0:00:05 > 0:00:08# If you've got a question and you don't know where to go
0:00:08 > 0:00:12# Ask Nina for some help Cos she's got a science show
0:00:12 > 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 > 0:00:22- # Eyes- Eyes - Ears- Ears
0:00:22 > 0:00:23- # 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 > 0:00:36# Ollie sniffs out smells and scents and Belle she hears so much
0:00:36 > 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 > 0:00:46- # Eyes- Eyes - Ears- Ears
0:00:46 > 0:00:47- # Nose- Nose
0:00:47 > 0:00:50- # Nina and the Neurons find out what you need to know- Yeah!
0:00:50 > 0:00:53# Nina and the Neurons find out what you need to know
0:00:53 > 0:00:55# Oh, yeah! #
0:00:56 > 0:01:00Hello. I'm just finishing off a picture of the night sky.
0:01:00 > 0:01:03Look at all the lovely sparkly stars.
0:01:03 > 0:01:06I've just got one more thing to do.
0:01:15 > 0:01:16- SHE LAUGHS - That's right.
0:01:16 > 0:01:18It's a shooting star
0:01:18 > 0:01:20whizzing across the night sky.
0:01:20 > 0:01:21Wee!
0:01:21 > 0:01:23BEEPING
0:01:23 > 0:01:28I hear a beep, I see a flash. I wonder what they're going to ask.
0:01:33 > 0:01:34ALL: Hi, Nina.
0:01:34 > 0:01:36Hi.
0:01:36 > 0:01:38We've got a question for you.
0:01:38 > 0:01:40What is a shooting star?
0:01:40 > 0:01:43That's a great question. What is a shooting star?
0:01:43 > 0:01:46I've just put a shooting star in my night sky picture.
0:01:46 > 0:01:50Why don't you come down to my workshop and we'll investigate?
0:01:50 > 0:01:53ALL: See you soon, Nina. Bye!
0:01:53 > 0:01:57Bye. I'm going to need some help to answer this one,
0:01:57 > 0:01:58and I know just who to ask.
0:01:58 > 0:02:01OK, Neurons, time to get to work.
0:02:15 > 0:02:18ALL: Neurons at the ready, Nina.
0:02:18 > 0:02:21OK, today's question is - what is a shooting star?
0:02:21 > 0:02:24Which Neuron do you think will be most useful
0:02:24 > 0:02:26in helping us find the answer?
0:02:26 > 0:02:29ALL: Me! Me! Me! Oh, me!
0:02:29 > 0:02:31Will it be fabulous Felix?
0:02:31 > 0:02:33I can help so very much
0:02:33 > 0:02:35if you need the sense of touch.
0:02:35 > 0:02:37Will it be beautiful Belle?
0:02:37 > 0:02:39I send messages to brain from ear.
0:02:39 > 0:02:41If there's a sound, I'll help you hear.
0:02:41 > 0:02:43Will it be lovely Luke?
0:02:43 > 0:02:46For looking and seeing, day or night,
0:02:46 > 0:02:48I'll help you with your sense of sight.
0:02:48 > 0:02:50Will it be awesome Ollie?
0:02:50 > 0:02:53If it's pongy or whiffy but you can't tell,
0:02:53 > 0:02:55my messages help your sense of smell.
0:02:55 > 0:02:57Or will it be baby Bud?
0:02:57 > 0:02:59Sour, salty, bitter or sweet,
0:02:59 > 0:03:02I'm your taste buddy whenever your eat.
0:03:06 > 0:03:07It's Luke.
0:03:07 > 0:03:09CHEERING
0:03:16 > 0:03:19Cool, Nina. I'll be looking out to help you.
0:03:20 > 0:03:23Today's question is - what is a shooting star?
0:03:23 > 0:03:26Because shooting stars are something we see,
0:03:26 > 0:03:29Luke will be helping us today. But stand by, Neurons.
0:03:29 > 0:03:32I have a feeling I may need help from all of you.
0:03:32 > 0:03:37I need to get the workshop ready before the explorers arrive.
0:03:37 > 0:03:39Amy loves painting.
0:03:39 > 0:03:41Leon loves going to school.
0:03:41 > 0:03:43Jack loves going to the Beavers.
0:03:43 > 0:03:45They want to know - what is a shooting star?
0:03:45 > 0:03:47Shooting stars are sparkly.
0:03:47 > 0:03:50They shoot across the sky.
0:03:50 > 0:03:52What are shooting stars?
