Teaching overview

Learning points

  • A snowflake is formed when tiny particles of ice form on bits of dust in the air.
  • Snowflakes always have six sides.
  • Although they seem white, snowflakes are actually transparent.

Curriculum keywords

  • States of matter
  • Weather

5 things you didn't know

Snow forming

1. Snow is formed when water vapour freezes onto minuscule particles travelling through the air.

Snow shapes

2. A snowflake always forms in a hexagonal (six-sided) shape.

Fresh water

3. Almost 69% of the world's fresh water is made up of snow and ice.

Colour of snow

4. Individual snowflakes are made of transparent ice, but when lots of snowflakes are grouped together, they can reflect light, making them look white.

Unusual colours

5. In higher altitudes, you can get "watermelon" snow – this is where it becomes pink with algae that grow there!

Spark a discussion

  • How is a snowflake made?
  • How many sides does a snowflake have?
  • Which do you think would melt faster: a single snowflake, or an ice cube? Why?

Explore our resources

Complete your lesson on snowflakes with teaching resources from Tigtag.

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Discover free online CPD for primary science from Reach Out CPD.

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