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WorksheetsPhase Changes
Total questions: 123
Worksheet time: 2hrs 3mins
What phase change is happening to the picture?
freezing
melting
evaporation
condensation
It is a change from solid to gas.
condensation
evaporation
sublimation
melting
When heat is added to water, it turns into __________.
solid
liquid
water vapor
precipitate
What phase change is evident in the picture?
melting
freezing
evaporation
condensation
It is a phase change from liquid to gas.
melting
freezing
evaporation
condensation
What phase change must take place in order to make ice cubes?
melting
freezing
evaporation
condensation
The tiny water vapor in the air accumulates together as clouds. What phase change took place during the process?
melting
freezing
evaporation
condensation
What phase change is evident in the picture?
evaporation
condensation
melting
freezing
When dry ice gets smaller, the ice changes from _________.
solid to liquid
liquid to gas
gas to liquid
solid to gas
When clothes dry, water changes from ____________.
solid to liquid
liquid to gas
liquid to solid
solid to gas
Car air fresheners do not evaporate directly in the air.
TRUE
FALSE
Gulaman jelly changes from solid to liquid when stored inside the refrigerator for about an hour.
True
False
Melting is a change from solid to liquid when the temperature is ___________.
increased
lowered
constant
The following are examples of materials that undergo sublimation except for:
mothballs
dry ice
air freshener
soap
Which is not true about dry ice?
It is solidified carbon dioxide.
It is a cooking agent commonly used for packing frozen goods.
It becomes water when it melts.
It evaporates directly into the air.
It is a phase change from gas to liquid.
melting
freezing
condensation
evaporation
It is a phase change from solid to liquid.
melting
freezing
condensation
evaporation
It is a phase change from liquid to solid.
melting
freezing
condensation
evaporation
What is happening to the butter in the picture?
It changes from solid to gas.
It changes from liquid to solid.
It changes from liquid to gas.
It changes from solid to liquid.
What is the reason for the droplets of water on plants early in the morning?
The water vapor in the air condenses during the night.
The water content of the plant evaporates.
The plant changes from solid to liquid.
The water in the plants changes to solid.
A change from solid to liquid.
freezing
evaporation
melting
A change from LIQUID to GAS.
melting
evaporation
freezing
Drying of clothes and boiling water are examples of______.
melting
freezing
evaporation
condensation
When the ice cream or chocolate melts, the change is said to be from ___________.
liquid to solid
solid to liquid
gas to liquid
liquid to gas
PHASE CHANGES are ALSO examples of PHYSICAL CHANGE.
TRUE
FALSE
In PHYSICAL CHANGE, a new material or new substance is being formed.
TRUE
FALSE
You have decided to start sealing all your letters with glittery wax because you are so "cool". Which answer BEST explains what you must do to make the SOLID wax a LIQUID?
In order to make the SOLID wax a LIQUID you must ADD HEAT ENERGY by putting the wax in the FREEZER.
In order to make the SOLID wax a LIQUID you must ADD HEAT ENERGY by putting the wax over a FLAME.
In order to make the SOLID wax a LIQUID you must REMOVE HEAT ENERGY by putting the wax in an OVEN.
You have dropped your popsicle and are watching it become a LIQUID. Which answer BEST explains what PHASE CHANGE has occurred AND how the molecule MOVEMENT has changed?
The PHASE CHANGE that has occurred is CONDENSATION and the molecule MOVEMENT has become FASTER.
The PHASE CHANGE that has occurred is EVAPORATION and the molecule MOVEMENT has become SLOWER.
The PHASE CHANGE that has occurred is MELTNG and the molecule MOVEMENT has become FASTER.
Which state of matter is shown?
solid
liquid
gas
What phase change is happening?
freezing
condensation
melting
sublimation
Dry ice is frozen carbon dioxide. What phase change is happening to the dry ice?
melting
evaporation
condensation
sublimation
What phase change happens when dew forms on leaves?
freezing
melting
deposition
condensation
Which does not happen when ice melts?
