Why Do All Snowflakes Look Different?

Imagine you are a tiny builder making a snowflake. You start with six sides because water likes to stand in groups of six. As the flake falls through the air, it catches different bits of humidity and feels different temperatures. These little changes make each side grow slightly differently. One side might get long and pointy while another stays short and round. Because there are so many tiny steps where something can change, every snowflake ends up with its own special pattern. It is like walking through a garden where no two flowers look exactly the same!

Why Six Sides? [Water molecules](/search?q=water%20molecules) lock together in a [hexagon shape](/search?q=hexagon%20shape). This creates six strong arms that grow outwards from the center.

The Journey Down As the flake falls, it tumbles and spins. [Sometimes](/search?q=sometimes) it gets wetter or colder than before. These [small changes](/search?q=small%20changes) decide how much ice sticks to each arm. The more changes, the more unique the snowflake becomes.

Take the quiz →

Examples

  1. A snowflake falls through a warm layer then a cold one, changing its shape as it goes.
  2. Two flakes land on your glove but have different tiny branches because they caught different bits of water.
  3. You catch six flakes but only one looks exactly like another.

Ask a question

See also

Discussion

Recent activity

Categories: Math · physics· geometry· probability