【臺詞】Do You Know S1-20 Eggs and Bread
Do You Know S1-20a Eggs1人有 · 書評1 Do You Know S1-20a Eggs
Do You Know S1-20b Bread1人有 · 書評1 Do You Know S1-20b Bread
Hello, I'm Maddie.
Today, I'm in the kitchen,
about to cook up something to eat.
One of my favourite things to cook
are eggs. Do you like eggs?
One of the best things about eggs
is there's loads of
different ways to cook them.
You can boil them, fry them,
scramble them, or,
my favourite, poach them.
Have you noticed that
no matter how you cook them,
they always go from this,
a clear, runny liquid
with a yellow blob in the middle,
to this, something that's
hard and white?
How does an egg work, and do
you know where eggs come from?
Let's find out.
You can buy eggs in all
sorts of places -
the supermarket, your local shop,
or even an egg farm, like this.
But do you know which animal
most eggs come from?
That's right, chickens!
CLUCKING
Listen to the sound they're making.
It's like a little
cluck-cluck-cluck-cluck.
It's actually quite noisy.
CLUCKING
Let's go see where
these chickens lay their eggs.
Excuse me!
Hello, girls.
This is a chicken coop,
and it's where the chickens live
and lay their eggs.
This chicken here is making some
rather funny noises.
SOFT WHISTLING
So I think she might be
about to lay an egg.
Let's go around the side and see
if we can find it.
Oh! The chickens have been busy.
Look how many eggs they've laid!
Aren't you clever, girls?
Let's collect some of these
and take them home.
Now you know where eggs come from,
but why do the inside of eggs go
hard and white when you cook them?
Do you know? Let's find out.
To show you how this turns into
this, we need to get cooking.
So let's crack a new egg into
the poaching pan.
Remember, if you want to cook
anything at home,
always get a grown-up to help you.
There are two parts to an egg.
This clear bit around the side
is called the egg white,
and the yellow blob in
the middle is called the egg yolk.
Keep an eye on them as they cook
and watch what happens.
We're speeding this up a bit
so you can see it happen.
Can you see how quickly the clear,
gooey bit is going white
and the yellow bit in the middle,
the yolk, is changing too?
It's gone quite firm.
It took just a few minutes to cook,
but what's going on inside the egg
to make it go white and hard?
To find out,
we need to take a closer look.
Here comes a chicken.
Inside the chicken,
a little egg grows.
It gets bigger and bigger
until it pops out.
Thank you!
The egg is cracked into the pan.
Inside egg whites and yolks
are lots of very,
very tiny things called proteins
floating in liquid.
They are so tiny
we can't see them with our eyes.
Each protein is twisted
and curled up.
When the egg is heated, the proteins
start to uncurl and join together.
As the egg gets hotter
and the chains join up,
they make a crisscross pattern
which traps the liquid inside.
As this happens, the egg turns white
and the yolk goes hard.
How brilliant is that?
All of that going on inside one egg.
Well, I've got one egg for my tea,
but I think I want two.
So let's cook another one, but
this time, use my special camera.
This is a thermal camera,
and it shows me
what's hot and what's cold
using different colours.
Let's heat this egg up
and see what it looks like.
And wow!
You can see that the flame is white.
That's because it's super,
super hot.
And the egg inside is blue.
That's because I've only just
put it in, so it's still cool.
Let's keep an eye on it and see if
this egg changes colour
as it gets hotter and hotter.
You can see the outside of the egg
is turning yellow
because as it's cooking,
it's getting warmer.
The inside of the egg is still blue
because it's not cooked yet,
so it's still cold.
Come on, yolk, catch up!
And, just a few moments later,
the egg is now all yellow and green,
which means it's warm
and almost cooked.
All of those proteins
will be uncurling
and forming the crisscross pattern
that traps the water droplets.
And if I have a look at it,
the egg's gone white
and the yolk has gone firm.
That means it's cooked
and ready to eat.
What was your favourite bit
about seeing how an egg works?
Do you remember what happened to
the egg as it was cooking?
It went hard and white.
Did you hear the clucking sound
the chickens made?
CLUCKING
And did you see my thermal camera
showing the egg turning from
blue to yellow
and green as it was cooked?
Mm! My eggs are yummy.
The next time you have eggs,
or you see eggs being cooked,
you'll know just what's going on
inside them.
