Like many other things in nature, snowflakes have radial symmetry, which means that they're the same all the way around. To learn more about radial symmetry check out this informative slideshow:
Radial symmetry
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In first grade, we used paper and scissors to create snowflakes that are the same all the way around.
Although the each have radial symmetry, no two snowflakes are alike and neither are our artworks!