Wet Paint Nina and the Neurons

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

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

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

# By doing her experiments with potions and with bangs

-# Touch your tongue

-Tongue!

-# Fingers

-Fingers!

-# Eyes.

-Eyes!

-Ears.

-Ears!

-Nose.

-Nose!

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

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

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

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

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

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

-# Touch your tongue

-Tongue!

-# Fingers

-Fingers!

-# Eyes.

-Eyes!

-Ears.

-Ears!

-Nose.

-Nose!

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

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

# Oh, yeah! #

Oh, hello! I'm just filling up my watering can.

Silly me! I forgot to water my little plant.

The soil's all dried up. It needs a drink of water.

That's better!

BEEPING

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

Hi, Nina!

Hi, guys!

We've got a question for you.

Why do we have to wait for our paintings to dry?

That's a great question!

Why do we have to wait for our paintings to dry?

So why don't you come down to my lab

and we'll do some experiments to investigate?

See you soon, Nina! Bye!

Bye!

I'm going to need some help to answer this

and I know just who to ask. OK, neurons, time to get to work.

Neurons at the ready, Nina.

Today's question is, why do we have to wait for our paintings to dry?

Which Neuron will be most useful in helping find the answer?

ALL: Me! Me! Me! Oh, me!

Will it be fabulous Felix?

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

Will it be beautiful Belle?

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

Will it be lovely Luke?

For looking and seeing, day or night,

I'll help you with your sense of sight.

Will it be awesome Ollie?

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

-my messages help your sense of smell.

-Or will it be baby Bud?

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

It's Felix!

ALL: Go, Felix! Go, Felix! Go, Felix!

Go, Felix! Go, Felix! Go, Felix!

Go, Felix!

Marvellous! A little touch can mean so much, Nina.

Today's question is, why do we have to wait for our paintings to dry?

We feel if something is dry or not,

so Felix, our touch neuron, will be helping me today.

I need to get the lab ready before the experimenters arrive!

Tia likes skipping. Katie likes making jewellery. Lucy loves art.

They want to know why paintings have to dry.

Today, for one day only, Tia, Katie and Lucy become the experimenters!

Hi, Nina!

Welcome to my science lab! It's lovely to see you all.

Now, you asked, why do we have to wait for our paintings to dry?

Why do you want to know?

-We love painting.

-But we don't like waiting for them to dry.

I know that feeling. You've painted a lovely picture

and then you can't touch it because it's wet.

We need to investigate.

For our first experiment, we're going to use our senses.

Woop-woo! A senses experiment.

-We're ready!

-You're going to make some pictures.

Katie, you'll be using felt-tip pens,

and Lucy, you've got runny poster paints,

and Tia, you'll be using hard paint blocks.

Time to get experimenting with art!

Nina, my paint's not working. Please may I have some water?

Oh, of course, Tia, I'm so sorry!

Of course you'll need water. I totally forgot! There you go.

Lucy, you don't need water, because the poster paint you're using

is like the hard paints but already has water mixed in.

What lovely, bright colours they're using!

These pictures will look beautiful!

Oh, your pictures are looking great!

Katie, how are you finding the felt-tip pens?

Fine, Nina.

Good. Try touching the tip of the felt-tip pen.

How does it feel?

Ooh! That's tickly, Nina.

Ooh, stop! Oh!

It feels a little bit wet.

The felt-tip pen feels a bit wet

because it contains a tiny bit of water.

What about your picture? Does it feel wet?

-No.

-And what about the two painted pictures?

It's wet.

Ooh, ho-ho! Yeah, it is still wet, isn't it?

Oh, yes, definitely still wet.

So this experiment has shown us

that felt-tip pens dry straightaway,

but paints take a while to dry because they're mixed with water.

We need to do another experiment, and I need to wash my hands!

It's my turn to make a picture now

and I'm using a different type of paint.

It's called a dry powder paint. Here we go.

That's strange-looking paint. It's all powdery.

Ooh! What can you see happening?

It's slipping off your brush.

Yeah! Well, I'll try painting a picture now.

Oh... Ha-ha!

It's just making a bit of a mess, isn't it?

-It's not working very well, is it, Nina?

-No!

Oh!

Oh! Nina's picture's fallen off the paper!

We want out painting to last a bit longer than that, don't we?

Actually, I knew that was going to happen.

All paint colours start out as dry powders like this,

and the dry paint colour needs to be mixed with wet things like water

to help it stick to the paper.

Then when the water dries, the colour is left behind.

