Keeping Cosy 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!

# Every day we use our senses Wherever we may go

-# 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! #

-Hi, everyone!

-Hi, Nina!

In these bottles here,

I have some cold water and some hot water.

I've added colouring to tell the difference. Red is hot

-so that means blue must be...

-Cold!

So first of all, I'm going to pick up a cold water bottle,

put a piece of plastic over the top

and turn it over. Then I'm going to sit it on the hot water bottle.

What do you think will happen when we take the plastic away?

It'll mix? Well, let's see.

Look at that, guys! It IS mixing up, you're absolutely right.

Can you hold that? I'm going to pick up the hot water bottle,

pop some plastic over the top again and turn it over!

Now I'm going to sit it on the cold water. There we go.

What will happen this time? Will the colours mix together?

-Yes!

-No!

I just need to take the plastic out. Please don't spill everywhere!

Look, the colours are not mixing together. They're staying

exactly where they are. This is because hot water is lighter

than cold water so hot water rises up.

In these bottles, the hot's already at the top so it stays where it is.

But when the bottles are the other way around like here,

the hot water was at the bottom so it rose up,

and the cold water was at the top and it sunk down.

They swapped places and the colours mixed!

BEEPING

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

Hi, Nina! My name's Matthew, I've got a question for you.

-How do I make my tent warmer?

-That's a great question.

How can I make my tent warmer? Hmm.

I think we'll have lots of fun finding this out.

-I'll be round soon to answer your question.

-Bye, Nina!

-Bye.

I'll need some help to answer this one and I know just who to ask.

OK, Neurons, time to get to work!

Neurons at the ready, Nina.

OK, today's question is how can I make my tent warmer?

Which Neuron do you think will help us find the answer?

-Me!

-Me, me!

-Me!

-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 to ear.

-If there's a sound, I'll help you hear.

-'Will it be Luke?'

For looking and seeing day or night, I'll help with your sense of sight.

-'Will it be Ollie?'

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

-my messages help your sense of smell.

-'Or will it be Bud?'

Sour, salty, bitter or sweet, I'm your taste buddy when you eat.

'It's Felix!' CHILDREN CHEER

Go, Felix! Go, Felix!

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

-Go, Felix!

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

Thanks, Felix. Today's question is how can I make my tent warmer?

Because being warm is something we feel, Felix will help us.

But stand by, Neurons, I may need you all today.

OK! Let's go.

These two friends will be finding out all about keeping warm.

Warm tent, warm hands, warm feet and warm toes.

So today for one day only, Matthew and Bethany become...

The Experimenters!

-Hi, Matthew and Bethany!

-Hi, Nina!

Thanks for your brilliant question - how can I make my tent warmer?

-Why did you ask that?

-We love our tent, but it gets cold.

Tents are brilliant fun to play in, but they can get cold,

especially in the winter. To answer your question,

we need to find out more about hot and cold. Let's go!

In these three beakers,

we have water at different temperatures - one is warm,

one is cold and one is in-between. Just by looking at them,

can you tell which one's hot and which one's cold?

-They all look the same.

-That is pretty difficult.

It's hard to see how hot or cold something is.

Do you know what this is?

-No, Nina.

-It's a thermometer.

That's a gadget we use in science to tell

temperature without touching it.

-Do you see the blue line in the middle of the thermometer?

-Yes.

When it's short and down at the bottom,

it means something is cold. When the blue line is long,

up towards the top, it means something is hot.

And there's a sun to show hot.

-Where's the blue line now?

-In the middle.

-Next to the house.

That's because the room we're in right now

is neither hot nor cold, it's what we call room temperature.

-So, how are you feeling now?

-Just right.

The room is just the right temperature.

Not all hot and sticky or too cold and shivery. Perfect!

We agree room temperature is the best temperature to be in.

All the thermometers are at room temperature now.

Let's put them in the beakers and see what happens. This one in there.

So looking at the thermometers,

-which beaker of water is the coldest?

-This one, Nina, because

-the line has gone down.

-Yeah!

On this one, the blue line is shortest

which tells us the water is the coldest.

