1. Notes – Properties of Matter I.Matter has observable properties. A.Physical properties describe a substance. 1.Shape, color, size, texture, volume, mass 2.Physical properties – characteristics of a substance that can be observed without changing the identity of the substance 3.Use your senses 4.Density – how much mass/matter is in a given unit of volume (g/cm 3 )

2. Notes 5.Physical changes a.A change in any physical property without changing the identity of the substance. B.Chemical properties describe how substances form new substances. 1.Chemical properties and changes a.Chemical properties – how substances can form new substances b.Chemical change – the change of one substance into another substance

3. Notes 2.Signs of a chemical change a.Production of an odor b.Change in temperature 1.Burning logs c.Change in color 1.Fruit ripening d.Formation of bubbles 1.Antacid tablet e.Formation of a solid 1.Clam shells