We found out earlier that felt-tip pens contain a tiny bit of water

and they also contain a special chemical

that helps the colour to dry really quickly.

I have some of the special chemical here. Watch this.

I'm going to dip some cotton wool into some water...

..and spread the water here...

..and now I'll do the same

with the special chemical.

I wonder what's going to happen.

So what's happened?

-The chemical's gone...

-..but the water's still there.

-That's right.

The chemical is in felt-tip pens,

so pictures drawn with felt-tip pens dry quickly.

If pens dry faster than paint,

-which would you rather use to colour a picture in with?

-ALL: Pens!

Our next experiment is a big challenge,

so we'll see if you change your minds. Let's go, experimenters.

Off we go for another adventure.

Nina said something about a big challenge.

We're in the Science Centre. There's the skeleton on the bicycle.

And there's the giant piano that you can play with your feet.

I had to find a big place for your big challenge

and the Science Centre is perfect. Look over here.

-GASPING

-Look, it's me!

That's a picture of me.

Oh, and look, there's you, Belle, and Ollie and Luke and Felix.

For this experiment, we'll colour in giant pictures of my lovely neurons.

So let's go.

So we found out that felt-tip pens dry quicker than paint,

so just remind me, which would you rather use to colour in with?

ALL: Felt-tip pens!

And I'm going to use this paint and a nice big brush.

Let's get experimenting.

Nina's working really fast with that paint.

She's way ahead of the experimenters.

How's it coming with those felt-tip pens, guys?

-The pens are too small.

-We'll never finish it.

Why don't you try these bigger pens? They might help.

Nina was really fast with that big brush.

That's me finished. How are my experimenters getting on?

It's taking ages, Nina.

I've been a bit naughty. I knew that colouring such big pictures

with felt-tip pens would take a long time

because the tip on a felt-tip pen is really small. Look.

Felt-tips are great for small pictures and they dry quickly,

but if you want to colour in big areas quickly and easily,

it's much better to use paint and a brush,

but I wonder if there's a way of making paint dry faster.

Let's go back to the lab for one final experiment.

We want to know if we can make paint dry any faster.

-So, let's get experimenting!

-ALL: Yeah!

We're going to work in pairs for this experiment

so, Katie and Tia, you guys can go together

and, Lucy, you and I will be a team.

OK, we're going to do some more colouring in.

Katie and Tia, can you share this beaker of water in front of you?

You can use that to dip your brushes in.

Lucy, you and I are going to use this.

It's the special chemical in felt-tip pens

that makes them dry really quickly. It's safe for this experiment.

Please remember that some liquids are not safe to touch or drink.

-OK, guys, are you ready?

-Yes!

It's not working very well.

No, my paintbrush isn't getting the paint onto the paper at all.

Hmm! And we're using the same paints.

What do you think might be wrong?

-The chemical.

-Yeah, it's the quick-drying liquid

in our beaker that's drying too quickly to use with paint.

Water is much better

because it keeps the paint wet long enough to move around the paper.

Your question was, why do we have to wait for our paintings to dry?

I think we've answered it.

We discovered the colours used in paint would be too dry and powdery

to paint without water.

Felt-tip pens are good for colouring in small pictures,

because they have a special chemical in them

that makes them dry really quickly.

If you want to colour in a big area,

the water in paint lets you spread the colour quickly and easily,

so, although we have to wait for the water to dry,

it's worth it to make such lovely big colourful pictures.

-I hope that's answered your question.

-ALL: Thanks, Nina. Bye!

Bye!

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

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

Lab coat on, Nina?

Lab coat on, Ollie.

Safety gloves on, Nina?

Safety gloves on, Felix.

And don't forget your goggles, Nina.

Goggles are on, Luke.

I think we're ready.

# We do experiments in the lab

-# In the lab!

-Shooby-dooby! In the lab!

# Bubbling experiments in the lab

-# In the lab!

-Go, Nina! In the lab!

# Fizzing and popping! Steam and smoke!

# We need protection Don't we, folks?

# We always put our safety first

# Shooby-dooby-dooby-dooby!

# We do experiments in the lab

-# In the lab!

-Go, Nina! #

It's been a marvellous day,

especially feeling the tip of the pen - wet and tickly.

I've had a fabby day.

It was funny when Nina's picture fell off the paper. Ha-ha-ha!

I really enjoyed myself today.

Nina was so fast colouring in with that big brush.

Our day's been bursting with sensational experiments.

-I hope you've enjoyed it. See you soon. Bye.

-Bye!