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.

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 ...

At ordinary temperature gases expand more than solid and liquid. The coefficient of gas expansion is dependent on temperature. For an ideal gas, the coefficient of volume expansion at constant ...

Cryogenic liquids are materials with a boiling point of less than – 100 °F (-73 °C); common examples include liquid nitrogen, helium, and argon, and dry ice/alcohol slurries. Cryogenic liquids undergo ...

In gases the particles are far apart ... so would feel very heavy. Some liquids have a higher density than solids. For example, wood is a solid but has a lower density than water, which is ...

Students explore the attractions and motion of atoms and molecules as they experiment with and observe the heating and cooling of a solid, liquid, and gas.