0:03:58 > 0:04:00So, today, for one day only,
0:04:00 > 0:04:04Amy, Leon and Jack become the Explorers.
0:04:08 > 0:04:11- Hi, guys. - AMY AND JACK: Hi, Nina.
0:04:11 > 0:04:12Welcome to my workshop.
0:04:12 > 0:04:16Thank you for your great question - what is a shooting star?
0:04:16 > 0:04:19To find out the answer, let's start by using our senses.
0:04:19 > 0:04:23ALL: Whoop, woo! A senses experiment. We're ready, Nina.
0:04:23 > 0:04:27When we look up at the night sky, we can see lots of stars.
0:04:27 > 0:04:29They're the sparkly, twinkly things.
0:04:29 > 0:04:34Most of them stay still, but sometimes we can see a light moving.
0:04:34 > 0:04:37These moving lights are called shooting stars.
0:04:37 > 0:04:39Let's have a look at some over here.
0:04:39 > 0:04:41LUKE: Wow! It's amazing.
0:04:41 > 0:04:43It looks like a firework.
0:04:43 > 0:04:45They do look a bit like fireworks
0:04:45 > 0:04:47but they're something different.
0:04:47 > 0:04:49What do you notice, Explorers?
0:04:49 > 0:04:51They move really fast.
0:04:51 > 0:04:53Yes, and the funny thing about shooting stars is
0:04:53 > 0:04:56they're not really stars at all.
0:04:56 > 0:04:57What are they, Nina?
0:04:57 > 0:05:00They're actually little pieces of rock like this.
0:05:00 > 0:05:02Way up in space far away from us,
0:05:02 > 0:05:05there are lots of rocks moving around.
0:05:05 > 0:05:08Sometimes these rocks move nearer to Earth.
0:05:08 > 0:05:11If they get nearer to Earth, they heat up and start to glow,
0:05:11 > 0:05:15which makes them brighter and we can see them in the sky.
0:05:15 > 0:05:18BUD: Wow! Glowing rocks from space!
0:05:18 > 0:05:20Are they still hot now, Nina?
0:05:20 > 0:05:24No, Felix. When they land here on Earth, they cool down.
0:05:24 > 0:05:26Here, have a feel.
0:05:26 > 0:05:30- Hold on to it. - That's cold and heavy.- Yeah.
0:05:30 > 0:05:32It's cooled down now.
0:05:32 > 0:05:37Cooled like a cake after it comes out of the oven. I love cake!
0:05:37 > 0:05:39Yes, Bud.
0:05:39 > 0:05:41But this looks more like a burnt cake.
0:05:41 > 0:05:46If they're not stars, Nina, why do we call them shooting stars?
0:05:46 > 0:05:49Good question. It's because when they glow
0:05:49 > 0:05:52they look like stars shooting across the sky.
0:05:52 > 0:05:54But they're actually called meteors.
0:05:54 > 0:05:58When we can see them moving across the sky, they're called meteors.
0:05:58 > 0:06:02But when they land on Earth, they're called meteorites.
0:06:02 > 0:06:04But meteorites hardly ever land on Earth,
0:06:04 > 0:06:06so we shouldn't worry about them.
0:06:06 > 0:06:09We have some more meteorites over here.
0:06:09 > 0:06:12But I've mixed them up with ordinary Earth rocks,
0:06:12 > 0:06:15so can you guess which ones are meteorites from space
0:06:15 > 0:06:18and which ones are the rocks from Earth?
0:06:20 > 0:06:25Sometimes meteorites look and feel different from rocks we're used to.
0:06:25 > 0:06:27- So what can you see?- A bubbly rock.
0:06:27 > 0:06:29How does it feel?
0:06:29 > 0:06:31- Bumpy. - FELIX: It feels cold, Nina.
0:06:31 > 0:06:33Is this a meteorite, Nina.
0:06:33 > 0:06:38Yes, it is. Well done. You've found a meteorite. And it feels heavy.
0:06:38 > 0:06:41And it has a bubbled-shaped surface.
0:06:43 > 0:06:46These are all meteorites too.
0:06:46 > 0:06:48And that one as well. Well done, Amy.
0:06:48 > 0:06:52It can be hard to know which are meteorites by looking at them
0:06:52 > 0:06:55because they can look like ordinary rocks.
0:06:55 > 0:06:58I wonder if they're easier to spot in the sky.
0:06:58 > 0:07:00Let's go somewhere dark to find out.
0:07:03 > 0:07:05BELLE: Where do you think we're going today?
