
0:04:20 > 0:04:23my messages help your sense of smell.
0:04:23 > 0:04:24Or will it be baby Bud?
0:04:24 > 0:04:29Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat.
0:04:33 > 0:04:34Ah!
0:04:34 > 0:04:35It's Felix!
0:04:35 > 0:04:36CHEERING
0:04:36 > 0:04:41Go Felix! Go Felix! Go Felix! Go Felix! Go Felix!
0:04:43 > 0:04:48Marvellous! A little touch can mean so much, Nina.
0:04:48 > 0:04:52Thanks, Felix. Today's question is why are fish so slimy?
0:04:52 > 0:04:55As things normally feel slimy, Felix will help us.
0:04:55 > 0:04:58But stand by, Neurons, I may need all of you.
0:05:00 > 0:05:03OK. Let's go.
0:05:19 > 0:05:22Molly's question is about fish.
0:05:22 > 0:05:25Teeny, tiny, little fish big, splashing, flappy fish
0:05:25 > 0:05:28and slippery, sloppery, slimy fish.
0:05:28 > 0:05:32So today for one day only, Molly and her sister Ella become
0:05:32 > 0:05:34The Experimenters!
0:05:36 > 0:05:39Hello, Molly. This must be your sister Ella.
0:05:39 > 0:05:40Hi, Nina.
0:05:40 > 0:05:44Thanks for your question, you asked why are fish so slimy?
0:05:44 > 0:05:46Why do you want to know that?
0:05:46 > 0:05:51Whenever I see fish, they always look very slippery and slimy
0:05:51 > 0:05:53and I was wondering why.
0:05:53 > 0:05:57Oh! Now did I just hear you say they LOOK slimy?
0:05:57 > 0:05:58Yes.
0:05:58 > 0:06:01So you've never felt if fish are slimy?
0:06:01 > 0:06:02No.
0:06:02 > 0:06:05In that case the first thing we need to do
0:06:05 > 0:06:09is find out whether fish really are as slimy as they look.
0:06:09 > 0:06:11That's why we've met at the aquarium.
0:06:11 > 0:06:14- Are you ready to experiment?- Yeah!
0:06:14 > 0:06:16Felix are you ready to help?
0:06:16 > 0:06:19Felix is ready to feel and touch.
0:06:19 > 0:06:21Brilliant, let's go.
0:06:23 > 0:06:25This place is fantastic.
0:06:25 > 0:06:29Have you ever seen so many fish in one place before?
0:06:29 > 0:06:31No, Nina. This is great.
0:06:31 > 0:06:33The fish are amazing!
0:06:33 > 0:06:37Look! There's a shark!
0:06:37 > 0:06:39Oooh! Oh, hello, Mr Shark.
0:06:39 > 0:06:41Wow! Look at that one.
0:06:41 > 0:06:45That one's got like spots.
0:06:45 > 0:06:48I love all the different coloured fish, Nina.
0:06:48 > 0:06:52The fish are fabulous with their fantastic shapes and colours.
0:06:52 > 0:06:55Fish look lovely when they're swimming.
0:06:55 > 0:06:59Their fins move as they swim and their tails swish.
0:06:59 > 0:07:02That's how they move through the water.
0:07:02 > 0:07:07The reason we came here is to answer the question, why are fish slimy?
0:07:07 > 0:07:11The first thing we need to do is let you touch a fish.
0:07:11 > 0:07:14to find out if they really are slimy.
0:07:14 > 0:07:17Did Nina say they were going to touch fish?
0:07:17 > 0:07:23Relax, it's cool, Nina won't be touching sharks or anything.
0:07:23 > 0:07:28Most fish don't like being touched, but these are fine with it
0:07:28 > 0:07:30as long as you're really gentle.
0:07:30 > 0:07:34Gemma, could you bring the fish over, please.
0:07:34 > 0:07:37Oh! I'll brace myself.
0:07:37 > 0:07:42Oh! Oh, he's lovely.
0:07:42 > 0:07:45Oh, wow, this fish is called a ray.
0:07:45 > 0:07:48and as long as you're very gentle with him,
0:07:48 > 0:07:51he quite likes getting stroked on his side.
0:07:51 > 0:07:53That wasn't too bad, Felix.
0:07:53 > 0:07:58No, Nina, not bad at all. Quite fine, actually.
0:07:58 > 0:08:00So, girls, would you like a go?
0:08:00 > 0:08:03Now be very gentle.
0:08:07 > 0:08:12Hee hee hee! I think that big fish is enjoying that!
0:08:12 > 0:08:14Look at his tail going!
0:08:14 > 0:08:15So, how does he feel?
0:08:15 > 0:08:17He feels smooth.
0:08:17 > 0:08:19He feels soft and slimy.
0:08:19 > 0:08:24No doubt about it at all. That fish definitely feels slimy.
0:08:24 > 0:08:28Well, girls, we've seen lots of amazing fish already
0:08:28 > 0:08:33and now we've touched a ray, we know that fish do feel slimy.
0:08:33 > 0:08:36But it still doesn't answer your question
0:08:36 > 0:08:38as to WHY fish are so slimy?
0:08:38 > 0:08:41I know how we can find out more. Come with me!
0:08:44 > 0:08:47OK, to find out why fish are so slimy,
0:08:47 > 0:08:51I think we need to find out more about how they move in the water.
0:08:51 > 0:08:54Look how slow the fish are moving.
0:08:54 > 0:09:00They look nice and relaxed, don't they? I think they deserve a treat.
0:09:00 > 0:09:04It's feeding time! So would you like to feed the fish?
0:09:04 > 0:09:05Yes, please!
