1. Physical and Chemical Properties
PowerPoint by: Katherine Pease
Idea from: Garland ISD

2. How would you describe a lemon to someone who had never seen one?

3. Did you say anything about…
Color
Texture
Taste
Hardness
Size
Acidity (pH)
Burns eyes

4. You use the properties of an object to describe it.
All matter has Chemical and Physical Properties.

5. Copy the chart below into your own journal
Copy the chart below into your own journal. Record you observations of the lemon.
Properties
Before lab
After lab
Color
Shape
Length
Mass

6. Physical Properties
Can be measured or observed without changing the identity of the object.

7. Example of Physical Properties…
Color
Shape
Length
Volume
Mass
Density

8. Density is a measure of something’s mass in proportion to it’s volume.

9. Density = Mass/Volume
Mass
Volume

10. Things that are more dense have more mass per unit of volume than other things.

11. Chemical Properties are …
Based on how a substance reacts to other types of matter.

12. Examples of Chemical Properties…
Flammable
Reacts with Oxygen
Reacts with Light
Reacts with Water