There are somewhere between 20 and 74,963 forms of ice because water can do all kinds of weird stuff when it freezes.
So far, scientists have experimentally determined the crystal structures for 19 types of ice.
Or maybe 20, depending on who you ask.
In this video, we’re going to charge through as many as we can in 10 minutes or so.
Reactions is a video series produced by the American Chemical Society and PBS Digital Studios.
The American Chemical Society (ACS) is a nonprofit organization chartered by the U.S. Congress.
ACS’ mission is to advance the broader chemistry enterprise and its practitioners for the benefit of Earth and all its people.
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