Heat is absorbed by the ice.
Heat is released by the ice.
The molecules of ice move farther apart.
The molecules of ice move closer to each other.
Which of the following happen when water is boiled?
Heat is absorbed by water.
Heat is released by water.
Molecules of water move farther apart.
Molecules of water move closer to each other.
Give an example of solid to liquid phase change.
Give an example of liquid to gas phase change.
What is the phase change of a solid to a liquid?
freezing
melting
boiling
condensation
A change of state from a liquid to a solid is called _________.
melting
freezing
evaporation
condensation
What is it called when a solid turns directly into a gas?
sublimation
condensation
evaporation
freezing
The phase change from water vapor to liquid water is known as ______________.
evaporation
condensation
sublimation
freezing
When steam from water rises up and hits the side of the cup and makes tiny droplets of water this is called _______.
condensation
melting
evaporation
sublimation
When solid dry ice becomes a gas this is called ________.
sublimation
condensation
evaporation
melting
If you increase the temperature of a solid it will change into a liquid, this phase change is called ___________.
sublimation
freezing
melting
evaporation
The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?
sublimation
condensation
evaporation
melting
An ice cube is placed in a pan. The pan is placed over an open flame. Which change will MOST likely happen over time?
The ice changes to a gas then a liquid.
The ice changes to a gas and then back to a solid.
The ice changes to a liquid then to a gas.
The ice changes to a liquid and back to a solid.
What is an example of sublimation?
Ice cream melting
Dry ice
5. What is it called when a solid turns directly into a gas?
sublimation
condensation
liquid
5. What is it called when a solid turns directly into a gas?
sublimation
condensation
liquid
Suppose you pour a glass of ice water and set it on the kitchen table. After a few minutes, the outside of the glass will be covered with drops of water. Why did this happen?
Oxygen in the air cooled and condensed onto the cold glass.
Water vapor in the air cooled and condensed onto the cold glass.
Water vapor in the air cooled and evaporated onto the cold glass.
Water seeped through pores in the glass.
You have dropped your popsicle and are watching it become a LIQUID. Which answer BEST explains what PHASE CHANGE has occurred AND how the molecule MOVEMENT has changed?
The PHASE CHANGE that has occurred is CONDENSATION and the molecule MOVEMENT has become FASTER.
The PHASE CHANGE that has occurred is EVAPORATION and the molecule MOVEMENT has become SLOWER.
The PHASE CHANGE that has occurred is MELTNG and the molecule MOVEMENT has become FASTER.
What is an example of evaporation?
water boiling
water turning into ice
chocolate bar turning into liquid chocolate
fog forming on a mirror
The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?
sublimation
condensation
evaporation
melting
An ice cube is placed in a pan. The pan is placed over an open flame. Which change will MOST likely happen over time?
The ice changes to a gas then a liquid.
The ice changes to a gas and then back to a solid.
The ice changes to a liquid then to a gas.
The ice changes to a liquid and back to a solid.
What is an example of sublimation?
ice cream melting
dry ice
It is the hotness or coldness of matter that can affect the force of attraction between particles that made up matter.
Hotness
Coldness
Temperature
The water boiling point is at 100 degrees centigrade or 212 degrees Fahrenheit.
Agree
Disagree
Maybe
It is the process of changing liquid into a gas at a constant temperature or just below its boiling point.
CONDENSATION
EVAPORATION
SUBLIMATION
Too much evaporation can cause dehydration and withering of plants that can be led to a drought.
Agree
Disagree
Maybe
It is the process of changing gas into a liquid.
EVAPORATION
SOLIDIFICATION
CONDENSATION
Morning Dew on the Grass is the best example of condensation.
Agree
Disagree
Maybe
It is the process of changing a solid into a liquid. Phase change that happens at constant
temperature.
FREEZING
MELTING
SOLIDIFICATION
The process of changing liquid into solid-like lava hardening into solid rocks.
