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 > 0:00:21- # Fingers - Fingers!
0:00:21 > 0:00:23- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!
0:00:23 > 0:00:29# Every day we use our senses Wherever we may go
0:00:29 > 0:00:31- # Tongue - Tongue!
0:00:31 > 0:00:32- # Fingers - Fingers!
0:00:32 > 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 > 0:00:53# 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! #
0:01:12 > 0:01:16Hi there! I'm doing my final rehearsal for my new show.
0:01:16 > 0:01:18It's all about electricity.
0:01:18 > 0:01:22Usually, you can't see electricity, but you can with this plasma ball!
0:01:22 > 0:01:24Look at the lights!
0:01:24 > 0:01:29It's like lightning moving around inside, but with bright colours.
0:01:29 > 0:01:31The colours are different gases,
0:01:31 > 0:01:34and the gases turn a different colour
0:01:34 > 0:01:37when the electricity passes through them.
0:01:37 > 0:01:42If I touch the ball, I can change the way the electricity moves.
0:01:42 > 0:01:48And if I move my finger around, the light will follow it. That's great.
0:01:48 > 0:01:52I've got another trick. Here is an ordinary light,
0:01:52 > 0:01:55and it'll usually be lit by electricity,
0:01:55 > 0:01:59from wires from your house, but I don't need wires.
0:01:59 > 0:02:02All I need to do is hold this light,
0:02:02 > 0:02:04and touch the plasma ball.
0:02:06 > 0:02:10Hey! My very own lightsaber!
0:02:10 > 0:02:14SHE IMITATES LIGHTSABER
0:02:14 > 0:02:16ALARM BEEPS
0:02:16 > 0:02:18Oh! There's another light!
0:02:18 > 0:02:23I hear a beep, I see a flash, I wonder what they're going to ask.
0:02:28 > 0:02:33Hello, Nina. My name is Monica. Where do the shadows come from?
0:02:33 > 0:02:34I like that question.
0:02:34 > 0:02:36Shadows can be great fun,
0:02:36 > 0:02:40and you can use your hands to make great shadows, like the bird,
0:02:40 > 0:02:45or the dog. Woof! Woof! Woof!
0:02:45 > 0:02:49My dog needs some work. OK, I'll see you soon.
0:02:49 > 0:02:52- Bye!- Bye!
0:02:52 > 0:02:55I think we'll need some help to answer this one,
0:02:55 > 0:02:59and I know just who to ask. OK, Neurons, time to get to work.
0:03:14 > 0:03:17Neurons at the ready, Nina!
0:03:17 > 0:03:21Today's question is, "Where do shadows come from?"
0:03:21 > 0:03:24So, which neuron do you think can help us out today?
0:03:24 > 0:03:28- Me!- Me!- Me!- Oh, me!
0:03:28 > 0:03:30Will it be fabulous Felix?
0:03:30 > 0:03:34I can help so very much if you need the sense of touch.
0:03:34 > 0:03:38- Beautiful Belle? - I send messages, brain to ear.
0:03:38 > 0:03:41If there's a sound, I'll help you hear!
0:03:41 > 0:03:44- Lovely Luke?- For looking and seeing, day or night,
0:03:44 > 0:03:47I'll help you with your sense of sight.
0:03:47 > 0:03:49Will it be awesome Ollie?
0:03:49 > 0:03:54If it's pongy, but you can't tell, I will help your sense of smell.
0:03:54 > 0:03:56Or will it be Baby Bud?
0:03:56 > 0:04:01Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat!
0:04:06 > 0:04:07- It's Luke!- Yes!
0:04:07 > 0:04:14Go Luke! Go Luke! Go Luke! Go Luke! Go Luke! Go Luke! Go Luke!
0:04:14 > 0:04:19Cool, Nina. I'll be looking out to help you!
0:04:19 > 0:04:23We need to keep our eyes open to find shadows,
0:04:23 > 0:04:26and that's why we need Luke's help.
0:04:29 > 0:04:30OK, then.
0:04:30 > 0:04:32Let's go!
0:04:40 > 0:04:43Monica wants to know where shadows come from,
0:04:43 > 0:04:47so I'll take my shadow with me, so I can show her.
