WorksheetsPhases of Matter
Total questions: 30
Worksheet time: 17mins
Name
Class
Date
1.
A wet shirt is put on a clothesline to dry on a sunny day. The shirt dries because water molecules
a)
gain heat energy and condense
b)
gain heat energy and evaporate
c)
lose heat energy and condense
d)
lose heat energy and evaporate
2.
A substance has a freezing point of -38 degrees C and a boiling point of 356 degrees C. At what temperature would this substance be in a liquid state?
a)
-100 degrees C
b)
-50 degrees C
c)
80 degrees C
d)
375 degrees C
3.
At approximately which temperature does a phase change begin?
a)
-30 degrees C
b)
-10 degrees C
c)
0 degrees C
d)
18 degrees C
4.
During which phase is heat energy absorbed by a substance?
a)
liquid to gas
b)
gas to solid
c)
liquid to solid
d)
gas to liquid
5.
Water at 20 degrees C in an uncovered pan is evaporating very slowly. What could be done to the water to make it evaporate more quickly?
a)
cover it
b)
heat it
c)
place it in the dark
d)
put salt in it
6.
Why does water NOT change temperature during phase changes?
a)
Because the molecules of water take in all the heat to their nucleus
b)
Because heat is not the same thing as temperature
c)
Because adding heat doesn't ever change the temperature of water
d)
Because all of the energy is used to overcome the attraction of molecules
7.
What phase of matter is illustrated in "C"
a)
solid
b)
liquid
c)
gas
d)
melting
8.
What is labelled "B" on the graph?
a)
solids
b)
liquids
c)
gases
d)
a phase change
9.
What is happening at "D" on the graph?
a)
Water is boiling
b)
water is evaporating
c)
water is melting
d)
the sublimation of water
10.
Why does the graph have two flat lines at "b" and "d"?
a)
Those are times when we took the water off the hot plate
b)
Those are phase changes where temperature doesn't change while adding heat
c)
The line is flat because the water is all in the solid or gas phase
d)
The line is flat because temperature increases the most at those locations
11.
Thermal energy ALWAYS moves from _____ to _____.
a)
solid to liquid
b)
ice to water
c)
hot to cold
d)
solid to gas
12.
If an object has particles that are moving very quickly, the object 's temperature is probably _____.
a)
cold
b)
slow
c)
big
d)
hot
13.
Which of the following terms identifies the change from a liquid to gas?
a)
Evaporation
b)
Condensation
c)
Melting
d)
Freezing
14.
The phase change from water vapor to liquid water is known as...
a)
evaporation
b)
precipitation
c)
condensation
d)
sublimation
15.
All changes in the state of matter of a substance requires...
a)
vibration
b)
water
c)
permission
d)
energy
16.
When a puddle of water dries up this process is called...
a)
Condensation
b)
Evaporation
c)
Melting
d)
Boiling
17.
What is an example of condensation?
a)
Water boiling
b)
Water turning into ice
c)
Chocolate bar turning into liquid chocolate
d)
Fog forming on a mirror
18.
Which two phases changes takes away energy?
a)
Freezing, Melting
b)
Condensation, Evaporation
c)
Freezing, Condensation
d)
Melting, Evaporation
19.
Which two phases changes add energy?
a)
Freezing, Melting
b)
Condensation, Evaporation
c)
Freezing, Condensation
d)
Melting, Evaporation
20.
What happens to particle movement/speed when energy is added to a phase?
a)
Particles slow down
b)
Particles go faster
c)
Particles don't move
d)
Particles stay the same speed
21.
Dry ice is an example of which phase change
a)
melting
b)
freezing
c)
condensation
d)
sublimation
22.
A material can be classified as a liquid if
a)
It has a definite shape and volume
b)
It has a definite shape and variable volume
c)
It has variable shape and a definite volume
d)
Its particles vibrate around a fixed location.
23.
Which of these phase changes does NOT involve changing liquid to a gas?
a)
sublimation
b)
evaporation
c)
vaporization
d)
boiling
24.
What is the freezing point of ice?
a)
0° Celcius
b)
50° Celcius
c)
75° Celcius
d)
100° Celcius
25.
Which of the following statements is NOT true of all different types of matter?
a)
They are made of atoms and molecules
b)
The particles are always in motion
c)
The particles always move at the same speed
d)
They are made of particles that are too small to see
26.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1,
d)
4, 3, 1, 2
27.
Which liquid is the most dense?
a)
oil
b)
water
c)
syrup
d)
plastic bottle
28.
I have two objects with the same volume but different masses. Which object will be more dense?
a)
The object with less weight.
b)
The object with more weight.
c)
The object with more mass.
d)
The object with less mass.
29.
The two types of vaporization are boiling and evaporation.
a)
True
b)
False
30.
Liquids particles are ______________.
a)
Loosely packed
b)
Tightly packed
c)
Far apart
100 %
