What Is Everything Made Of?
KindergartenEverything is made of tiny, tiny bits
Look around you. Your chair, your cup, the air you breathe, even you — every single thing is made of stuff. Scientists call that stuff matter. Matter is anything you can touch, or that takes up space, even if you can't see it (like air!).
If you could zoom in — closer than the strongest microscope — you would find that everything is built from super-tiny pieces called atoms. Atoms are so small that a single drop of water has more atoms in it than there are stars in the sky. Atoms join together like tiny building blocks to make everything: water, rocks, trees, and you.
- A rock is matter — it takes up space and you can touch it.
- Water is matter — it takes up space too, even though it's wet and pours.
- Air is matter — you can't see it, but it fills up a balloon, so it takes up space.
Like building with tiny LEGO bricks
Think about LEGO bricks. A few bricks can build a tower, a car, or a little house — same bricks, different things, just put together in different ways. Atoms work the same way! There are only about a hundred different kinds of atoms in the whole universe, but they combine in endless ways to make everything you have ever seen: your dog, a cloud, an ice cream cone, a star.
We can't see atoms with our eyes because they are far too small. But just because we can't see them doesn't mean they aren't there — the same way you can't see the wind, but you can see the leaves move and feel it on your face.
Try it — a matter treasure hunt
Walk around a room with a grown-up. Find five different things and touch each one.
- Pick an object, like a spoon, a pillow, or a cup of water.
- Ask: "Can I touch it?" and "Does it take up space?"
- If the answer is yes to both, write it down (or draw it!) as matter.
- Try to find something you think is not matter — like a shadow, a sound, or a thought. Talk about why those are different from matter.
- Count how many matter things you found. Every single one is made of atoms!
What is matter?
Matter is anything that takes up space and that you could touch (even if it's a gas, like air, which fills up whatever holds it). Nearly everything around you is matter.
What are atoms?
Atoms are the tiny, tiny building blocks that all matter is made from. They are far too small to see, even with most microscopes, but everything — you, your toys, the sky — is built out of them.
Is a shadow matter? Is sunlight matter?
No — a shadow is just a dark shape made when something blocks light, and it doesn't take up space or weigh anything. Light isn't matter either. Matter is things you could (in theory) scoop up and put in a jar.
How the ideas connect
Every key idea in this chapter, branching from the core concept — use it to see the whole picture at a glance.
The key facts, visualised
Worked problems, step by step
Follow each solution line by line, then try to reproduce it on paper before moving on.
Example 1Is a balloon full of air made of matter?
- Matter is anything that takes up space.
- Squeeze the balloon and it pushes back, so the air fills the space inside.
- Because the air takes up space, it must be matter.
Example 2A puddle dries up in the sun. Did the water bits disappear?
- The tiny water bits do not vanish.
- The sun gives them energy and they float off into the air as invisible bits.
- They are still matter, just spread out in the air now.
Now you try
Work each one out first, then tap to reveal the worked answer.