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17 questions
Which process is most important to the water cycle?
Flooding
evaporation
erosion
farm irrigation
During the water cycle, when water vapor changes to liquid water, it is called
evaporation
freezing
condensation
boiling
Which two physical changes are essential processes in the water cycle?
oxidation and reduction
evaporation and condensation
mixing and separating
ebbing and flowing
Which of these would MOST LIKELY occur if the rate of evaporation over the ocean were to decrease for an extended length of time?
The sea level would fall dramatically.
Ocean currents would reverse their directions.
The amount of precipitation on land would decrease.
Harmful chemicals would be formed in the atmosphere.
Water on Earth is found naturally as a solid, a liquid, and a gas. Where is MOST of the solid water of Earth?
deep in Earth’s mantle
in Earth’s polar regions
in the outer atmosphere
at the bottom of the ocean
In which stage is cool air causing water to condense?
Stage 1
Stage 2
Stage 3
Stage 4
In the water cycle, energy from the Sun causes water to
condense
evaporate
freeze
sublimate
How does water return to Earth from the atmosphere in the water cycle?
precipitation
runoff
water vapor
transpiration
Groundwater is part of the water cycle because
it is surface water
it collects precipitation and eventually returns it to surface waters
it does not evaporate easily
it becomes precipitation when heated
About what percentage of Earth’s water is found in the oceans?
97%
71%
17%
7%
Suppose you had a special machine to remove water that is naturally in the air. What type of water would the machine collect?
glacial water
salt water
groundwater
freshwater
Which of the following contains the least amount of salt water?
seas
oceans
rivers
polar ice caps
Where is most of Earth’s fresh water?
glaciers
underground
atmosphere
lakes and rivers
What is an aquifer?
a cavern with fresh water
a wetland
the center of an ice sheet
a layer of permeable rock that holds water
Where would you find salt water?
a large lake, like Lake Superior
a sea
an alpine glacier
in coastal rain
From largest to smallest, the amounts of water on Earth are
liquid fresh water, solid fresh water, salt water
salt water, solid fresh water, liquid fresh water
salt water, liquid fresh water, groundwater
groundwater, salt water, solid fresh water
A glacier is
a river of liquid water
a river of ice that moves over land
a solid lake
an ice cap
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