Describing MatterWhat Properties Describes

matter?

Substance

• Compounds and elements are pure substances. • It is pure, has a specific make up or composition.• Example: Water is a pure substance:

•It is a compound •Molecular formula H20 • always the same

Physical Properties of Matter

• A physical property of a substance can be observed without changing it into another substance. • Hardness * Melting Point• Texture *Freezing Point• Color• Temperature• Solid, liquid, gas

Physical Properties of metal

• Luster – ability to shine• Ductility – can be shaped into a thin wire• Malleability – can be shaped into a flat surface• Conductivity – ability to transfer heat and electricity• Magnetism – attracted to magnets

Chemical Properties

• A chemical property will be observed when a substance changes into another substance• Example of chemical properties• Flammability• Reactivity• Ability to rust• combustion

Sodium combustion with water

• http://www.youtube.com/watch?v=MTcgo46nxNE