Crystals like those in Cueva de los Cristales form when hot, mineral-rich water fills underground cavities and remains undisturbed for a very long time. In the case of this cave, the water was ...

the water evaporating, and the salt crystals re-forming. Dissolving a solid in a liquid depends on the interactions and attractions between the molecules of the liquid (solvent) and the particles of ...

Liquid crystals are substances that flow like a liquid but maintain some of the ordered structure of crystals. Liquid-crystal molecules tend to be elongated and to orient in specific directions.

Add 2 teaspoons of room temperature water to each cup. At the same time, you and your adult partner should swirl the cups for about 30 seconds. Did you notice any differences in the amount of each ...

Doing so pushed the urea, oxygen from the surrounding air, and hydrogen in the water to form solid percarbamide crystals. The crystals were then filtered from the water, ready for use as a fertilizer.

A groundbreaking study on the freezing of water droplets suspended in air sheds light on a key process in Earth's water cycle: the transformation of supercooled water into ice.