Matter- physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
examples of matter: Matter exists in three states: solids, liquids and gases. Some scientists also believe matter includes other states, such as plasma and Bose-Einstein. Matter is not limited to living or animate objects. For example, both a camera and a dog are matter, since they take up space and have mass.
Pure substances: substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together).
Examples of pure substances: include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate)
Element- a part or aspect of something abstract, especially one that is essential or characteristic.
Examples of elements: helium (He),ozone (O3),chlorine (Cl2),hydrogen (H2),oxygen (O2),diamond (pure carbon),diamond set in graphite (still pure carbon),iron skillet (Fe)