Sublimation
Solidification
Evaporation
The process of changing solid matter to gas without passing the liquid state.
Sublimation
Solidification
Evaporation
It is the water boiling point.
0 °C or 32 °F
-100 degrees centigrade
100 degrees centigrade or 212 degrees Fahrenheit.
Rain Falling Down
CONDENSATION
EVAPORATION
FREEZING
Butter melting.
MELTING
FREEZING
SOLIDIFICATION
Ironing of clothes.
EVAPORATION
CONDENSATION
SUBLIMATION
Drying of clothes under the heat of the sun.
Evaporation
Condensation
Sublimation
Dry ice belong to ________
Sublimation
Condensation
Evaporation
It requires an increase in the temperature of the material for the phase change to occur.
Evaporation and Melting
Condensation and Freezing
Condensation causes the formation of rain clouds and finally the rain needs by the farmer for their crops.
POSITIVE EFFECTS OF PHASE CHANGE
NEGATIVE EFFECTS OF PHASE CHANGE
All liquids become solid at a very low temperature.
Agree
Disagree
Maybe
Freezing helps store our foods without spoiling.
POSITIVE EFFECTS OF PHASE CHANGE
NEGATIVE EFFECTS OF PHASE CHANGE
Too much condensation followed by precipitation can cause rain. Too much rain can cause floods.
POSITIVE EFFECTS OF PHASE CHANGE
NEGATIVE EFFECTS OF PHASE CHANGE
Which of the following undergoes sublimation?
ice
butter
moth balls
ice cream
Adding heat causes the atoms to _____.
Cooling causes the atoms to _____.
spread apart
move closer together
get larger
get smaller
The water droplets on this glass of water is showing what phase change?
The water leaving the ocean in the water cycle is representing this phase change.
What temperature does water change to a solid?
-100 degrees
0 degrees
10 degrees
100 degrees
What temperature does water change to a gas?
-100 degrees
0 degrees
10 degrees
100 degrees
What do we call it when a liquid changes to a solid? (For example, water changing to ice)
Freezing
Melting
Boiling
What do we call it when a liquid changes to a gas? (For example, water changing to water vapour)
Freezing
Melting
Boiling
What do we call it when a solid changes to a liquid? (For example, ice changing to water)
Freezing
Melting
Boiling
Some examples of precipitation are snow, sleet, hail and (a) ? (Hint - look at the picture!)
The river changes back to the clouds. This is the process of water changing to a gas. What is it called? (Hint - look at the picture!)
Eviction
Evaluation
Evolution
Evaporation
The cloud changes back to the rain. This is the process of gas changing to a water. What is it called? (Hint - look at the picture!)
Constitution
Condensation
Conduction
Competition
The moth balls inside my cabinet disappeared without a trace..
(a)
The chocolate in my palm turned to liquid after some time.
(a)
The juice solidify after I placed it in the fridge.
(a)
Frost formed on the surface of a leaf because of the cold weather.
(a)
The pond dries out during summer time.
(a)
Liquid water to ice
Melting
Evaporation
Sublimation
Freezing
Chemical Change
A shiny nail to rusted nail
Melting
Evaporation
Sublimation
Freezing
Chemical Change
Dry ice to water vapor
Melting
Evaporation
Sublimation
Freezing
Chemical Change
Boiling water to vapor
Melting
Evaporation
Sublimation
Freezing
Chemical Change
Decaying body of an organism
Melting
Evaporation
Sublimation
Freezing
Chemical Change
Drying of wet clothes
Melting
Evaporation
Sublimation
Freezing
Chemical Change
Ripening of fruits
Melting
Evaporation
Sublimation
Freezing
Chemical Change
Disappearance of mothballs in a closet
Melting
Evaporation
Sublimation
Freezing
Chemical Change
Water vapor to liquid
Melting
Evaporation
Sublimation
Freezing
Condensation
Snow found on the ground
Melting
Evaporation
Sublimation
Freezing
Condensation
