WorksheetsPhase Changes
Total questions: 14
Worksheet time: 21mins
Name
Class
Date
1.
In which state(s) of matter does the substance have a definite shape?
a)
Solid
b)
Liquid
c)
Gas
d)
Solid and Liquid
2.
Which state of matter has no fixed volume and no definite shape?
a)
Solid
b)
Liquid
c)
Gas
d)
None
3.
When a substance changes from a solid to a liquid it is called
a)
Evaporation
b)
Condensation
c)
Freezing
d)
Melting
4.
When a substance changes from a gas to a liquid it is called
a)
Evaporation
b)
Condensation
c)
Freezing
d)
Melting
5.
Boiling is the term we use to describe which phase change?
a)
Solid to a liquid
b)
Solid to a gas
c)
Gas to a liquid
d)
Liquid to a gas
6.
Sublimation is the term we use to describe which phase change?
a)
Liquid to a gas
b)
Solid to a liquid
c)
gas to a liquid
d)
Gas to a solid
7.
When a puddle of water dries up this process is called
a)
Condensation
b)
Evaporation
c)
Melting
d)
Transpiration
8.
When a substance changes phase, this change is a
a)
Physical Change
b)
Chemical Change
9.
What is the boiling point of water?
a)
80 degrees Celsius
b)
27 degrees Celsius
c)
90 degrees Celsius
d)
100 degrees Celsius
10.
When water boils, what is inside the bubbles?
a)
Air
b)
Oxygen gas
c)
Water Vapor
d)
Hydrogen gas
11.
Which of the following substances is the most volatile?
Water boiling point = 100 C
Ethanoic Acid boiling point = 128 C
Ethanol Boiling point = 78 C
Water boiling point = 100 C
Ethanoic Acid boiling point = 128 C
Ethanol Boiling point = 78 C
a)
Water
b)
Ethanoic Acid
c)
Ethanol
12.
What effect do impurities have on phase changes?
a)
They raise the boiling point and lower the freezing point
b)
They lower the boiling point and raise the freezing point
c)
They lower the boiling point and lower the freezing point
d)
They raise the boiling point and raise the freezing point
13.
What is the most likely reason for the trick gallium spoon that "disappeared" in the cup of water?
a)
Gallium's melting point is around room temperature
b)
The gallium must have been impure
c)
The gallium was magical
d)
Gallium's boiling point is around room temperature
14.
When creating a line graph on which axis should you plot time?
a)
y
b)
x
c)
it depends on your data
100 %
