Glow Stars Nina and the Neurons


Glow Stars

Scientist Nina and her young experimenters discover how substances change and react. Nina investigates what makes glow stars glow.


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# If you've got a question and you don't know where to go

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# Ask Nina for some help Cos she's got a science show

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# She makes sense of her senses While helping all her fans

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# By doing her experiments with potions and with bangs

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-# Touch your tongue

-Tongue!

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-# Fingers

-Fingers!

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-# Eyes.

-Eyes!

-Ears.

-Ears!

-Nose.

-Nose!

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# Nina and the Neurons find out what you need to know

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# Nina and the Neurons find out what you need to know

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# Luke, he helps us with our eyes and Felix with our touch

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# Ollie sniffs out smells And Belle, she hears so much

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# Bud is Ollie's brother He helps us with our taste

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# They're Nina's little Neurons And they're coming to your place!

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-# Touch your tongue

-Tongue!

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-# Fingers

-Fingers!

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-# Eyes.

-Eyes!

-Ears.

-Ears!

-Nose.

-Nose!

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# Nina and the Neurons find out what you need to know

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# Nina and the Neurons find out what you need to know

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# Oh, yeah! #

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Oh, hello.

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I'm just writing myself a little note. Look.

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What do you mean you can't see it? OK, I've lost my normal pen

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so I'm writing in invisible ink.

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It's to remind me to buy a new pen.

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-Ha-ha!

-ELECTRONIC BEEPING

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I hear a beep, I see a flash - I wonder what they're going to ask.

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CHILDREN: Hi, Nina!

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Hello there.

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We've got a question for you, Nina.

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How do the stars on our ceiling glow in the dark?

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Great question. How do the stars on our ceilings glow in the dark?

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Could you bring some of your stars to my lab and we'll investigate.

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See you soon, Nina.

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-Bye.

-Bye.

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I'm going to need some help to answer this and I know who to ask.

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OK, Neurons, time to get to work.

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ALL: Neurons at the ready, Nina.

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OK. Today's question is,

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how do the stars on our ceilings glow in the dark?

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Which Neuron will be most useful to find the answer?

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ALL: Me! Me! Me!

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Will it be fabulous Felix?

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I can help so very much if you need the sense of touch.

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Will it be beautiful Belle?

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I send messages to brain from ear. If there's a sound, I'll help you hear.

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Will it be lovely Luke?

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For looking and seeing, day or night,

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I'll help you with your sense of sight.

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Will it be awesome Ollie?

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If it's pongy or whiffy but you can't tell,

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-my messages help your sense of smell.

-Or will it be baby Bud?

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Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat!

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-It's Luke!

-Yes!

-CHEERING

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Neurons: # Go Luke, go Luke

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# Go Luke, go Luke

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# Go Luke, go Luke

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# Go Luke. #

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Cool, Nina. I'll be looking out to help you!

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Today's question is,

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how do the stars on our ceilings glow in the dark?

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Now, because we see glow stars glow, Luke will be helping us today.

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I'd better get the lab ready before the Experimenters arrive.

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Razi likes chess.

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Jack loves making puppets.

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Mia's learning Mandarin. They all want to know more about glow stars.

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So, today for one day only,

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Razi, Jack and Mia become the experimenters!

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ALL: Hi, Nina.

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Welcome to my lab. Come in!

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So, your question was,

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how do the stars on our ceilings glow in the dark?

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-So, why do you want to know that?

-Because I've got a glow star

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-and I want to know how it glows.

-Did you bring some stars?

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ALL: Yes!

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Oh, brilliant!

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For our first experiment, we're going to be using these stars

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and our senses.

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ALL: Whoop-whoo! A senses experiment! We're ready, Nina!

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First, we'll dim the lights to make it darker

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so we can see what the glow stars do.

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Look! They're shining brightly, aren't they?

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-ALL: Yeah.

-As you can see,

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I've got my own glow stars.

