Solids, liquids and gases. In a solid like this brick, the particles are regularly arranged touching their neighbours and move only by vibrating. This explains why solids have a fixed shape. In a ...

Elisa Oviedo transforms water from liquid to solid. Elisa Oviedo and her niece change water from liquid to solid using a freezer. Then they heat water up on the stove until it turns into gas. Elisa ...

Nigel Pereira on two inventions that seem to be mind-boggling as they seem to change the natural state of the resource in question. With deforestation and the burning of fossil fuels now widely ...

The four fundamental states of matter are solid, liquid, gas and plasma, but there others, such as Bose-Einstein condensates and time crystals, that are man-made. When you purchase through links on ...