Let's pop the snowflake on the beaker just so we remember. Good job!

So this thermometer has the longest line

up towards the top near the sun, so we know this water

is the hottest. What about this thermometer?

-What's happened to the blue line?

-It stayed the same, Nina.

It's still in the middle. It's neither hot nor cold

which means it's room temperature!

Amazing! Sometimes you don't have to touch something

to see if it is hot or cold.

Looking at a thermometer can tell you too.

We know a thermometer can show us if something is hot or cold,

we could use it to take the temperature in your tent.

But that still doesn't answer your question about the tent.

I've an idea for another experiment. Let's go!

Have a look at this!

This is a special camera called a thermal imaging camera

and can tell us if something is hot or cold by the colours

on this screen. I'm going to show you...some bags.

They've been heated so they're hot, but they're safe.

Now, let's just check they're hot by having a look at them

-through the thermal imaging camera.

-They're white!

They are definitely hot. Loads of heat coming from them

Over here, I have some newspaper, some clingfilm and...

-A sock.

-..a sock! That's right.

We're going to see what happens if we wrap these hot bags

-with some different materials.

-They all feel so different!

Let's have a look at them through the camera.

NINA GASPS Wow!

Look at that! The bags have gone all different colours now.

They look different colours depending on what they're covered in.

Look at the clingfilm-covered bag. That's bright white

so it's letting off lots of heat. But look at the bag

-with the newspaper round it.

-I can't see anything.

It's almost invisible. The heat is trapped inside.

That's because newspaper is a good insulator.

It keeps heat in and makes it stay warmer for longer.

So we've found out that insulation stops heat from escaping.

Some materials are better insulators than others.

Newspaper is a good insulator, but the clingfilm's not so good.

If we insulate your tent with some good insulators,

it'll keep the heat in and make it stay warmer for longer.

So far, we've found out the best way to keep heat in

is to use some type of insulation. But, actually, guys,

you've already got on a really good form of insulation.

-Can you guess what it is?

-Clothes.

Exactly right, your clothes. They help to insulate our bodies

by trapping the heat close to our skin and keeping us warm.

-Can you remember what the best insulator was?

-Newspaper.

Let's put lots of newspapers all over the floor of the tent

to stop the heat escaping into the ground.

Brilliant! We have insulated the floor of our tent with newspaper.

But what about the rest of the tent?

Heat can escape through the walls, but we can't put newspaper there.

-Is there anything else we can use?

-This sheet, Nina.

-Ooh!

This looks perfect!

Ooh! All the way over.

Oops, I nearly forgot, one last thing to keep the heat in...

we need to close the door because heat can get of there as well.

So to keep the heat in, you need to close the door.

-We have insulated the floor and the walls. Will it be warmer?

-Yeah.

Well, let's see.

NINA GASPS Brilliant, look at that!

By insulating the tent, we've stopped the heat escaping

-and that will keep it warmer for longer.

-I can even take my hat off.

Houses are bit like tents.

It's easy to be warm in the house if you keep doors closed.

If you're feeling chilly, wear some more clothes

rather than turning the heating up. So we've answered your question.

You can make your tent warmer by insulating it and keeping heat in.

Put newspapers on the floor, a sheet on the wall

-and zip up the door.

-Bye, Nina!

-Bye, Nina!

# Help protect our planet

# Go eco!

# Go eco!

# Walk to school or cycle

# Go eco!

# Go eco!

# Turn off the tap switch off the light

# Recycle what you can

# Help protect our planet

# Go eco!

# Go eco!

# Go eco! #

It's been such a great day, man!

The lines on the thermometer going up and down.

It's amazing they can tell us temperature.

I really enjoyed myself today.

It was great seeing the thermal camera that showed you

when things were hot or cold.

It's been a marvellous day, feeling the different temperatures.

Hot and cold, room temperature felt the best.

I've had a brilliant day!

Listening to the rustling and crinkly of the newspapers, fun!

I've had a fabby day!

I liked it when they were insulating the tent and keeping it warm!

We've had a sensational time today. I hope you've enjoyed it too. Bye!

Bye!

Subtitles by Red Bee Media Ltd