Substances can exist in three states of matter - solid, liquid and gas. All substances are made from particles, and the forces between the particles are different in solids, liquids and gases. 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 ...

THE tenets of physics can seem carved in stone. The speed of light is a constant. There are four fundamental forces. Theoretically, rules like these are open to revision. But new contenders had better ...