naure.com
NatureSurprise 5/5Difficulty 2/5Reviewed on September 14, 2026

Snowflakes are ice crystals with six sides.

Why it is true

Snowflakes are ice crystals with six sides, because the molecular structure of water forms hexagons. No two snowflakes are exactly alike, although they all share hexagonal symmetry.

Source: California Institute of Technology

Would you rather be asked first?

This is the reading side of the site, so the answer is in the sentence above — that is the whole point of it. Test yourself works the other way round: the question comes on its own, and the fact and the explanation only appear once you have answered.

Test yourself →10-question challenge

Related facts

More in Nature

See all →