WEBVTT

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Welcome to the Why Lab! Today Pico is
building something, and he needs a good team.

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A tower! I chose only the strongest blocks.

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With blocks this strong, it will reach the
sky!

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But your tower is leaning. Maybe we should

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also think about how the blocks fit
together.

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Wait! Do not fall! I thought one good
material was enough for everything.

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Our blocks give us an idea about teamwork.
But

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our bodies are much more complex than a
tower.

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So there are things working together inside
our

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bodies too? Which friend will we meet
today?

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Calcium! It is a mineral that our bodies
need.

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Let us discover how it works with others.

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Calcium, welcome to the team! I will leave

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room in my notebook for your friends as
well.

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In this drawing I can see bones and teeth.

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Does calcium have something to do with
them?

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Yes. Calcium helps build and maintain
strong bones and teeth. But it does not do

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this all alone.

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So our bones are little building blocks
inside us? Shall I give them a red roof too?

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Bones are living parts of the body. They
grow and change. Our building blocks are

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only a comparison.

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I like that word, comparison. It helps us
imagine something, but the two things are

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not exactly the same.

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Exactly. And calcium has other jobs too.
For

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example, we need it to help our muscles
work.

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I have robot gears! So you had better not
use me as a drawing of the human body.

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Here is my next question. Where do our
bodies

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get the calcium that they need every day?

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From the food we eat. Let us look at these
cards. They show different foods that

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contain calcium.

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I found milk, yogurt and cheese! Is the
whole

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team here, or are there other friends too?

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There are other sources, including some
green vegetables and foods that have

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calcium added to them.

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This drink looks like milk. Can we tell how

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much calcium it contains just by its
colour?

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The colour does not tell us. A grown-up can
read the label and help us find out more.

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I remember our colourful friends! Our eyes
can observe, but we need more information

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to learn what food contains.

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What if someone cannot eat a particular
food?

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Our friends do not all have the same
choices.

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Grown-ups help find suitable choices for
each child. Here we are exploring food

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cards, without tasting anything.

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So we have calcium! Is the job finished
now? Can everyone else go and have a rest?

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The body needs many nutrients. One of
calcium’s partners is vitamin D, which

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helps the body absorb calcium.

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Does absorption mean that calcium from food

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can move into the body, where it can be
used?

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Yes, that is the basic idea. Our little
drawing shows it simply, without every

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detail of the process.

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Calcium and vitamin D work together! I will
draw

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them side by side, and leave room for
others.

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Movement matters for our bones too. Walking,
playing and running help us as we grow.

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So our bodies need a variety of foods and
chances to play. There is no single magic

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ingredient!

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Then my team has grown! I will add another
page, because all these partners need more

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space in my notebook.

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Time for a little mystery. Do bones need
calcium all on its own, or do they need

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many partners? What do you think?

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I would choose many partners. We learned
that

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both food and movement have a part to play.

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Exactly. Calcium is important, but it is
one part of caring for our bodies. It

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cannot do everything alone.

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And now another question! If a drink is
white,

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does that mean I already know what is in
it?

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Not just by looking at it. I can ask a
grown-up to read the label with me.

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I have changed my first idea! Now I am
looking at the whole team, not just one

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strong block.

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Researchers do that too. They ask
questions, observe and change an idea when

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they learn something new.

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It is all right not to know everything. A

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good question can help us take another
step.

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Your mission is a team drawing. With a
grown-up, draw one food and one favourite

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game that gets you moving.

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I am drawing yogurt and a walk in the park.
Your choices can be different from mine.

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I am putting a big question mark in the
middle. It is for everything we still want

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to discover together!

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Talk about what you learned and what made
you change your mind. You do not need to

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taste any food for this drawing.

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Today I met calcium and learned something
else too. Inside our bodies, working

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together really matters.

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My tower did not become a skyscraper. But
it helped us make a discovery and ask an

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even better question!

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Next time we will meet iron that is not a
cooking pot. Until then, keep your

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curiosity alive!

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I observe, I ask, I discover! Now you can
turn

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off the screen and carry on exploring
together.