Changes in Matter Answers

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To observe a [BLANK] property of a substance, the substance must interact with another substance, such as when gasoline burns or when sodium metal reacts with water.

A
chemical
B
physical
C
electrical
D
thermal
2
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Which statement describes a physical property of copper?

A
It reacts with strong acids.
B
It can be reshaped by a force.
C
It ignites at high temperatures.
D
It can combine with oxygen.
3

Which term refers to a property that depends only on the amount of a substance?

A
flammability
B
extensive
C
intensive
D
reactivity
4

Which of these is an extensive property of a substance?

A
color
B
hardness
C
malleability
D
volume
5

Which of these is a chemical property of a substance?

A
texture
B
ductility
C
reactivity
D
conductivity
6

Which of these is an example of a physical change?

A
sugar dissolving in warm water
B
iron rusting in the presence of moist air
C
wood burning in the presence of oxygen
D
baking soda reacting with acid to form a gas
7

Which procedure could a student use to examine an intensive property of a rectangular block of wood?

A
Find the mass.
B
Record the length.
C
Measure the volume.
D
Determine the density.
8

Which of these is an example of a physical change?

A
a banana ripening in the air
B
hydrogen burning in the air
C
zinc reacting with an acid
D
liquid water turning into vapor
9

Which is an intensive property of a substance?

A
density
B
volume
C
length
D
mass
10

Which of these is an example of investigating an intensive property?

A
weighing sand in a bag
B
measuring the length of wire
C
determining if a rock is magnetic
D
recording the volume of water in a cylinder

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