AnswersPhysical ScienceProperties and Changes of Matter

Properties and Changes of Matter — Test Answers

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Which is a characteristic of atoms?

A
They come in ten major types.
B
They cannot combine together.
C
They can be found in nonliving things only.
D
They are the smallest units of matter.
22
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Which procedure would best allow a scientist to observe a chemical property of hydrochloric acid HCl solution?

A
cooling the HCl solution until it becomes solid, and measuring this temperature
B
measuring the mass of and volume of a sample of HCl solution to find its density
C
placing a conductivity probe into a beaker of HCl solution to determine if it conducts electricity
D
adding zinc to the HCl solution and observing whether or not bubbles are produced
23

Which is the amount of matter in an object?

A
weight
B
pounds
C
volume
D
mass
24

Based on the above description of transpiration and photosynthesis, which type of change happens to water during each process?

A
In transpiration, because its chemical properties change, water undergoes a chemical change and loses its identity. In photosynthesis, because it keeps its identity, water undergoes a physical change.
B
In transpiration, because some of its properties change, water undergoes a chemical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a physical change.
C
In transpiration, because some of its properties change, water undergoes a physical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a chemical change.
D
In transpiration, because its physical properties change, water undergoes a physical change and loses its identity. In photosynthesis, because it keeps its identity, water undergoes a chemical change.
25

Which arrow represents the change of state described above?

A
M
B
L
C
N
D
O

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