0:09:05 > 0:09:08Do all fish eat fruit, Nina?
0:09:08 > 0:09:12Different fish eat different things they find in the water.
0:09:12 > 0:09:15Sometimes they eat bottle tops and bits of litter
0:09:15 > 0:09:18because they think they're food
0:09:18 > 0:09:22and this harms the fish and would harm any animal that ate the fish.
0:09:22 > 0:09:26To keep rivers and beaches clean we must put rubbish in bins.
0:09:26 > 0:09:31Oh! Imagine you were eating a bit of fruit,
0:09:31 > 0:09:36and getting a big mouthful of rubbish instead! Oh, yuk!
0:09:36 > 0:09:40I know. Litter can be really dangerous for fish.
0:09:40 > 0:09:44We should be careful not to leave it behind if we're near water.
0:09:44 > 0:09:48So, let's take a little grey peach.
0:09:48 > 0:09:50There you go.
0:09:50 > 0:09:52Let's feed the fish.
0:10:00 > 0:10:03- Look how fast it's swimming! - They must be hungry.
0:10:03 > 0:10:05Let's give them some banana.
0:10:22 > 0:10:25Do you see how easily they slip past each other?
0:10:25 > 0:10:29Maybe it has something to do with them being so slimy.
0:10:29 > 0:10:32This gives me an idea for another experiment!
0:10:35 > 0:10:40OK, guys, for our last experiment, I've brought you a little present.
0:10:40 > 0:10:43- Toy fish!- Thanks, Nina.
0:10:43 > 0:10:45Have a good feel of them.
0:10:45 > 0:10:48How do they feel? Are they slimy and slippery?
0:10:48 > 0:10:51No, they're not slippery at all, Nina.
0:10:51 > 0:10:55No, Nina, still not slippery at all, I'm afraid.
0:10:55 > 0:10:58It doesn't feel like the fish we touched.
0:10:58 > 0:11:01Hmm. Let's try and put some water on them.
0:11:02 > 0:11:04Ooh! Ha, ha!
0:11:08 > 0:11:11It's still not slimy, even when it's wet.
0:11:11 > 0:11:16- Why don't we see what happens if we get the fish soapy?- Yes, please!
0:11:18 > 0:11:20LAUGHTER
0:11:20 > 0:11:22Ooh, that should be enough soap.
0:11:22 > 0:11:26Ooh. Ha, ha, ha! What does it feel like now?
0:11:26 > 0:11:29They're all slippery and slimy, Nina.
0:11:29 > 0:11:33It's really slimy and slippery! What if we squeeze it?
0:11:33 > 0:11:36Nina, it feels very slippery indeed now.
0:11:36 > 0:11:40I don't know if squeezing it is such a good idea.
0:11:40 > 0:11:41- Whoa...! - SHE LAUGHS
0:11:50 > 0:11:51Oh, there they go!
0:11:51 > 0:11:54They're so slimy we can hardly hold on to them!
0:11:54 > 0:11:58OK, guys, OK! We can stop there. Wow, that was brilliant fun!
0:11:58 > 0:12:02We found out that when things are slimy and wet,
0:12:02 > 0:12:07they're hard to hold on to. And that is why fish are so slimy.
0:12:07 > 0:12:11Being slimy helps them swim faster and slip away from danger,
0:12:11 > 0:12:14which is pretty handy if you're being chased by a shark
0:12:14 > 0:12:17who's going to eat you!
0:12:21 > 0:12:24I've enjoyed finding out about fish today.
0:12:24 > 0:12:28We've answered your question, Molly. You wanted to know
0:12:28 > 0:12:32why are fish so slimy? We discovered it's because it helps them move
0:12:32 > 0:12:36faster through water. It's very important to fish
0:12:36 > 0:12:39because it helps them escape danger quickly.
0:12:39 > 0:12:44- Thanks, Nina. We've had a great time. - Thanks, guys. Bye.- Bye, Nina.
0:12:49 > 0:12:51# Help protect our planet
0:12:51 > 0:12:53# Go eco!
0:12:53 > 0:12:54# Go eco!
0:12:54 > 0:12:58# Walk to school or cycle
0:12:58 > 0:12:59# Go eco!
0:12:59 > 0:13:01# Go eco!
0:13:01 > 0:13:04# Turn off the tap, switch off the light
0:13:04 > 0:13:07# Recycle what you can
0:13:07 > 0:13:10# Help protect our planet
0:13:10 > 0:13:11# Go eco!
0:13:11 > 0:13:12# Go eco!
0:13:12 > 0:13:14# Go eco... #
0:13:14 > 0:13:19I really enjoyed myself today. My favourite bit was smelling
0:13:19 > 0:13:23all the lovely salty, seaweedy smells at the aquarium.
0:13:23 > 0:13:27Ah, it's been such a great day, man!
0:13:27 > 0:13:31I loved seeing all those beautiful, graceful fish.
0:13:31 > 0:13:35- All those beautiful colours. - It's been a marvellous day.
0:13:35 > 0:13:38That big fish felt very slippery and slimy.
0:13:38 > 0:13:41But he was quite friendly, really.
0:13:41 > 0:13:43Oh, I've had a brilliant day,
0:13:43 > 0:13:46listening to the splishing and splashing!
0:13:46 > 0:13:48I've had a fabby day!
0:13:48 > 0:13:53I really like when the fish kept diving away! Ha, ha!
0:13:53 > 0:13:58We've had a sensational time today. I hope you've enjoyed it too. Bye!
0:13:58 > 0:13:59Bye!
0:13:59 > 0:14:02Subtitles by Red Bee Media Ltd