WorksheetsPhase Changes
Total questions: 34
Worksheet time: 34mins
A phase change is a chemical or physical change?
Physical
Chemical
This is an example of
(Hint: Dry Ice)
Deposition
Sublimation
Freezing
Melting
The temperature at which a liquid evaporates to a gas is called
freezing point
boiling point
melting point
condensation point
The temperature at which a liquid freezes to a solid is called
Freezing Point
Melting Point
Boiling Point
Condensation Point
The temperature at which a solid melts to a liquid is called
Boiling Point
Freezing Point
Condensation Point
Melting Point
The temperature at which a gas condenses to a liquid is called
boiling point
condensation point
melting point
freezing point
Rank the states of matter from slowest to fastest particle speed.
gas, solid, liquid
solid, liquid, gas
gas, liquid solid
solid, gas liquid
As heat is added to the substance does the temperature always increase?
Yes it always increases
No it does not increase during the phase change
It never increases
It always stays the same.
What is happening to the particles in the substance between points D and E?
Melting
Freezing
Vaporizing
Sublimating
Where on the graph are phase changes taking place?
1
2
3
4
5
Which state of matter is shown?
solid
liquid
gas
During a phase change the temperature of a substance __________
Stays constant
Increases
Decreases
Vanishes
the energy that an object has because it is moving
kinetic energy
freedom of movement
refute
scale
When kinetic energy increases, temperature & speed of the molecules _________.
increases
decreases
When kinetic energy decreases, temperature & speed of the molecules _______.
increases
decreases
When you add energy INTO a substance, the molecules move and what are the phase changes that occur?
faster: Solid -> Liquid -> Gas
slower: Gas -> Liquid -> Solid
When you take energy OUT of a substance, the molecules move and what are the phase changes that occur?
faster: Solid -> Liquid -> Gas
slower: Gas -> Liquid -> Solid
