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WorksheetsOceans Review
Total questions: 76
Worksheet time: 1hrs 5mins
What is an Ocean?
small body of water
large body of water
What % of the world is water?
20%
50%
70%
97%
What type of water is in the Ocean?
regular water
salt water
fresh water
spring water
Dark, but some fish live here
Midnight Zone
Twilight Zone
Abyss
Sunlight Zone
VERY Dark, not much life
Midnight Zone
Twilight Zone
Abyss
Sunlight Zone
The movement of deep, cold, nutrient filled water to the surface of the ocean is..
Ocean Current
Upwelling
Deep Currents
Surface Currents
What affects the density of water?
Salt
Temperature
The seasons of the year
Both A and B
What affects the density of water?
Salt
Temperature
The seasons of the year
Both A and B
Why is upwelling important?
Upwelling regulates ocean temperature
Upwelling provides nutrient rich water that sustains life
Upwelling controls the tides
Upwelling helps sailors to navigate the seas
What are a circular system of currents in the Earth's major oceans?
ocean current
gyre
upwelling
conveyor belt
Ocean currents affect climates around the world. Based on the map, which area MOST likely has a warmer climate than expected?
1
2
3
4
Salinity is
The salt content of a substance
The Pepper content of a substance
The circulation of hot and cold matter
the weather pattern of a region
What heats the Earth's oceans?
People
Boats
a heater
sun
What does the blue line represent in the Thermohaline circulation?
Warm salty water
Warm water
Cold water
Cold salty water
Which of the following types of water would SINK the fastest?
warm and salty
cold and salty
warm and fresh
cold and fresh
________ and _______ affect the ocean's density and cause the Global Conveyor Belt to travel
gravity and the Coriolis Effect
temperature and salinity
wind and climate
temperature and the Coriolis Effect
The Gulf Stream is an example of a _______________
upwelling
surface current
True or False: Surface currents affect coastal climates.
True
False
The salt content of a substance
density
temperature
convection
salinity
The circulation of hot and cold fluids (liquids and gases)
convection
radiation
density
temperature
The Earth's oceans are generally warmer near the equator and cooler near the poles. Currents in the water near the surface circulate the water. Some of these currents are shown in the image below. Warm currents are shown in red. Cool currents are shown in blue.
Which of the following best describes what the pictured currents do?
carry warm water away from the poles
carry cool water toward the poles
carry warm water toward the equator
carry warm water away from the equator
Warm air and water both tend to rise while cooler air and water sink. When different parts of the oceans are heated unevenly, this causes the water to
mix together in the water cycle.
move in convection currents.
stay in the same place.
form a tsunami.
Water is cooler near the poles and warmer near the equator. Movement of cooler and warmer water from these regions moderates the global climate.
Which of the following describes the movement of water between the poles and the equator?
ocean currents
gravity
evaporation
tides
A process known as upwelling often occurs along ocean coasts. In this process, warm water at the surface is driven out to sea by blowing winds. As the warm water moves out to sea, what most likely happens to the cold water beneath it?
It condenses into ice.
It sinks closer to the ocean floor.
It rises to the surface to replace the warm water.
It is driven out to sea by the warm water.
A student puts water in a long glass tank to make a model of ocean currents. He heats the left side of the tank and cools the right side. This heating and cooling produces a current of water in the tank.
Which diagram correctly shows the flow of the water?
The currents of the Earth's oceans are caused by
global winds and differences in temperature and salinity.
marine organisms and volcanic eruptions.
waves and earthquakes along tectonic plate boundaries.
disturbances by submarines and large ships.
A student wants to make a model of ocean currents. She divides a long glass tank in half, as shown below. She puts fresh water in one side and salt water in the other side.
Next, the student removes the barrier between the two sides.
Which diagram correctly shows the flow of the water when the barrier is removed?
Which is true?
The ocean has no effect on the temperature on the land.
All ocean water is the same temperature.
Ocean water does not move between locations.
Ocean currents affect temperatures on land.
Water in ocean currents can descend when it becomes colder and saltier than the surrounding water. If water descends to the bottom of the ocean, then other water must rise to the top. What causes water to rise to the top of the ocean?
It becomes less dense than the surrounding water.
It is forced upward by underwater mountain ranges.
It is brought upward by organisms that live in the ocean.
It cools down and dissolves additional salt.
