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Worksheets12.7 Science
Total questions: 10
Worksheet time: 2hrs 40mins
Name
Class
Date
1.
•Transitions between solid, liquid, and gas phases can be represented by heating and cooling
a)
curves
b)
transitions
c)
phases
d)
changes
2.
If temperature is increased at a constant rate, a solid will melt into a liquid, and then boil into a gas.
a)
convert
b)
melt
c)
change
d)
tranmsition
3.
Similarly, if temperature is decreased at a constant rate, a gas will condense into a liquid, and then freeze into a solid.
a)
condense
b)
melt
c)
freeze
d)
trabsition
4.
Notice that the curve shows periods where the temperature does not change. These __________ occur because energy is being used to changing the substance's phase, not raise the temperature. This is why water will not get hotter as it is boiling.
a)
doldrums
b)
transitions
c)
changes
d)
plateaus
5.
The heating curve illustrates the change from _____ to ________ to steam.
a)
The heating curve below illustrates the change The heating curve below illustrates the change from snow to water to steam.
b)
The heating curve below illustrates the change from ice to water to steam.
c)
The heating curve below illustrates the change from ice to lake to steam.
d)
The heating curve below illustrates the change from ice to ocean to steam.
6.
Solid particles are...
a)
tightly packed.
b)
loosely bonded and flowing.
c)
free to fly in all directions.
d)
so hot that the electrons are removed from the nucleus.
7.
Gas particles are...
a)
tightly packed.
b)
loosely bonded and flowing.
c)
free to fly in all directions.
d)
so hot that the electrons are removed from the nucleus.
8.
Liquid particles are...
a)
tightly packed.
b)
loosely bonded and flowing.
c)
free to fly in all directions.
d)
so hot that the electrons are removed from the nucleus.
9.
Liquids have...
a)
A definite shape and volume
b)
A definite shape but no definite volume
c)
No definite shape but a definite volume
d)
No definite shape or volume
10.
Which state of matter does this molecule diagram represent?
a)
Solid
b)
Liquid
c)
Gas
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