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 ...

Physicists are now watching matter behave in a way that defies everyday intuition, with atoms and even light itself arranging into structures that are rigid like a crystal yet able to flow like a ...

The states of matter are broadly classified as solid, liquid, gas, and plasma. A solid, like a pencil or ice, is a state with a definite shape and form that doesn't change easily. A liquid, such as ...