0:04:47 > 0:04:49So, where did I last see it?
0:04:49 > 0:04:54Hmmm...hmmm. I can't remember when I saw it last.
0:04:54 > 0:04:58Oh! That's right, it was in the park yesterday.
0:05:14 > 0:05:18Right, I'm back in the park, but I still haven't seen my shadow,
0:05:18 > 0:05:21so I think I need to retrace my steps.
0:05:25 > 0:05:28- Ready, Luke?- Oh, it's my big moment!
0:05:28 > 0:05:32Standing by, ready to send lots of messages!
0:05:49 > 0:05:52Can you see any sign of Nina's shadow, Luke?
0:05:52 > 0:05:56Hmmm... No, there's no sign of it anywhere.
0:05:56 > 0:06:01It was down on the ground by her feet yesterday, but it's not there now.
0:06:01 > 0:06:04I definitely had my shadow here yesterday,
0:06:04 > 0:06:07but I can't find it anywhere.
0:06:07 > 0:06:08Maybe I need some help.
0:06:10 > 0:06:13- Hi, Nina!- Hi, guys.
0:06:13 > 0:06:19Maybe you can help me. I'm looking for a shadow.
0:06:19 > 0:06:22- We'll help you!- Brilliant!
0:06:29 > 0:06:31- Can you see any, guys?- No!
0:06:41 > 0:06:46- Hi, Nina!- Hello! Have you spotted a shadow yet?- Not yet.- Oh, OK.
0:06:46 > 0:06:47Let's keep looking!
0:06:57 > 0:07:00- Hmmm, are there any there?- No!
0:07:00 > 0:07:03There are no shadows today.
0:07:03 > 0:07:06There aren't any, are there? I wonder why that is.
0:07:06 > 0:07:09Because there's no sun!
0:07:09 > 0:07:14Of course! Oh, it was sunny yesterday, and it's cloudy today,
0:07:14 > 0:07:17and that's why there are no shadows. Oh!
0:07:17 > 0:07:22Thank you for helping me, guys. I've got to go and see Monica now,
0:07:22 > 0:07:26- and hopefully meet up with my shadow again. Bye!- Bye!
0:07:26 > 0:07:28Bye, Nina!
0:07:48 > 0:07:51Meet Monica, her sister Clara, and their mum.
0:07:51 > 0:07:54They're a regular family from Barcelona,
0:07:54 > 0:07:57but today, for one day only, they are...
0:07:58 > 0:08:02..The Experimenters!
0:08:05 > 0:08:08- Hi, everyone!- Hello, Nina.
0:08:08 > 0:08:10- Hi, Monica, how are you?- Good.
0:08:10 > 0:08:15- Good. So, you want to know where shadows come from.- Yeah.- Brilliant.
0:08:15 > 0:08:20- The first thing we should all do is go out and find some shadows.- Yeah.
0:08:20 > 0:08:22We'll split into two teams.
0:08:22 > 0:08:24Come with me, Monica.
0:08:24 > 0:08:28Clara and Mum, go together, and we'll each take a camera,
0:08:28 > 0:08:32head out into the park, and see if we can find three or four shadows,
0:08:32 > 0:08:37and it can be shadows of anything you want, trees or buildings,
0:08:37 > 0:08:41and we'll take a photo of it, and we'll compare them.
0:08:41 > 0:08:44- How does that sound? - Very good.- Excellent!
0:08:44 > 0:08:50- Ready, Luke?- At your service, Nina! Here's looking at you!
0:08:57 > 0:09:01OK, guys. Let's play Guess The Shadows!
0:09:02 > 0:09:06Oh, that's easy. You can see feet and shoes. It's a person!
0:09:08 > 0:09:12That's right, Belle. All these shadows are from people!
0:09:21 > 0:09:25Ah, it looks great! Oh!
0:09:25 > 0:09:30Can you tell what this shadow is? It's moving really fast.
0:09:30 > 0:09:35- And it changes shape, too. I can't tell what it is.- I know!
0:09:35 > 0:09:39- It's someone on a swing! - That's right, Bud. It's Monica.
0:09:39 > 0:09:42The shadow changes shape when she moves,
0:09:42 > 0:09:45leaning backwards and forwards.
