1. MATTER matters!

2. Matter  Anything with mass and volume  Made of atoms that are always moving

3. Matter EXAMPLES NONEXAMPLES 

4. Properties of Matter

5. Property  Characteristic of something  Used to identify substances  Two types

6. Physical Properties

7. Physical property  Observed or measured

8. Examples of Physical Properties

9. Conductivity  Ability of a substance to transfer heat or electricity

10. State of Matter  Physical form in which something exists

11. Density  Amount of mass in a certain volume of a substance

12. Solubility  Ability of a substance to dissolve in another

13. Viscosity  Liquid’s resistance to flow  Thickness of a liquid  Liquid’s resistance to flow  Thickness of a liquid

14. Chemical Properties

15. Chemical property  Describes how a substance changes into a new one  You have to experiment on something to discover chemical properties.

16. Flammability  Ability to burn

17. Reactivity  How substance chemically combines with other things

18. Acidity or Basicity  Whether it is an acid or base

19. What physical or chemical property is described?  Oxygen is colorless and odorless  Copper turns green when exposed to the environment

20. What physical or chemical property is described?  Piece of metal is magnetic  Density = 1.45 g/mL  Diamonds are hard substances

21. What physical or chemical property is described?  Tree that is 27 m high  Sodium reacts easily with other elements  Copper conducts electricity

22. What physical or chemical property is described?  Mercury is a liquid at room temperature  Mass of 17 g  Gold is not flammable  The ball is red

23. What physical or chemical property is described?  Alka-seltzer produces a gas in water

24. Physical Changes

25. Physical change  Change that only affects one or more physical properties of a substance  Does not change what it is

26. Chemical Changes

27. Chemical change  Change that produces new substances  What is produced is different from what you started with  Cannot be reversed easily

28. Is it a chemical change?  Production of a gas  Change in color  Solid produced  Light produced  Energy change (cold/hot)