We all know from middle school science class that matter changes between a solid, a liquid, and a gas when you change the temperature or pressure acting on it. (Yes, some elements will change ...

Learn about solid, liquids and gases with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.

Find out what particle arrangements and movements are in solids, liquids, and gases in this BBC Bitesize KS3 physics guide.

THE low temperature exhibition, which is being arranged by the Science Museum, has already been mentioned in these columns; we now learn from the director of the Museum, Col. E. E. B. Mackintosh ...

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.

Like a liquid, a gas will take the shape of any container it is in and has no fixed shape. But unlike liquids and solids, gases can also change their size or volume. A plasma is similar to a gas ...