0:09:49 > 0:09:52This shadow looks like another person.
0:09:52 > 0:09:54It's Clara's own shadow.
0:09:56 > 0:10:01I know what these shadows are! It's Clara and her mum!
0:10:01 > 0:10:06That's right, Bud. And the other shadows are from the trees.
0:10:08 > 0:10:13I think this shadow is from Monica again. She's playing basketball.
0:10:13 > 0:10:15Fantastic shot!
0:10:17 > 0:10:19Hurray, she's scored!
0:10:19 > 0:10:21Oh! Oh!
0:10:21 > 0:10:25Yay! Oh, well done! That was brilliant!
0:10:29 > 0:10:31Which one's your favourite photo?
0:10:31 > 0:10:34- The swing. - Yeah, the swing was a good one.
0:10:34 > 0:10:38Why do you think there are such good shadows today?
0:10:38 > 0:10:41- Because it's a sunny day. - That's right.
0:10:41 > 0:10:44We need the sun to make shadows, and I'll show you.
0:10:44 > 0:10:48Look at the table. The sun is shining down on the table,
0:10:48 > 0:10:54and because there's nothing in its way, there are no shadows.
0:10:54 > 0:10:59But if I hold this orange like this, it blocks some of the light,
0:10:59 > 0:11:04stops it reaching the table, and there's a shadow.
0:11:07 > 0:11:10It's been a lovely day, but before I go,
0:11:10 > 0:11:13let's check we've answered your question.
0:11:13 > 0:11:15You wanted to know where shadows come from.
0:11:15 > 0:11:20Today, we found out that you can see shadows of all sorts of things
0:11:20 > 0:11:21on a bright, sunny day,
0:11:21 > 0:11:25and the sun creates shadows when an object,
0:11:25 > 0:11:27like a tree, or a swing, block its way.
0:11:27 > 0:11:32Oh, but I'd better be off. Got a long journey home, I'm afraid.
0:11:32 > 0:11:33- Bye, Monica!- Bye.
0:11:35 > 0:11:40We've answered Monica's question, but I've not solved my problem.
0:11:40 > 0:11:44I still haven't found my shadow. I can see the sun up there,
0:11:44 > 0:11:48but when I look down, there's no shadow.
0:11:48 > 0:11:49Any ideas, Luke?
0:11:49 > 0:11:54It's because you can see the sun that you can't see your shadow.
0:11:54 > 0:11:58If you're facing the sun, your shadow will be behind you.
0:11:58 > 0:12:04Oh, of course! I'm standing between the sun and my shadow!
0:12:04 > 0:12:08So, if I turn around, I should be able to see my shadow!
0:12:08 > 0:12:14Hello! I've been looking for you everywhere. I thought I'd lost you.
0:12:14 > 0:12:17Thank you, Luke! Thanks for your help!
0:12:17 > 0:12:20No problem, Nina. I'm always looking out for you.
0:12:20 > 0:12:25And now I've found my shadow, we can head off home together. Come on!
0:12:41 > 0:12:44# It's been a busy, busy day
0:12:44 > 0:12:47# Questions answered, experiments done
0:12:47 > 0:12:50# We've all used our senses in so many ways
0:12:50 > 0:12:53# Tell me, Neurons, what have you done today? #
0:12:53 > 0:12:56Well, I definitely worked the hardest today.
0:12:56 > 0:13:00It was fun, trying to spot where the shadows were,
0:13:00 > 0:13:02and where they came from.
0:13:04 > 0:13:07There were loads of sounds to keep me busy.
0:13:07 > 0:13:13There's always lots of noise when people are playing in a park.
0:13:13 > 0:13:15I was working hard too, you know.
0:13:15 > 0:13:20It felt cold in the first park, but in the sunshine, things warmed up.
0:13:20 > 0:13:25Well, we've had a bit of an easy day, haven't we, Bud?
0:13:25 > 0:13:28Yeah, but I've still had a fabby time!
0:13:35 > 0:13:37Well, that was great fun.
0:13:37 > 0:13:41I hope you've had a sensational time, too. Bye!
0:13:41 > 0:13:43- Bye!- Bye!- Bye!- Bye!- Bye!