1. Physical Properties
Properties of Matter

2. Physical Properties
Physical property is a property that can be observed without changing the identity of the substance.
Examples:
viscosity
conductivity
malleability
hardness
magnetism
melting point
boiling point
density
color

3. Examples of Physical Properties
Viscosity of a substance is its resistance to flow.
Examples: water = low viscosity
honey = high viscosity
Conductivity is a material’s ability to allow heat to flow.
Examples: metal = high conductivity wood = poor conductivity

4. Examples of Physical Properties
Malleability of a substance is its ability to be hammered into a thin sheet
Melting and Boiling points are the temperatures at which a solid becomes a liquid and a liquid becomes a gas.
Density of a substance is the ratio of its mass compared to its volume.

5. Physical Properties to separate mixtures
Two common separation methods:
Filtration – process that separates materials based on the size of their particles.
Distillation – process that separates the substances in a solution based on their boiling points.

6. Physical Change
A change in the appearance, without changing the composition of the material.
Can be reversible, or irreversible
Substance may seem different, but the way the atoms link up are the same. It

7. Chemical Properties
Properties of Matter

8. Chemical Properties
Chemical property is any ability to produce a change in the composition of matter.
Examples of chemical properties . . .
flammability
reactivity
Material’s ability to burn in the presence of oxygen.
How readily a substance combines chemically with other substances.

9. Chemical Changes
Chemical changes occur when a substance reacts and forms one or more new substances.
You know a chemical change has occurred when . . .
A change in color produced by reaction.
Production of a gas.
Formation of a precipitate.

10. For the next slides tell whether they show a physical or chemical change.
Write the example under the correct heading in the chart.

11. Physical Change

12. Chemical Change

13. Chemical Change

14. Physical Change

15. Physical Change

16. Chemical Change