0:07:05 > 0:07:09- BUD:- Nina said it was somewhere dark. Oooh, exciting!
0:07:09 > 0:07:11- LUKE:- I hope we can see something.
0:07:11 > 0:07:13FELIX: I'm not sure I like the dark.
0:07:13 > 0:07:16- OLLIE:- Don't worry, the dark isn't scary.
0:07:16 > 0:07:18Looks like we've arrived, Neurons.
0:07:18 > 0:07:22We're in a dark sky park out in the countryside.
0:07:22 > 0:07:26- What do you notice? - It's dark and quiet.
0:07:26 > 0:07:28Yes, it's really dark and very quiet.
0:07:28 > 0:07:32We're here because it's a great place for meteor-spotting.
0:07:32 > 0:07:36There are about six times every year when we can see meteors,
0:07:36 > 0:07:40and luckily, today is one of those special times.
0:07:40 > 0:07:43So, who's ready to see some shooting stars?
0:07:43 > 0:07:46- KIDS: Me! - Well, let's go. Come on!
0:07:46 > 0:07:49Remember, you always need to take a grown-up with you
0:07:49 > 0:07:51if you're going out at night.
0:07:51 > 0:07:56Let's have a look up and see if we can see any shooting stars.
0:07:57 > 0:07:58Oh, wow.
0:08:01 > 0:08:03Oh.
0:08:16 > 0:08:19What a beautiful night. It's a shame we haven't seen any.
0:08:19 > 0:08:22But let's go inside to find out some more.
0:08:22 > 0:08:23This is a planetarium.
0:08:23 > 0:08:27It's made to feel like we're outside under the night sky
0:08:27 > 0:08:29but we're actually inside.
0:08:29 > 0:08:31LUKE: Whoa, Nina. This is really cool.
0:08:31 > 0:08:33It is, isn't it, Luke!
0:08:33 > 0:08:36Why don't we have a sit down and we'll look up to see
0:08:36 > 0:08:38if we can spot any shooting stars?
0:08:56 > 0:08:57Oh, did you see?
0:08:57 > 0:08:59Nina, why do they have a tail?
0:08:59 > 0:09:02That's a great question. Let's go and find out.
0:09:05 > 0:09:07We're in an observatory.
0:09:07 > 0:09:10It's a place for people to look at the night sky.
0:09:10 > 0:09:12We're going to do a little experiment.
0:09:12 > 0:09:15We have a tray of water here.
0:09:15 > 0:09:17Underneath is a pretend night sky.
0:09:17 > 0:09:22So let's see what happens when I add this fizzy tablet.
0:09:22 > 0:09:26Tablets can be dangerous. You shouldn't play with them yourself.
0:09:30 > 0:09:32It looks like it's got a tail.
0:09:32 > 0:09:34Yes, you're right.
0:09:34 > 0:09:38This fizzy tablet is a bit like a meteor moving through the sky.
0:09:38 > 0:09:43As it moves, it fizzes and makes a tail of bubbles.
0:09:43 > 0:09:46Why don't you guys try?
0:09:46 > 0:09:47Yay.
0:09:48 > 0:09:49NINA LAUGHS
0:09:52 > 0:09:55There are rocks moving around way out in space.
0:09:55 > 0:09:58If they move near to the Earth they heat up,
0:09:58 > 0:10:01which makes them glow. As they move through the sky,
0:10:01 > 0:10:04tiny little bits of the glowing rock break off.
0:10:04 > 0:10:06That leaves the glowing tail,
0:10:06 > 0:10:09just like the tail of bubbles in the water.
0:10:09 > 0:10:11But what happens when they land?
0:10:11 > 0:10:17Let's go back to my workshop to do one last experiment to find out.
0:10:17 > 0:10:20So you asked, "What is a shooting star?"
0:10:20 > 0:10:23So far we've discovered that shooting stars
0:10:23 > 0:10:24aren't actually stars at all.
0:10:24 > 0:10:28They're meteors which are little bits of glowing rock
0:10:28 > 0:10:30that we can see moving across the sky.
0:10:30 > 0:10:35They very rarely land on Earth, but if they do we call them meteorites.
0:10:35 > 0:10:38Let's find out what happens when a meteorite lands.
0:10:38 > 0:10:42Here we have a close-up picture of the moon at night.
0:10:42 > 0:10:44What do you notice, Explorers.
0:10:44 > 0:10:47- There's circles on it.- That's right.
