WorksheetsChange of State
Total questions: 20
Worksheet time: 14mins
What is the change of state that occurs when water at 10o C is heated 50o C ?
ice changes to water
water changes to ice
steam changes to water
water changes to water vapor
An uncovered pot of soup is simmering on Mr. Wright's stove, and there are water droplets on the wall behind it. What sequence can you infer has occurred?
evaporation, then condensation
freezing, then thawing
condensation, then vaporization
Mr. Wright is a mess
Melting is a heat __________ process.
loss
lose
lost
gain
Freezing is a heat ____________ process.
loss
lose
lost
gain
Melting is a process that changes _____________________________.
solid to liquid
liquid to solid
liquid to gas
gas to liquid
Condensation occurs when _____________ water vapour comes into contact with a cooler surface, loses heat and condenses into water droplets.
warm
warmer
cold
colder
Condensation occurs when warmer water vapour comes into contact with a _______________ surface, loses heat and condenses into water droplets.
warm
warmer
cool
cooler
Condensation occurs when warmer water vapour comes into contact with a cooler surface, _____________ heat and condenses into water droplets.
loses
loss
lost
gains
Boiling is a heat __________ process and occurs ________________________.
gain; at the surface of the liquid
gain; throughout the liquid
loss; at the surface of the liquid
loss; throughout the liquid
When Dylan got off from an air-conditioned bus, the lens of his spectacles became blurred. What caused this to happen?
Warmer water vapour from the air-conditioned bus came into contact with a cooler outer surface of his spectacles' lens, lost heat and condensed into water droplets.
Warmer water vapour from the surrounding air came into contact with a cooler outer surface of his spectacles' lens, gained heat and condensed into water droplets.
Cooler water vapour from the air-conditioned bus came into contact with a warmer outer surface of his spectacles' lens, gained heat and condensed into water droplets.
Warmer water vapour from the surrounding air came into contact with a cooler outer surface of his spectacles' lens, lost heat and condensed into water droplets.
Herbie notices that a spill on the kitchen floor was gone the next morning. The best description of what happened to the spill is
It evaporated
It sublimated.
It boiled.
It froze.
The flat part of a graph showing the temperature of a liquid as it cools over a period of time indicates that
a solid is changing to a liquid
a liquid is changing to a solid
a liquid is changing to a gas
a gas is changing to a liquid
Sam kept some water out side in the sun next day he saw nothing in the glass what happen to the water?
It disappeared
It evaporated
Magic
What affect the rate of evaporation
Humidity
Wind
Heat
Temperature
What is the first stage of a water cycle
Condensation
Evaporation
Precipitation
