Every Drop Counts Nina and the Neurons

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

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

# She makes sense of her senses 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!

-ALL: Hi, Nina!

I've got an interesting experiment to show you,

involving these three beakers.

In here is honey,

in here is water,

and this one is olive oil.

First I'll pop in the olive oil.

Now the water.

Oooh! What a nice colour that's making.

And now the honey.

Oh, fantastic.

Let's take a closer look here.

They're not mixing together, look! Here's the oil,

the water's in the middle and the honey's at the bottom

so they're all floating on top of one another.

I've three different balls here. It might be fun

if you try and guess if each of these will sink or float.

So let's start with the ping-pong ball.

THEY SHOUT DIFFERENT THINGS

Let's see.

< See!

Oh! Well, I don't know about you,

but I'd say that's definitely floating.

The next ball...

is a glass ball.

-THEY SHOUT OUT

-Sink?!

Well, let's see.

Oh!

It made a right good plop.

Your guesses are getting good.

This is a bouncy ball, so what do you think?

THEY SHOUT

If you're not sure, the best thing to do is to try and see.

Here we go.

THEY SHOUT

Now, this is a bit different, look.

The ball has sunk to the bottom of the water, not through the honey.

Well, the reason that things float or sink is to do with something

called density.

Let's have a look at these three balls.

They're almost the same size, but the glass ball is much heavier

as it has a greater density.

That's the same with liquids.

Honey has more density than water, and water has more density than oil.

Everything has density, even you and me.

APPLAUSE

BLEEPING

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

Hi, Nina, I'm Aman. I've got a question for you.

Why does my mum tell me to turn off the tap when I'm brushing my teeth?

That's a great question, Aman.

We're going to have fun finding this out.

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

-Thanks, Nina. Bye.

Bye!

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

OK, neurons, time to get to work!

ALL: Neurons at the ready, Nina!

OK, today's question is, why does my mum tell me to turn the tap off

when I'm brushing my teeth.

Which neuron will be most useful in finding the answer?

ALL: 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 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 Luke!

-Yes!

ALL: Go Luke! Go Luke! Go Luke!

Go Luke! Go Luke! Go Luke!

Go Luke!

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

Thanks, Luke.

Today's question is, why does my mum tell me to turn the tap off

when I'm brushing my teeth.

We're going to a lot of looking about, so Luke's going to be busy.

Stand by, neurons, I think I might need help from all of you today.

OK. Let's go!

Aman's question is about water.

Dripping water, sloshing water,

running, flowing and splashing water.

So today, for one day only,

Aman and his cousin Elina become The Experimenters!

Hello, guys.

Hi, Nina!

Aman, your question is, why does my mum tell me to turn the tap off

when I'm brushing my teeth. Why do you want to know that?

Because my mum says that I shouldn't waste water, but I don't know why.

Well, Aman, mums usually know best.

To answer your question, I think we need to investigate further.

I know just the place to start.

Luke, are you standing by to help?

-At your service, Nina.

-Excellent. Let's go.

OK, I've brought you to a reservoir.

What is a reservoir for?

-Fishing?

-Sailing?

Feeding the ducks?

You could do those things in some reservoirs.

But it's not their main purpose.

A reservoir is a special loch that collects water.

When it rains, the reservoir fills up with water,

-and the water travels through lots of pipes to people's houses.

-Wow!

That sounds like miles and miles of pipes.

I can't see any pipes, Nina!

The reason we can't see any pipes is because they're underground.

Now, let me try something. Stay there.

I just collected water from the reservoir.

Would you like a drink of water?

No, yuck!

Why not? What's wrong with it?

-It's all mucky.

-It's got bits floating in it.

Yes, you're right.

Birds and fish have been swimming in it, plants have been growing in it,

insects and leaves have been falling into it. It's not very clean.

But don't worry. I have an idea.

I need some things for an experiment.

This glass...

..this plastic bottle with the bottom cut off...

..and some cotton wool.

I'll sit this cotton wool in the neck of the bottle.

But there are still some things missing to make the experiment work.

We need big stones, little stones and some sand.

Let's see if we can find them here.

That's the sand, now some smaller stones.

Oooh!

Oh, nice size, perfect.

Let's whop that in there.

Now I'll pour the water from the reservoir into the bottle.

Aman, can you hold the glass steady for me. Thank you.

Here we go.

Whoa, oh, some twigs there.

Now, let's watch closely.

Oh, it's coming!

It's coming out the bottom!

Oh, there's lots of twigs!

Wow, look at the water.

-It's much cleaner.

-That's right.

It's because the layers trap the bits

that were floating in the water.

It's called a filter.

So would you like to drink it now?

-No.

-No.

-Neither would I! The bits have gone,

but it's not completely clear.

There might be germs in there that we can't see.

Before reservoir water is safe to drink, the germs must be taken out.

That happens at a water treatment plant.

-Would you like to visit one?

-Yes!

Brilliant! Let's go.

This is the big pipe where the water comes in from the reservoir.

This huge filter cleans the reservoir water.

It's just like the filter we made.

What's happening now?

That's the dirty floating bits all being washed away.

This is where the water's cleaned a bit more

and all the germs are removed.

Then the water travels through lots of pipes

to get to people's houses like those over there.

As you can see, cleaning the water takes a lot of time and energy.

So, now we know where our water comes from

and how it gets to our houses.

-But we still haven't answered your question, have we?

-No.

Why does my mum tell me to turn the tap off when I'm brushing my teeth?

I've got an idea! Come on, this way!

OK, your mum must have a good reason

for telling you to turn the tap off when you brush your teeth.

so we'll do an experiment to find out why.

You'll brush your teeth for two minutes.

Aman, you brush your teeth in that sink with the tap running.

Elina, you brush your teeth in this sink without the tap running.

At the start you can wet your brush and rinse it at the end.

-Are you happy?

-Yes, Nina.

OK, let me get my stopwatch.

So are you ready...steady...go!

I like the feel of a bristly toothbrush,

-hard at work.

-Yeah! Brushing teeth is great!

It tastes all cool and fresh.

And smells minty too.

Listen to all that water splishing and splashing.

Oh, I just love that sound.

Time's up!

And stop.

So rinse your toothbrushes.

OK, so Aman you've used six litres of water, isn't that amazing?

Elina, you've only used a tiny bit. What a difference!

Let me see your teeth.

Very good job. Nice and clean.

Aman, your teeth don't look any cleaner than Elina's

-did you need all that water to brush your teeth?

-No, Nina.

Hmm, I think we've just answered your question.

OK, Aman, your question was

why does my mum tell me to turn the tap off when I'm brushing my teeth?

Firstly we discovered that our tap water comes from reservoirs

far away from our homes and we found out that water needs to be cleaned,

and that takes a lot of time and energy.

If you don't turn the tap off you waste lots of

precious, delicious, lovely clean water.

It'll just run down the plughole.

That's right. If you do turn the tap off, you're saving water

which saves energy and that helps protect the planet.

Thanks, Nina!

-Bye, guys!

-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! #

Ah, it's been such a great day, man,

looking at that lovely reservoir filled with beautiful cool water.

It's been a marvellous day.

It was so interesting watching them make a water filter.

Oh, I've had a brilliant day,

hearing all that splishing and splashing, I love the sound of water.

I've had a fabby day,

brushing teeth is great fun!

I've really enjoyed myself today,

there were so many minty smells when they brushed their teeth.

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

See you again soon! Bye!

Bye!

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