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WorksheetsOceans - 4.7 - Test Review
Total questions: 15
Worksheet time: 8mins
Which location is likely to have the greatest water pressure, the coldest temperatures, and the smallest number of living organisms?
1
2
3
4
Which best describes the part of the ocean called the continental shelf?
A flat underwater valley
A region of mountains in the deep ocean
A shallow area of sediment near the shore
A region with a higher water pressure
Which of these are the deepest parts of the ocean?
continental shelf
continental slope
ocean trench
abyssal plains
The diagram shows a model of the ocean floor. Which number identifies the continental slope?
1
2
3
4
The main difference between ocean water and lake water is that ocean water contains ...
salt
oxygen
algae
plants
Which of these increases as a submarine dives deeper into the ocean?
The number of plants in the water
The freshness of the water
The water temperature
The water pressure
The salinity of the Mediterranean Sea is greater than that of the Atlantic Ocean. This means that, compared to the Atlantic Ocean, the Mediterranean Sea is ....
wider
deeper
saltier
cooler
The most important reason that lakes and oceans have different types of animal life is that oceans have ___________
sandy shores and bottoms
water with more salt
large waves at the edges
a much larger surface area
What do the arrows on the map represent?
size of waves
water density
time between tides
ocean currents
Sailors long ago would catch the current off the coast of Virginia. This current would help them get to ____.
South America
Central America
Europe
Southern Africa
Many species of ocean organisms live in coral reefs. The map shows that most coral reefs are found near the equator. What does the location of coral reefs suggest about coral organisms?
Corals need warm seawater to survive.
Corals mostly live around volcanic islands.
Ocean currents keep corals from migrating.
Most ocean waters are too deep for corals.
Algae in the ocean provide much of the Earth's _.
oxygen
hydrogen
nitrogen
carbon dioxide
Algae and other producers need lots of sunlight. Most ocean algae would be found in the water _.
on the abyssal plain
in the oceanic trench
above the continental shelf
beside the continental slope
Part of a coral reef is shown. A coral reef is _ ?
a rock
an ocean current
an underwater cave
an ecosystem
The ocean floor ...
is always a flat bed of sand
has mountains, plains, and ridges like land surfaces
is covered by the same amount of water everywhere
covers less area than the land
