1. Properties & Changes

2. Property- a characteristic (tells you something about the object)

3. Physical Property- property that can be measured or observed without changing the composition of the object (what it’s made of)
Ask for one or two examples of a physical property

4. Extensive Property- a physical property that does depend on amount of substance (it will change if you have more or less of substance)
Examples: mass, length, volume

5. Intensive Property- a physical property that does not depend on amount of substance (it will stay the same even if you have more of it)
Examples: density, color, odor, luster (how shiny), melting/freezing/boiling points

6. Chemical Property- a characteristic describe how matter behaves in a chemical reaction. There is a change to the composition (what it is made of)
See if they can come up with an example

7. Physical Change- a change that alters the matter without changing the composition- (it remains the same type of substance)
Discuss the two pictures, why are the considered physical changes

8. Chemical Change- a change that alters the matter and does change the composition- (you get something new)
Discuss the two pictures, why are the considered chemical changes.