0:10:47 > 0:10:50The circles are made when meteorites land on the moon.
0:10:50 > 0:10:52They're called craters.
0:10:52 > 0:10:55There are hundreds of craters in the moon
0:10:55 > 0:10:57made when meteorites land on it.
0:10:57 > 0:11:01Why don't we see if we can make our very own craters?
0:11:01 > 0:11:05Okey-doke. Here we have a tray of flour.
0:11:05 > 0:11:08This is a bit like the surface of the moon.
0:11:08 > 0:11:11Underneath, there is some coloured powder
0:11:11 > 0:11:13so we can see clearly what's happening.
0:11:13 > 0:11:16I have some balls here of different sizes.
0:11:16 > 0:11:19We're going to pretend that these are meteorites
0:11:19 > 0:11:23about to land on the moon. Here you go. Pass that along for me.
0:11:23 > 0:11:26We're going to drop the balls into the flour.
0:11:26 > 0:11:29Amy, you hold your hand out for me. Are you ready? Drop.
0:11:29 > 0:11:31NINA GASPS
0:11:31 > 0:11:32And drop.
0:11:32 > 0:11:34NINA LAUGHS
0:11:34 > 0:11:36And drop.
0:11:36 > 0:11:37NINA LAUGHS
0:11:37 > 0:11:40I'm going to lift them up carefully.
0:11:40 > 0:11:44- LUKE: Wow! Would you look at that?! - What can you see?- Craters.
0:11:44 > 0:11:46Yes, you've made craters.
0:11:46 > 0:11:50The big ball made a crater and the little ball made a...?
0:11:50 > 0:11:53- Little crater. - That's right, a little crater.
0:11:53 > 0:11:57So now we know that rocks from space are called meteorites
0:11:57 > 0:11:59and when they land they make craters.
0:11:59 > 0:12:03Remember, big rocks from space hardly ever land on Earth.
0:12:08 > 0:12:11So your question was - what is a shooting star?
0:12:11 > 0:12:12I think we've answered it.
0:12:12 > 0:12:17We found out shooting stars aren't really stars at all.
0:12:17 > 0:12:20They heat up and glow, leaving a tail of light.
0:12:20 > 0:12:22They're called meteors.
0:12:22 > 0:12:26You need to go somewhere really dark to see meteors.
0:12:26 > 0:12:29When they land on Earth, they're called meteorites.
0:12:29 > 0:12:32But they don't land here very often.
0:12:32 > 0:12:37Feeling a meteorite was marvellous, Nina. They felt bumpy and heavy.
0:12:37 > 0:12:39I hope we answered your question.
0:12:39 > 0:12:41ALL: Thanks, Nina. Bye.
0:12:41 > 0:12:43You're welcome. Bye.
0:12:47 > 0:12:50If you want to know more about the science around us,
0:12:50 > 0:12:54go to the Nina section on the CBeebies website. Have fun.
0:12:54 > 0:13:00# Every day the sun comes up it brightens up the sky
0:13:00 > 0:13:02# A brand-new day to understand
0:13:02 > 0:13:06- # A chance to ask ourselves why - Why?
0:13:06 > 0:13:12- # There's a world of possibilities outside our front door- Front door
0:13:12 > 0:13:16# So every day take a look around and explore
0:13:16 > 0:13:19- # Explore- Explore - Explore- Explore
0:13:19 > 0:13:25- # Exploring in the garden- Grass - Exploring in the park- Rivers
0:13:25 > 0:13:31- # Exploring in the daytime- Mountains - And even when it's dark- Planets
0:13:31 > 0:13:36# Look at the Earth look at the sky Look at the world before us
0:13:36 > 0:13:39- # Explore- Explore - Explore- Explore
0:13:39 > 0:13:42# We're always on the lookout
0:13:42 > 0:13:45- # We're Earth explorers - O-oh, o-oh
0:13:45 > 0:13:48- # We're Earth explorers - O-oh, o-oh
0:13:48 > 0:13:50# We're Earth explorers. #
0:13:51 > 0:13:55Exploring is about looking at the world around us,
0:13:55 > 0:13:57asking why and finding out the answer.
0:13:57 > 0:14:01Whether it's deep underground, at the end of your playground
0:14:01 > 0:14:05or way above the clouds, keep exploring our exciting world.
0:14:05 > 0:14:07See you again soon. Bye.
0:14:07 > 0:14:09ALL: Bye.
0:14:09 > 0:14:11Subtitles by Red Bee Media Ltd