I don't know about you, but when
I have eggs I like to have toast.
It's just bread that's been popped
in the toaster
or under the grill
for about a minute
until it's crunchy and hard,
like this.
So, you know how toast is made,
but what about the bread?
Do you know how bread is made?
Let's find out.
This is a bakery.
There are lots of different types
of bread made here,
and the main ingredient is flour.
So I've come to a mill.
And here, they make flour.
But this flour here is made from
a plant that's grown on farms.
It's called wheat,
and this is called an ear of wheat.
Inside this bit at the top
we find some grains.
And these grains are taken into
the mill to be turned into flour.
First, the grains are crushed
by rollers into smaller pieces.
This is called milling.
Next, the milled grains go through
this strange-looking machine.
It's called a sifter.
It works a little bit like
a sieve you might have at home,
only this one is a giant,
wobbly box!
It gets rid of all of the roughage
and leaves only the soft flour.
And here we have the finished flour
straight from the sifter.
It's lovely, light and soft.
The flour is loaded into a lorry
called a tanker
through this big, yellow tube.
Then it'll be driven off
to the bakery,
ready to be turned into
a loaf of bread.
And this is the bakery.
The tanker is off-loading the flour
into these enormous containers
called silos.
There are smaller silos which
contain the other ingredients -
salt mixed with water,
vegetable fat and yeast.
Do you know what yeast is?
Well, it's a special ingredient
that helps make bread rise.
It works best
when it's kept nice and warm.
All of the main ingredients
come into the bakery through pipes
in the ceiling and then they go
through a giant mixer.
Ha! Look at that! A huge ball
of bread dough just plopped out!
That would make one enormous loaf
of bread, wouldn't it?
The dough goes into this machine
to be divided.
Each chunk makes one loaf.
If you've ever made bread at home,
you'll know you have to do
something called kneading.
Kneading is when you use
the heel of your hand
to press and stretch the dough.
It makes it stretchy and elastic,
which helps the bread to rise.
Kneading takes quite a long time,
so the bakery have come up with
this clever
cone-shaped machine to
do the job quickly.
Look how fast the dough is whizzing
around the machine, being kneaded!
My special camera lets us
see things in slow motion,
so we can see in detail
how the kneading machine
twists and turns the bread.
Look how the machine
rolls the dough.
It looks like a football.
Once the pieces of bread dough have
been kneaded, they need to rest.
And this stage is called proofing.
And it happens here,
on these moving shelves.
During proofing,
the special ingredient, yeast,
starts to work to make
the dough rise.
After about eight minutes
the dough is dropped onto
these conveyor belts,
where it goes to get rolled.
Proofed dough goes through
a series of rollers,
where it's shaped and rolled
to be the right length.
They look a bit like sausages,
don't they?
From here, the dough is dropped
into baking tins
and continues along the
conveyor belt to another machine,
which gently warms the dough.
This makes the yeast work
a second time
so that the bread rises again.
Here the bread comes now.
Can you see how much bigger
each loaf is?
The yeast has worked inside
the dough to make it rise.
The dough is almost ready
to be baked,
but there's just time for
a few finishing touches.
That might be a dusting of flour
on top,
or, in this case,
a sprinkling of seeds.
The loaves are heading into this
enormous oven.
It's 39 metres long,
and that's the same as four buses.
The loaves stay in the oven
for around 25 minutes,
and then they come out here.
Can you see they've turned
a lovely golden-brown colour?
PFFT-PFFT!
Can you hear that noise?
That's the sound of the loaves
being sucked out of the baking tins.
It sounds a bit like a steam train,
doesn't it?
The finished loaves are cooled,
sliced...
..put in packets...
..and then taken in crates
to the warehouse.
Just look how much bread there is.
It takes four hours to make
a loaf of bread here,
and now it's ready to go
to the shops
for people like you and me
to buy and eat. Yum!
What did you like most about
seeing how bread is made?
Can you remember the main ingredient
of bread that comes from wheat?
That's right, it's flour.
Did you hear the machine that
sucks up the loaves from the tins?
PFFT-PFFT!
And did you see the kneading machine
slow down on my special camera?
So, the next time you sit down
to eat some bread,
you'll know just how it's made.
And you also know what happens
inside an egg when it's cooked.
I'm going to take this freshly-made
loaf home with me for my lunch.
I'll see you next time.