Column 1
Column 2
Column 3
Column 4
Column 5
100
A liquid boils when it turns to ______ at the bottom of the liquid and rises to the top.
vapor
100
When water freezes it ______ energy.
discharges
100
When heat is added to boiling water, the temperature of the boiling water __________ the same.
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remains
100
Evaporation is a cooling process and condensation is a _____________ process.
warming
100
___________ occurs when matter changes from a liquid to a solid. 
freezing
200
It is defined as the amount of water vapor in the air compared with the amount of water vapor that the air can hold at a given temperature. 
relative humidity
200
When matter changes from a liquid to a gas.
evaporation
200
When steam changes to water at 100 degrees Celsius, energy is ________________.
released
200
___________ occurs when matter changes from a gas to a liquid.
condensation
200
When matter goes from a solid to a liquid and then to a gas, energy is ________________.
absorbed
300
Evaporation is a _____ process. 
cooling
300
540 of these are released when 1 gram of steam condenses to water at 100 degrees Celsius.
calories
300
Clouds form when air _______, rises and chills. 
expands
300
As atmospheric pressure increases, the boiling temperature of a liquid ____________.
rises
300
When matter changes from a gas to a liquid and then to a solid, energy is ____________.
released
400
Molecules in a room-temperature glass of water jostle around at a __________ of speeds.
number
400
when boiling water in the mountains, the time needed to reach the boiling point is ____ at sea level.
less than
400
When snow forms, the air becomes warmer because changing from a vapor to a solid ______________ energy.
gives off
400
Steam burns are more damaging than burns caused by boiling water because steam has more energy per _______ than boiling water.
gram
400
Air is __________ with water when it contains as much vapor as it can at a given temperature.
saturated
500
Melting snow _______ the surrounding air.
cools down
500
Morning dew on the grass is a result of slow-moving molecules _________ on the grass. 
condensing
500
On a humid day, water condenses on the outside of a glass of ice water. This phenomenon occurs mainly because of the _______ cooled air.
saturation
500
When snow forms in clouds, the surrounding air _________.
warms
500
The reason pressure cookers cook food faster is that they raise the ______________ point of water. 
boiling