Explore the fundamental concept of matter in physics, everything that makes up the physical world around us. Matter is not ...

Researchers have created a new class of robots that can shift between solid and liquid forms on demand. In a series of tests, these new bots could change shape to run obstacle courses, carry ...

It is these materials that have formed our conventional understanding of solid matter. The other class of materials is granular, as we see in substances like rice, flour, or ground coffee.

Solid, liquid and gas are the three states of matter. Find out more about the states in this Bitesize Primary KS2 Science guide. ... Solids keep their shape. They do not flow like liquids.

You probably learned in school that there are three states of matter: solid, liquid and gas. Think ice cube, a puddle of water and steam. Maybe you also learned about a fourth state, known as plasma .