1. Section 3.1 Properties of Matter

2. Substances Matter that has a uniform and unchanging composition Pure composition Examples: table salt and water

3. Physical Properties of Matter Characteristic that can be observed and measured without changing composition Good for describing substances Examples: Density Color Odor Taste Melting Point Boiling Point

4. Physical Property Chart

5. Two Types of Physical Properties 1.Extensive properties- depend upon the amount of substance 2.Intensive properties- independent of the amount of substance

6. Extensive or Intensive? Mass Density Length Boiling Point Which is better for identifying unknown substances?

7. Chemical Properties of Matter The ability of a substance to combine with or change into one or more other substances

8. Chemical Properties Chart

9. States of Matter Solid Liquid Gas

10. Solid Definite shape and volume Tightly packed particles Expands when heated Not necessarily hard or rigid

11. Liquid Flowing matter Constant volume Takes shape of container Particles are not as tightly packed Particles can move past each other

12. Gas Matter that flows to conform to the shape of its container Fills entire container’s volume Particles are not tightly packed Easily compressed

13. Gas vs. Vapor Gas  Substance naturally in the gaseous state at room temperature »Carbon Dioxide Vapor  Gaseous state of substance that is solid or liquid at room temperature »Steam

14. States of Matter

15. Homework 1-5 on page 60 This will be handed in and graded!!