Water crystals are polymer-based crystals that absorb and slowly release water, acting like tiny sponges in the soil. They’re ...

Researchers at the University of Tsukuba have discovered a phenomenon—applying pressure to a copper-chromium Prussian blue ...

Save guides, add subjects and pick up where you left off with your BBC account. A hydrated solid contains water of crystallisation. This is water which is chemically combined to the crystal structure.