WorksheetsChanges of States of Matter
Total questions: 25
Worksheet time: 25mins
Look at this picture carefully.
The picture shows the changing states of matter in the term of ...
melting
sublimation
evaporation
freezing
Explain the changing states in this picture!
Which of these options described best about the particles in solid?
Particles are not packed as closely together.
Particles are packed very closely together.
Particles fill the container shape.
Particles are moving around one another.
What is the main indicator of the changing states to be happened?
temperature
shape
size
volume
Label the change of states.
condensation
sublimation
melting
vaporization
freezing
What is the freezing point of water?
0 0C
100 0C
25 0C
80 0C
When evaporation is happening, matter in a liquid state changes into the gaseous state by adding the ...
cooling point
heat temperature
volume water
shape of container
Look at this picture carefully and describe each of particles in solid, liquid and gaseous state!
What is the boiling point of water?
0 0C
100 0C
25 0C
80 0C
When thermal energy is increased in a solid, what change in state is happening?
Melting
Evaporation
Freezing
Condensation
When thermal energy is decreased in a gas, what change in state is happening?
Melting
Freezing
Evaporation
Condensation
When thermal energy is increased in a liquid and evaporation occurs, what state of matter does the liquid change into?
Solid
Gas
When a substance changes from a solid to a liquid, this is called...
Melting
Evaporation
Freezing
Condensation
When a substance changes from a gas to a liquid, this is called...
Melting
Evaporation
Condensation
Freezing
Dry ice is an example of what phase change.
freezing
melting
vaporization/boiling
sublimation
Water vapor (a gas) forming frost (a solid) on the windshield of a car is an example of what phase change?
melting
sublimation
condensation
deposition
When thermal energy is decreased in a liquid, what change in state is happening?
Melting
Freezing
Condensation
Evaporation
When thermal energy is increased in a liquid, what change in state is happening?
Melting
Evaporation
Condensation
Freezing
When a substance changes from a liquid to a solid, this is called...
Melting
Evaporation
Condensation
Freezing
Which state of matter has the lowest kinetic energy (atoms move the slowest)?
solid
liquid
gas
Which state of matter has a definite volume & an indefinite shape?
solid
liquid
gas
What is the process called when a solid turns directly into a gas without passing through the liquid state?
Melting
Sublimation
Condensation
Freezing
Which of the following best describes the particles in a gas?
Particles are tightly packed and vibrate in place.
Particles are closely packed but can slide past each other.
Particles are far apart and move freely.
Particles are arranged in a fixed pattern.
During which process does a liquid absorb energy and change into a gas?
Freezing
Condensation
Evaporation
Sublimation
What happens to the temperature of a substance during a phase change?
It increases.
It decreases.
It remains constant.
It fluctuates.
