Why Are Snowflakes Flat?

We’re told that all snowflakes are unique. But when you really think about them, snowflakes get even more interesting - as ice crystals forming in 3D space, why are snowflakes basically 2D? We make science kits now! Go to to learn more, order one online, or find them in a store near you. Hosted by: Hank Green SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at ---------- Support SciShow by becoming a patron on Patreon: h