The ocean's currents are driven by differences in temperature and density. Different masses of water are warmer and less dense than other masses. This water tends to move along the ocean's surface in surface currents. Colder masses and more dense masses of water tend to sink and move along the ocean floor in deep-water currents.
As shown in the diagram, at several locations warm, less dense water cools, becomes more dense and falls to the ocean floor. At other locations, cold, dense water warms, becomes less dense and rises back to the surface.
This cycling of ocean water along currents is an example of _______.
conduction
absorption
convection
radiation
The image below shows a system of ocean currents that are sometimes referred to as the global ocean conveyor belt.
These currents are a form of convection in the ocean. What is one effect of this convection?
Warm water on the ocean's surface stays on the surface.
The ocean constantly becomes colder as warm water is cooled.
Water from the ocean cools the atmosphere.
Water continually circulates throughout Earth's oceans.
The image shows part of an ocean current in the Atlantic Ocean. The blue line represents the motion of deep, cool water. The red line represents the motion of warm surface water.
One factor that affects ocean currents is the concentration of salt in the water. How can the saltiness of the water cause the surface water to sink, as shown above?
When ice melts, it makes the surface water more salty.
When cold water rises to the surface, it loses salt.
When some of the surface water freezes, the remaining water becomes saltier.
When the surface water is heated by the Sun, it dissolves more salt.
The image shows part of an ocean current in the Pacific Ocean. The blue line represents the motion of deep, cool water. The red line represents the motion of warm surface water.
What most likely causes the current to behave as shown in the image?
When the water is heated, it becomes less dense and rises.
When the surface water is heated by the Sun, it becomes denser.
When the deep water is cooled, it loses energy and becomes denser.
When the cold water evaporates, less dense water rises to take its place.
Cold water near the ocean floor often flows in deep-water currents. The cold water flows toward the deepest regions of the ocean because
the water above it contains less algae.
it is more dense than the warm water above it.
it is warmer than the cold water above it.
the water above it is frozen in icebergs.
The ocean contains currents as a result of uneven heating and uneven salt concentration. These currents exist both on the ocean surface and deep in the ocean.
Which diagram best represents the currents in the ocean?
Currents caused by differences in water density are most often the result of
differences in salinity and wind.
uniform temperature and salinity.
uniform salinity and wind.
differences in temperature and salinity.
Where would I find the most dense ocean water?
At the surface
In the middle
At the bottom
Lake Michigan
What part of the wave is B?
Amplitude
Wavelength
Trough
Crest
What part of the wave is C?
Amplitude
Crest
Wavelength
Trough
What part of the wave is A?
Crest
Trough
Wavelength
Amplitude
What part of the wave is D?
Trough
Crest
Wavelength
Amplitude
____________ are the daily rise and fall of Earth's waters on its coastlines caused by the gravitational interaction of Earth, the Moon, and the Sun.
Tides
Hot spots
Currents
Densities
_________________ is the largest tidal range and occurs when the Earth, the Moon, and the Sun form a straight line.
Spring Tide
Neap Tide
_________________ is the lowest tidal range and occurs when Earth, and the Moon, and the Sun form a right angle.
Spring Tide
Neap Tide
_______________ is the number of waves that pass a point in a certain amount of time.
Frequency
Amplitude
Crest
Wave
______________ is the highest point of a wave.
Crest
Trough
Amplitude
______________ is the lowest point of a wave.
Trough
Crest
Wavelength
What letter symbolizes a continental slope
A
E
F
H
What letter symbolizes a continental shelf?
A
C
G
F
What letter symbolizes a mid-ocean ridge?
H
G
E
B
What letter symbolizes an abyssal plain?
H
A
C
F
What letter symbolizes a trench?
G
D
A
H
What zone of the ocean is the warmest?
surface zone
deep zone
thermocline
littoral zone
Which ocean is the largest?
Pacific
Atlantic
Indian
Arctic
Oceans are divided into ___________ based on physical characteristics.
layers
zones
groups
areas
This zone is an area of shallow seawater that receives the most sunlight.
Middle Zone
Deep Zone
Surface Zone
Abyss
This zone receives very little sunlight and of it, only the blue-green wavelengths.
Middle Zone
Deep Zone
Surface Zone
Top Zone
A process where organisms produce light using chemicals.
Bioluminescence
Photosynthesis
Metamorphosis
Biogenetics
