Properties of Matter
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C HAPTER
Chapter 1. Properties of Matter
1
Properties of Matter
Worksheet
Name _____________________ Class ______________________ Date ________________
Answer each of the questions below to show your achievement of the lesson objectives
Lesson Objective: Describe a substance according to its physical properties.
1. One of the following is not a physical property of a substance.
a.
b.
c.
d.
conductivity
reactivity with acids
degree of magnetism
melting point
2. Which of the following is a pure substance?
a.
b.
c.
d.
3.
4.
5.
6.
7.
ocean water
vanilla ice cream
a diamond
quartz crystals
True or False: The identity of a pure substance will change when it is melted or frozen.
True or False: A physical change does not alter the identity of the substance.
The ability of copper to be made into sheets is called ________ .
Not all metals are ________ .
Sodium metal melts at 97°Celsius. The melting point is a ___________ property.
Lesson Objective: Distinguish between extensive and intensive properties.
8. An example of an intensive property would be
a.
b.
c.
d.
mass of the material
volume of the material
color of the material
length of the material
9. How copper conducts electricity is an
a.
b.
c.
d.
intensive property
intangible property
extensive property
expansive property
10. True or False: The length of a copper cable is an extensive property.
11. True or False: Intensive properties depend on the color of the material.
Lesson Objective: Describe the three states of matter.
12. The state of matter that has a definite shape and volume is
a. a crystal of sodium chloride
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b. neon gas in a tube
c. a quart of milk
d. carbon dioxide in air
13. Only one of the following items can be compressed.
a.
b.
c.
d.
sand
ice
steam
water
14. Which of the following is true about gases?
a.
b.
c.
d.
gas molecules are arranged in an orderly fashion
gas molecules are in constant motion
hydrogen and nitrogen are liquids at room temperature
a vapor is a solid at room temperature
15. Which of the following is not true of liquids?
a.
b.
c.
d.
liquids have a definite volume
liquids can form vapors at higher temperatures
the molecules of a liquid are not rigidly ordered
liquids are very compressible.
16. True or False: Solids are very compressible.
17. True or False: The particles in a solid are arranged in an orderly fashion.
18. True or False: There are large spaces between the molecules of a gas.
Match the following answers to the definitions in Questions 19-22:
a.
b.
c.
d.
19.
20.
21.
22.
solid
gas
vapor
liquid
_______ easily compressible
_____ gaseous state of a substance that is a solid or liquid at room temperature.
_____ a form of matter with a definite volume, but an indefinite shape.
_____ the form of matter illustrated by a gold nugget.
Lesson Objective: Identify physical changes to matter.
23. Read the following passage and answer the questions.
24. As an ice cube melts and it acquires the ability to flow, its shape changes. However, its composition does
not change. Melting is an example of a physical change. A physical change is a change to a sample of
matter in which some properties of the material change, but the identity of the matter does not. Physical
changes can further be classified as reversible or irreversible. The melted ice cube may be refrozen, so melting
is a reversible physical change. Physical changes that involve a change of state are all reversible. Other
changes of state include vaporization (liquid to gas), freezing (liquid to solid), and condensation (gas to liquid).
Dissolving is also a reversible physical change. When salt is dissolved in water, the salt is said to have entered
the aqueous state. Boiling off the water will cause the salt to reform in its solid state. An example of an
irreversible physical change would be grinding a piece of wood into sawdust. Such a change is irreversible
because the sawdust cannot be reconstituted into the same piece of wood that it was before. Cutting the grass
or pulverizing a rock would be other irreversible physical changes.
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Chapter 1. Properties of Matter
a. Would boiling water be reversible if the water vapor goes off into the atmosphere?
b. Is burning gasoline in a car engine a physical change?
25. One of the following is not a physical change
a.
b.
c.
d.
burning wood
chopping wood up
making furniture from wood
stacking wood
26. All of the following except one are reversible physical changes
a.
b.
c.
d.
27.
28.
29.
30.
boiling water
making ice cubes
bagging corn kernels
making popcorn
True or False: A physical change involves a change in the identity of the sample.
True or False: Making earrings from a gold nugget is an irreversible physical change.
True or False: Bending aluminum sheets is an irreversible physical change.
You cook an egg on the stove and heat your coffee in the microwave. Which process is a physical change?
Explain your answer.
Answer Key
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
b
c
false
true
malleability
conductive
physical
c
a
true
false
a
c
b
d
false
true
true
b
c
d
a
1. Yes, because the water vapor could condense and form rain somewhere else.
2. No, the gasoline molecules are converted to other substances.
23. a
24. d
25. false
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26. true
27. false
28. Heating the coffee is a physical change since he material is not altered. Cooking the eggs changes the chemical
composition and is not a physical change.
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