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I've got some there.

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They look like they're shining in the dark.

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Yeah. When something glows brightly, it gives off light, doesn't it?

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-Yeah.

-Yeah.

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Let me put the lights back up.

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OK. Let's look at some other things that give off light.

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Like my lamp! I'll just turn it on.

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-Oh, it's not working.

-You haven't plugged it in!

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Oh, let's have a look. Oh! You're right, I haven't!

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This light needs electricity to work. I'll do this -

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plugs and sockets can be dangerous.

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Hooray!

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Now we've plugged the lamp in, the light is glowing.

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Hee-hee! Oh, and here's a torch.

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It doesn't have a plug but it still lights up. Look.

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Hey!

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That's because of these.

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-Do you know what these are?

-Batteries.

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That's right, batteries. These aren't for playing with either.

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To give a light, we had to plug in the lamp

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and use batteries for the torch.

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But the stars weren't plugged in

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and I don't think they had batteries.

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So how did they glow? We need to do another experiment.

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Let's go this way!

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Let's keep our eyes safe and put on our safety goggles.

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And as I'll be using chemicals, I'll wear my safety gloves, too.

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Mixing chemicals can only be done in Nina's lab.

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You should never mix things yourself.

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OK. In these beakers are some very special chemicals.

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They don't look very special right now,

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but I'm going to mix them up.

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I'll dim the lights.

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Watch this.

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Wow.

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ALL: Ooh!

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Now I'll do the next one.

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ALL: Ooh!

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-And now the last one.

-I hope it'll be red.

-Let's see.

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-OH! What colour is it?

-It's green!

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Yeah! Oh, fantastic! Sometimes when we mix different chemicals,

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they give off a glowing light and this is called luminescence.

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Lumin... Lumin... That's a difficult word to say, Nina!

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But luminescence is really useful -

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it means we can make light without electricity or batteries.

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Hm. But we didn't mix chemicals to make the glow stars glow, did we?

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No, Nina. They glowed all by themselves.

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It certainly looked like that.

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I know something else that glows in the dark

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that might help us solve this mystery. Shall we see it?

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-ALL: Yeah.

-Brilliant. Goggles off.

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I love this bit. I wonder where Nina is taking us.

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Nina said we would see something that glows in the dark.

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But I don't know how. It's not even dark outside!

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Well, we're here! I can't see anything glowing at all.

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Wow! Look at the size of that dinosaur!

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I hope it's not hungry!

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Don't worry. I don't think it finds taste buds very tasty.

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-Hi, Nina. I've been expecting you.

-Hi, Jo. Thanks very much

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for inviting us to the museum.

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The things we've come to see are inside this room!

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Prepare to be amazed!

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Hoo-hoo-hoo!

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So, guys, this is what we've come to see. Some very special rocks.

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Well, they don't look very special to me. They just look like...

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-Rocks.

-Exactly.

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They may look like ordinary rocks now, but when we dim the lights,

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something very special happens.

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Oh.

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Er, am I missing something here? I can't see anything!

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Ha-ha! I think we're all completely in the dark, Bud! Especially Nina!

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Ohh! I forgot to switch on my special torch.

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Here we go.

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(Wow!)

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Wow. Look at that!

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-Can you see what's happening?

-The rocks are going different colours.

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The rocks glow because of the special light shining on them

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that makes them glow.

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It's called ultra-violet light.

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It's coming from this special torch.

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Ooh. Jo, can we have the normal lights back on now, please?

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-The rocks have stopped glowing, Nina.

-That's because I turned off

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the special torch.

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-But our glow stars keep glowing for AGES, Nina.

-They do.

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We need to go back to the lab for one final experiment.

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ALL: Yeah!

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Your question was, how do the stars on our ceilings glow in the dark?

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The rocks glowed when ultra-violet light shone on them.

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Could ultra-violet light be making our stars glow?

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We need to do an experiment to find out.

