how are snowflakes formed and why are no two the same?

how are snowflakes formed and why are no two the same?

step1.

vapour rises from the earth when heated to form clouds.

step2.

water m the sur

as the cloud falls below freezing, molecules condense into ice onto rface of the dust particle to form a hexagonal plate.

step3.

simple plates become unstable ...

as crystals become larger...

...they sprout arms.

step4.

as the crystals move through different temperatures...

a

o r g rms

s e t a l p w

step5.

the crystals continue growing as they move through different temperatures, forming snowf

flakes.

step6.

paths through different temperatures and humidi

-20 째F -10 0 10 20

ities give the snowflakes unique shapes. 30 째F

step7. however not all snowflakes are unique, as some duplicates have been found.

by jake and maddy runshaw massive