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Worksheets(Savvas 3.3) Ch 3.3 Phase Changes
Total questions: 22
Worksheet time: 22mins
A phase change is
a change from one state of matter to another state of matter.
a change in temperature without changing state.
a chemical reaction between substances.
the splitting of an atom into smaller parts.
What happens to the temperature of a substance during a phase change?
The temperature remains constant during a phase change.
The temperature increases rapidly during a phase change.
The temperature decreases rapidly during a phase change.
The temperature fluctuates unpredictably during a phase change.
Is the following sentence true or false? The temperature at which a substance freezes is lower than the temperature at which it melts.
True
False
A substance absorbs energy from its surroundings during a(n) __________ change.
endothermic
exothermic
isothermal
chemical
As water freezes, it releases heat to its surroundings. Freezing is an example of a(n) __________ change.
exothermic
endothermic
isothermal
adiabatic
The vaporization of a liquid is the process in which a liquid substance transitions into a gaseous state, either through _____ or _____.
sublimation or deposition
condensing or boiling
melting or freezing
evaporation or boiling
The phase change in which a substance changes from a gas into a liquid is called __________.
condensation
sublimation
evaporation
melting
The phase change in which a substance changes from a solid into a liquid is called __________.
condensation
sublimation
freezing
melting
Is the following sentence true or false? A gas absorbs energy from the surroundings as it changes into a liquid.
True
False
Dry ice can change directly from a solid to a gas without forming a liquid first. This process is an example of __________.
sublimation
condensation
melting
deposition
What is deposition?
Deposition is the phase change in which a gas changes directly into a solid without passing through the liquid phase.
Deposition is the process where a solid turns directly into a gas without becoming a liquid.
Deposition is the process of a liquid turning into a gas.
Deposition is the process of a solid melting into a liquid.
Through what phase change does your body cool itself? (Hint: think about what happens to your sweat.)
Condensation
Freezing
Sublimation
Evaporation
In colder environments, gaseous water vapor can turn directly to solid ice on a window. What is this process called?
Deposition
Evaporation
Freezing
Vaporization
This is a graph of the data when a solid is heated. In which segment is the substance in liquid form?
BC
AB
CD
EF
This is a graph of the data when a solid is heated. In which segment is the substance melting?
BC
AB
CD
EF
DE
This is a graph of the data when a solid is heated. In which segment is the substance boiling?
BC
AB
CD
EF
DE
What is condensation?
change from liquid to gas
change from gas to liquid
change from solid to gas
change from liquid to solid
When dripping water turns into icicles, this process is called
melting
vaporization
freezing
condensation
Compare evaporation and boiling. The process of boiling is
faster and occurs throughout the liquid.
faster and occurs at the surface of the liquid.
the same rate as evaporation and boiling occurs at the surface the liquid.
slower and occurs throughout the liquid.
What happens to the mass of a material when it changes states?
It increases
It decreases
It stays the same
It depends on the material
This diagram lists the melting points and boiling points of several substances. Using this data, OCTANE would be a ______ at room temperature (20°C)
solid
liquid
gas
This diagram lists the melting points and boiling points of several substances. Using this data, AMMONIA would be a ______ at room temperature (20°C)
solid
liquid
gas
