Snow is made of snowflakes and each one is made up of tiny ice crystals.

If you look under a microscope, these crystals are not always star shaped… They can be prisms or hexagonal plates.

But how do snowflakes form?

Well, they form in the Earth’s atmosphere, right above us, inside clouds.

That’s where all the ingredients come together: you need dust, water vapor and above all a temperature below 0°C.

It’s so cold that when water touches a dust particle, it freezes and sticks to it.