by Mr. Reece
Gravity 1. the force that pulls fresh water
_________
toward the ocean
Currents 2. streams of water moving like rivers
_________
through the ocean
Waves 3. the up-and-down movements on
_________
the surface of the ocean
Wind 4. the cause of most waves and
_________
surface currents
Tides 5. regular changes in the water level
_________
of the ocean
Precipitation
Condensation
Evaporation
Ground Water
Surface Water
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False 1. Only half of the earth is covered
_______
by water.
_______
True 2. Water can be either fresh water of
salt water.
_______ 3. Fresh water carries nutrients and
minerals to the ocean.
True
_______ 4. Germs are tiny plants and
animals that live on or near the
False
surface of the ocean.
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
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True 5. Plankton are a source of food for
_______
many ocean creatures
_______
False 6. There are no animals in the parts of
the ocean that do not have any
sunlight.
_______ 7. The ocean floor has mountains,
valleys, and plains.
True
_______ 8. Surface currents can affect the
climate of land that they are near.
True
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The path water takes as it travels between the
the water cycle
earth and the air is called ________________.
The gravitational pull of the sun and the
tides
moon on the ocean cause __________.
Underwater earthquakes, volcanoes, and
waves
landslides sometimes cause __________.
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

The largest and deepest ocean is the
Pacific Ocean
______________.
The smallest and shallowest ocean is the
Arctic Ocean
______________.
Temperature changes and the amount of salt
in the water control the
deep ocean currents
_____________________.
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Why do tides happen in different places on
the earth?
The earth is rotating as the
moon pulls on the earth
Name two ways wind determines the size of
waves.
wind speed
by the distance
the wind blows
how long the
wind blows