1. 5.2 What are Physical Properties?

2. Physical Properties
 -Can be observed or measured without changing the composition of matter.
-Physical properties are used to observe and describe matter.

3. Physical properties include:
appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.
The three states of matter are: solid, liquid, and gas.
The melting point and boiling point are related to changes of the state of matter. All matter may exist in any of three physical states of matter.
Solubility: how well something is able to dissolve

4. 5 Senses
Sight
Smell
Taste
Touch
Hearing

5. Viscosity Tendency of a fluid to keep from flowing
The greater the viscosity, the slower the liquid moves

6. Conductivity
Material’s ability to allow heat or electricity to flow

7. Malleability
Ability of a material to be shaped or hammered without breaking

8. Hardness
Ability of a material to be scratched

9. Melting & Boiling Points
Each substance has their own
Can be used to identify a substance

10. Density Density=Mass/volume
Can be used to test the purity of a substance because all matter has a unique density

11. 5.3 Chemical Properties
How Substances Change

12. Chemical Properties
Ability to produce a change in the composition of matter
Can be observed only as the matter is changing

13. Combustibility (Flammability)
Material’s ability to burn in the presence of oxygen

14. Reactivity
How readily a substance combines chemically with other substances

15. Production of a Precipitate
When two solutions are mixed together and a insoluble solid is created.

16. What are some differences between chemical & physical properties?

17. What properties (physical or chemical) are helpful in identifying a substance?