What are you really made of?

You're made of tiny building blocks called atoms, just like how a LEGO castle is made of tiny LEGO bricks.

If you could shrink down to the size of a grain of sand, and then keep shrinking until you’re smaller than a speck of dust, that’s when you’d see atoms, the little pieces everything is made of. Your body has billions of them!

Each atom is like a tiny solar system: there's a nucleus, which is like the sun in the middle, and electrons, which are like planets that zoom around it. The nucleus has even tinier pieces called protons and neutrons.

You might think of atoms as being invisible, but they’re everywhere! When you touch something, like a soft pillow or a cold glass of water, you're feeling the atoms in those things bumping into your atoms. That’s how everything connects and moves around, just like when you push against a wall, it pushes back!