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Each of these envelopes contains a glow star.

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They've had no light shone on them,

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they've been kept in the dark. Do you think they'll glow?

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ALL: Yes!

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-Take out your glow stars. Let's see if they glow. Is it glowing?

-No.

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-There's no light coming from it.

-You're right.

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you guys have proved that glow stars do not glow

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if they're kept in the dark. Well done.

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Pop the stars back in the envelopes.

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Lights up.

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Next, when we take the stars out, we'll place them under the lights.

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Jack, you have the ultra-violet torch.

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Mia, you've got a normal torch and Razi, you have a normal lamp.

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OK, switch your lights on and I'll dim the lights.

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OK. Take the stars out and place them in the light in front of you.

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We'll leave them for about five minutes.

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Right, let's see if the glow stars are glowing!

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Jack, can you turn your ultra-violet torch off, please?

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Look at your star.

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-It's still glowing.

-That's because

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your torch gives out ONLY ultra-violet light.

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Glow stars need that to make them glow,

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just like the rocks in the museum. But with glow stars,

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they keep on glowing, even when the ultra-violet light has stopped.

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So turn your lights off, please, and let's look at your stars.

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-Are they glowing?

-Yes.

-Yeah.

-They are,

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but not as much as Jack's star.

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Mia, your torch and Razi, your lamp, have normal light bulbs.

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Even normal bulbs give a little ultra-violet light

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and that's enough to make the stars glow.

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Your question was, how do the stars on our ceilings glow in the dark?

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I think we've answered it. Glow stars glow

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because of ultra-violet light. There's a bit in ordinary bulbs

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and lots of it in sunlight.

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so when the sunlight shines in your window

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or the lights from your bedroom shine on your glow stars,

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they start to glow. When you turn the light off,

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the glow stars keep on glowing.

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But it doesn't last forever.

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The glow fades when the stars are kept in the dark.

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-I hope that answered your question.

-ALL: Thanks, Nina. Bye!

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Bye.

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If you want to know more about the science all around us,

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go to the Nina section on the CBeebies website. Have fun!

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Lab coat on, Nina?

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Lab coat on, Ollie.

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Safety gloves on, Nina?

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Safety gloves on, Felix.

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Don't forget your goggles, Nina.

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Goggles are on, Luke. I think we're ready!

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# We do experiments in the lab

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-# In the lab!

-Shooby-dooby, in the lab

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# Bubbling experiments in the lab

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# In the lab!

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# Go, Nina, in the lab

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# Fizzing and popping Steam and smoke

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# We need protection Don't we, folks?

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# We always put our safety first

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# Shooby-dooby, dooby-dooby

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# We do experiments in the lab

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# In the lab!

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# Go, Nina! #

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It's been a marvellous day.

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The glow stars glowed without plugs or batteries.

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I really enjoyed myself today,

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especially when Nina mixed the chemicals.

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Ahh, it's been such a great day, man!

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Seeing those rocks glow under the ultra-violet light.

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I've had a fabby day!

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Finding out how the glow stars glow was BRILLIANT!

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Our day's been bursting with experiments.

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I hope you enjoyed it. See you soon. Bye!

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ALL: Bye!

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E-mail [email protected]

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Scientist Nina and her young experimenters discover the amazing ways that things can change and react in the everyday world.

Nina investigates how glow stars glow, with the help of Luke, her sight neuron. Experimenters Jack, Mia and Razi visit Nina in her science lab and use their senses to work out that when something glows, it gives off light. But lamps and torches need electricity or batteries to make them glow. So what makes glow stars glow? Nina demonstrates how mixing certain chemicals together can make them glow.

Then they all visit a natural history museum and see some rocks that glow brightly under a special UV light. Back in the lab, the Experimenters prove that glow stars need UV light to make them start to glow. This can be found in ordinary light bulbs and in sunlight. But the glow fades when the glow stars have been in the dark for too long.


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