1. Physical and Chemical Properties

2. Physical Properties  Physical property: a characteristic of a substance that describes it such as the color, luster, odor, hardness… (Things asked about in the 20 questions game.)  Know the terms and definitions on page 85

3. Terms from page 85  Thermal conductivity: how well heat can flow through the substance.  Ductility: the ability to be pulled and made into wire.  Malleability: the ability to be rolled or pounded into various shapes.

4. Continued…  Solubility: the ability to dissolve in another substance.  Density: the “crowdedness” of the particles in the matter, the ratio of the mass to the volume.  State of matter: solid, liquid, gas or plasma.

5. Chemical properties  Chemical property: a characteristic of matter that describes its ability to participate in chemical reactions. Page 90

6. Key terms for Chemical Properties  Reactivity: the ability of a substance to change into one or more new substances  Flammability: the ability to burn  Oxidation: the ability to react with oxygen  Neutralizes: the ability to neutralize a substance