Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Which two physical changes are essential processes in the water cycle?
a. | oxidation and reduction | c. | evaporation and condensation
| b. | ebbing and flowing | d. | mixing and separating |
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2.
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The clouds in the sky are
a. | water vapor | c. | evaporated water | b. | up in the stratosphere | d. | water droplets |
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3.
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What is evaporation?
a. | the process of precipitation becoming groundwater | c. | The process of liquid water
becoming water vapor | b. | the process that condenses water vapor into
clouds |
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4.
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What is the water cycle powered by?
a. | The Sun | c. | the Earth’s rotation | b. | The
wind |
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5.
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If you breathe on a mirror, part of the mirror clouds up. What are you
actually seeing when you see the mirror cloud up?
a. | oxygen that you are breathing out from your lungs | b. | cooled nitrogen in
the air around you | c. | water droplets that formed from cooled water
vapor in your breath | d. | carbon dioxide that you are breathing out from
your lungs |
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6.
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The atmosphere
a. | is about 20 miles thick | c. | has four layers and weather happens
in the top layer | b. | has different layers and weather happens in the bottom layer | d. | is one solid layer of gases around the
Earth |
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7.
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The amount of water on the earth
a. | stays the same | b. | changes from year to year because of the
weather | c. | is never the same because we keep using it | d. | is always increasing
because of rain |
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8.
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In the morning, Mary noticed there was dew on the grass. In the afternoon, the
grass was dry. What most likely happened to the water?
a. | It went into the ground. | c. | It no longer
exists | b. | It formed clouds. | d. | It went into the air. |
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9.
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Only fresh water moves through the water cycle because
a. | salt water has a separate cycle | c. | salt water is too heavy to
evaporate | b. | the salt is left behind when water evaporates | d. | salt water only rains back into the
ocean |
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10.
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When precipitation infiltrates into the ground, it becomes what?
a. | a spring | c. | runoff | b. | groundwater |
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11.
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when rainwater contibutes or adds to the flow of bodies like rivers and streams,
what is it called?
a. | runoff | c. | evapotranspiration | b. | irrigation |
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12.
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Oceans, the atmosphere, and groundwater are all __________ in the water
cycle.
a. | nodes | c. | phases | b. | reservoirs |
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13.
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What causes the outside of the windshield of a car to get icy on a cold autumn
night when there is no rain?
a. | Water that is already on the glass freezes. | b. | Moisture comes from
inside the car and freezes. | c. | Water vapor from the air freezes on the glass.
| d. | Hydrogen and oxygen in the air combine and form water, and it
freezes |
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14.
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What is the sum total of all water on Earth and in its atmosphere?
a. | hydrosphere | c. | oceanography | b. | biosphere |
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15.
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Precipitation type is caused by
a. | the latitude of the land | c. | the temperature of the
atmosphere | b. | the size of the clouds | d. | the height up in the atmosphere |
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16.
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When was there more water on Earth?
a. | today, because we conserve it | c. | it has always had the same
amount | b. | one billion years ago |
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17.
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Which process is most important to the water cycle?
a. | erosion | c. | flooding | b. | evaporation | d. | farm irrigation |
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18.
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Which reservoir in the water cycle contains the most water?
a. | the oceans | c. | the ice caps | b. | groundwater |
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19.
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The salts in the sea come from
a. | organisms that live in the sea. | c. | acid rain. | b. | particles falling
from space. | d. | weathering and
erosion of rocks. |
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20.
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What are rain, snow, sleet, and hail called in the water cycle?
a. | hydration | c. | evapotranspiration | b. | precipitation |
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21.
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How long can a drop of groundwater stay in the ground?
a. | thousands of years | c. | anywhere from days to thousands of years | b. | days |
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22.
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The water that we drink is
a. | the same water that the dinosaurs drank | c. | being constantly remade in the
aquifers | b. | formed by melting glaciers | d. | new water created in our atmosphere |
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23.
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For frost to be on the grass in the morning, the water vapor in the air
must
a. | evaporate and freeze. | c. | boil and condense. | b. | condense and freeze. | d. | boil and
evaporate. |
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24.
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During the water cycle, when water vapor changes to liquid water, it is
called
a. | condensation. | c. | freezing. | b. | boiling. | d. | evaporation. |
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25.
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Dew is formed by
a. | frost melting just before sunrise. | b. | transpiration performed by
plants. | c. | the condensation of water vapor. | d. | groundwater being pulled to Earth's
surface. |
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