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 ...

Substances can exist in three states of matter - solid, liquid and gas. Substances can change states. To change the state of a substance energy must be transferred to, or from, the substance. Phew! On ...

MEASUREMENTS of the properties of condensed solutions of the inert gases should prove important in the development of the theory of solutions because of the comparatively simple nature of the ...

Everything around you - and even your body - is made up of the three phases of matter. Let's find out more. The whole world and everything we can see around us is made up of matter. Matter can be ...