Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Properties: Physical or Chemical
1. Copper wire will conduct electricity.
2. Oxygen is a gas a room temperature.
3. Copper forms green copper carbonate when in
contact with moist air.
4. The density of sunflower oil is 0.925 g/mL.
5. Magnesium will burn brightly when ignited.
6. Iron has the ability to rust.
7. Food is less likely to rot or decay if refrigerated.
8. Potassium chloride will dissolve (is soluble) in water.
9. The sugars in fruit juices will ferment in the absence
of oxygen.
10. Acids give candy a sour taste.
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Properties: Physical or Chemical
1. physical
2. physical
3. chemical
4. physical
5. chemical
6. chemical
7. chemical
8. physical
9. chemical
10. physical
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Properties: Physical or Chemical
11. The melting point of ice is 0°C.
12. Paper is a flammable material.
13. Solid sodium explodes when in contact with water.
14. Titanium is a hard metal with high tensile strength.
15. Most metals have high thermal conductivity.
16. Liquid water is not very chemically reactive.
17. Wood will combust in the presence of oxygen.
18. Aluminum is a lustrous, or shiny, metal.
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Properties: Physical or Chemical
11. physical
12. chemical
13. chemical
14. physical
15. physical
16. chemical
17. chemical
18. physical
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Physical Properties: Extensive or Intensive
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Melting/freezing point
Taste
Boiling point
Mass
Length
Hardness
Volume
Color
Density
Weight
11.
12.
13.
14.
15.
16.
17.
18.
19.
Odor
Shape
Electrical conductivity
Thermal conductivity
State of matter at
room temperature
Malleability
Ductility
Temperature
Viscosity
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Physical Properties: Extensive or Intensive
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
intensive
intensive
intensive
extensive
extensive
intensive
extensive
intensive
intensive
extensive
11.
12.
13.
14.
15.
16.
17.
18.
19.
intensive
intensive
intensive
intensive
intensive
intensive
intensive
intensive
intensive
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Changes: Physical or Chemical
1. The sand was separated from the water by
filtration.
2. Twenty (20) grams of sodium chloride was
dissolved in 100 grams of water.
3. Iron produces rust when exposed to oxygen.
4. The tree was cut into logs.
5. The bananas have ripened.
6. The candle burned for three hours.
7. Fifteen (15) grams of water became ice at 0°C.
8. Potassium metal ignites when dropped in water.
9. The coffee beans were ground with the coffee
grinder.
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Changes: Physical or Chemical
1. physical
2. physical
3. chemical
4. physical
5. chemical
6. chemical
7. physical
8. chemical
9. physical
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Changes: Physical or Chemical
10. The paper was crumpled before being placed
in the recycling bin.
11. Aluminum combines with oxygen to form
aluminum oxide.
12. Rubbing alcohol evaporates at room
temperature.
13. Potassium chlorate decomposes to produce
potassium chloride and oxygen.
14. Water droplets condensed on the outside of the
tea glass.
15. The mixture of alcohol and water was separated
by distillation.
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Changes: Physical or Chemical
10. physical
11.
12.
13.
14.
15.
chemical
physical
chemical
physical
physical
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Changes: Physical or Chemical
16. The silver platter is tarnished.
17. The leaves change color each fall.
18. Hydrogen peroxide was used to bleach her hair.
19. The magnesium was cut into 1-cm ribbons.
20. Milk sours if not refrigerated.
21. The chalk was crushed with the mortar and pestle.
22. Hydrochloric acid reacts with potassium hydroxide
to produce a salt, water, and heat.
23. Dry ice sublimes without melting.
24. A match ignites when struck on a flint.
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Changes: Physical or Chemical
16. chemical
17. chemical
18. chemical
19. physical
20. chemical
21. physical
22. chemical
23. physical
24. chemical
Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Chemical Change
List four of the six indicators that provide evidence of
chemical change.
Writing Practice
In a well-developed paragraph, explain the
difference between a physical property and a
chemical property and between a physical change
and a chemical change.
Use the terms: extensive, intensive, identity, reaction,
composition, substance
 Give examples of each type of property and change.
BONUS: Explain the difference between vaporization and
evaporation.

Tuesday, 09/03/2013
U2-11
Properties and Changes Practice
Chemical Change
List four of the six indicators that provide evidence of
chemical change.
1. Formation of a gas
2. Formation of a precipitate
3. Change in color
4. Change in energy
5. Change in magnetism
6. Change in smell or production of odor