States of Matter States of matter Matter occupies space and has mass. Chemistry deals with the composition, properties and behavior of matter.
Solids are rigid and have a definite volume and shape.
They will take the shape of a container to some extent. This is particularly true of simple materials such as elements or simple compounds. On a damp and humid day there is a lot of water vapor in the air. The dry air of the desert has a distinct feel. At high altitudes the pressure is lower and water boils at a lower temperature.