1. Physical and Chemical Properties

2. Physical Properties
Characteristics that distinguish one type of matter from another.
Can be observed
Identity of the matter being observed is not changed.

3. Physical Properties
Density
Melting Point
Boiling Point

4. Density The amount of matter in a given space, or volume D=M/V
Corn Oil
Water
Shampoo
Dish Detergent
Antifreeze
Maple Syrup
The amount of matter in a given space, or volume
D=M/V
Example: Oil & Water
________

5. Melting and boiling point are physical properties.
Melting point → the temperature at which a substance changes from a solid to a liquid
Boiling point → the temperature at which a liquid boils, or changes from a liquid to a gas

6. Other Types of Physical Properties
Color
Odor
Size
Shape
Texture
Hardness
Magnetic
Phase of Matter
Solubility
Elasticity
Motion
Temperature
Sound
Taste
Viscosity
Metallic / Nonmetallic
Luster
Ductility
Malleability
Conductivity
Compressibility
Radioactivity
Organic
Inorganic
Show magnet and iron fillings

7. Examples The front board is white. Table tops are a rectangle.
The glass in the windows is an amorphous solid.
The faucet is metallic.
The globe is magnetic.
The odor in the room is pleasant.
The soil in the terrarium is organic.
The fish tank water is not very viscous.

8. Chemical Properties
Characteristics that describe the "potential" to undergo some chemical change or reaction by virtue of its composition

9. Chemical Properties
Reactivity
Combustibility

10. Reactivity
The ability of two or more substances to combine and form one or more new substances

11. Flammability
The ability of a substance to catch fire quickly

12. Combustibility
The ability of a substance to burn

13. Physical and Chemical Changes

14. What is a Physical Change?
A physical change alters (changes) the form of a substance, but does not change it to another substance.
Example:
Making Orange Juice

15. What is a Chemical Change?
When a substance undergoes a chemical change, it is changed into a different substance with different properties.
Example:
Baking a Cake

16. Signs of a Chemical Change
Color Change
Precipitation

17. Precipitation
Precipitation – the solid that forms from a solution during a chemical reaction.
It looks like a cloudy solid in an otherwise clear solution.

18. Signs of a Chemical Change
Gas Production
Temperature Change

19. Signs of a Chemical Change
Changes in Characteristic Properties (odor, light given off)

20. Chemical or Physical Change?
Cutting paper?
Physical

21. Chemical or Physical Change?
Ice melting?
Physical

22. Changes in States of Matter
All changes in state of matter are physical!

23. Chemical or Physical Change?
Rocket fuel burning?
Chemical

24. Chemical or Physical Change?
Toast burning?
Chemical

25. Chemical or Physical Change?
Sawing wood?
Physical

26. Chemical or Physical Change?
Metal rusting?
Chemical

27. Chemical or Physical Change?
Disappearing puddle?
Physical

28. Chemical or Physical Change?
Candle burning?
Chemical

29. Chemical or Physical Change?
Dry ice?
Physical