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To download a PDF of this article, visit: cenm.ag/snowice
References used to create this graphic:
Connor, Deanna. How snowflakes get their shapes. Accessed Jan. 21, 2020.
McNeill , V. Faye and Hastings, Meredith G. Ice in the environment: connections to atmospheric chemistry. Environ. Res. Lett.(2008) DOI: 10.1088/1748-9326/3/4/045004
The Shapes of Snowflakes. Compound Interest. Accessed Jan. 21, 2020.
A collaboration between C&EN and Andy Brunning, author of the popular graphics blog Compound Interest
To see more of Brunning’s work, go to compoundchem.com. To see all of C&EN’s Periodic Graphics, visit cenm.ag/periodicgraphics.
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Thanks for your comment. You're right that the graph shows the density of water at all of the temperatures shown. In retrospect, I can see how the inclusion of the ice cubes in the graphic is a bit deceptive here, as it implies that it also shows the density of ice.
As you say, the volume change on freezing means that the density of ice would be approximately 0.92 grams per centimetre cubed at 0˚C. I'll see if we can change the plot to make it more accurate.
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