1. Physical Properties of Matter
Ms. Petrauskas

2. Definition
A physical property is a characteristic or description of a substance that can be determined without changing the composition of that substance.

3. Density
How much mass something has in relation to how much space it take up.
Mass per unit volume
(g/ml) or (g/cm3)

4. Melting Point
Temperature at which a solid melts.
0°C
37°C
1540°C

5. Hardness
Measure of resistance of a solid being scratched or dented

6. Boiling Point
The temperature at which a liquid begins to boil

7. Solubility
The ability of a substance to dissolve in a solvent such as water
What determines solubility?
Heat increases solubility
Surface Area increase dissolving rate
Solvent: the substance dissolving - water
Solute: the substance getting dissolved – sugar
What can be soluble?
Gases, solid and liquids
Gas: in soda
Solid: Sugar in water
Liquid: Honey in tea

8. Viscosity
Measure of a liquids resistance to flow: thicker the liquid the more viscous it is
E.g. glue is more viscous than water

9. Lustre
Shininess or dullness

10. Brittleness
Breakability or flexibility

11. Conductivity
How well a substance allows an electric current to pass through it

12. Malleability
The ability of a substance to be hammered into sheets

13. Ductility
The ability of a substance to be pulled into a wire

14. Others State: solid, liquid, gas Clarity: opaque, clear, translucent
Texture: smooth, rough
Colour: black, white, colourless
Shape: round, square, length/width/height
Odour: putrid, floral, musky
Taste: Is it sweet, sour, bitter, salty, spicy etc.

15. Quantitative Description using a measurement
Height in cm: Julie is 156cm tall
Weight in kg: Arthur is 95kg
Time: The movie was 130 minutes long
Volume: The soda was missing 30ml
Density: The density of the rock was 16.7 g/ml
Etc……

16. Qualitative A description of the quality of a substance or object.
Suzie is taller than Marlee
Sheila’s hair is darker than Megan’s
I can throw the tennis ball farther
That rope appears to be really sturdy

17. Physical Change Review
A change in which the composition remains unaltered and no new substances are produced
Ex. Change in form: breaking a glass
Ex. Changing state (freezing, melting, condensation, evaporation, sublimation)
Dissolving- mixing sugar and water

18. Important!
Follow lab safety rules- follow instructions; no tasting, keep things organized and neat, no horseplay, something breaks tell me right away
CLEAN UP AFTER USE!!!!!!!!
Zero tolerance rule; I catch you breaking the rules once and you’re OUT!