WorksheetsOcean and Currents Review
Total questions: 55
Worksheet time: 29mins
The largest of Earth's oceans is
Indian
Atlantic
Pacific
Southern
Arctic
_______% of the planet is covered by oceans
97%
70%
2%
100%
The two most abundant elements that make up water are?
Chlorine
Sodium
Hydrogen
Oxygen
Magnesium
The ocean helps distribute ___________ around the globe.
cold
heat
ice
ships
A ____________ is a continuous flow of water in a particular direction.
current
upswell
downswell
wave
Currents are created mainly by
surface winds
heat
boats
whales
__________ water is transported from the equator towards the poles
warm
cold
__________ water is transported from the poles towards the equator.
warm
cold
Ocean currents help to regulate global climate even if an area is hundreds of miles from the coast.
True
False
Tralse
If we did not have ocean currents, regional temperatures near the poles would be very
hot
frigid
mild
windy
If we did not have ocean currents, temperatures near the equator would be very
hot
frigid
mild
there would be no change
The Gulf Stream is a powerful, _________, swift ocean current in the Atlantic
cold
warm
weak
blue
The Coriolis Effect is caused by the Earth __________
being in space
rotating on its axis
gravitational pull
underwater volcanoes
Circulating air is deflected toward the _______ in the Northern Hemisphere
left
right
up
down
Circulating air is deflected toward the __________ in the Southern Hemisphere.
left
right
up
down
The Gulf Stream originates in the
Gulf of Mexico
Pacific Ocean
Indian Ocean
Arctic Ocean
Europe has ____________ temperatures because of the Gulf Stream
colder
windier
milder
snowier
The amount of dissolved salt in the water is called
mineral water
H20
Salinity
Soda
Average ocean salinity is _________ grams of salt for every 1000 grams of seawater
5
35
75
100
Average river water has a salinity of _________ ppt.
0
.5
35
50
___________ is affected by salinity
blueness
swimming
density
salinity
Cooler, saltier water is ___________ dense.
less
more
not at all
Warmer, less saltier water is ___________ dense.
more
less
not at all
The Great Salt Lake (in Utah) has very high salinity. This makes it easy to ___________.
clean
dive
float
catch fish
Water with colder temperatures is
more dense
less dense
not dense
Water with warmer temperatures is
more dense
less dense
not dense
What type of currents move warm water towards the surface and cold water deeper into the ocean?
Coriolis
Gulf Stream
Convection
Waves
Tides are caused by gravitational attraction of the
moon
sun
mars
pluto
Because of Earths rotation, ___________ happen twice a day.
tides
hurricanes
upswells
currents
Oceanic crust is different from continental crust in these two ways
older
younger
thicker
thinner
Magma rises, _________, and solidifies forming new igneous rock.
warms
cools
deep channels cut through the continental shelf
shelf
abyssal plain
trench
submarine canyons
underwater plain usually lying between the continental rise and mid-ocean ridge - covers more than 50% of the Earth's surface.
submarine canyons
abyssal plain
trench
sea mounts
long, narrow depressions on the seafloor formed when plates collide.
submarine canyons
abyssal plain
trench
mariana
The Mariana Trench is the deepest part of the ocean, almost ____ miles deep.
7
20
30
100
sea mounts that break the surface
submarine canyons
abyssal plain
sea mounts
volcanic island
Which of the following decreases as you move to the bottom of the ocean.
Darkness
Temperature
Salinity
Pressure
Name Continent A!
North America
Africa
United States
Asia
Name Continent B!
South America
Europe
Mexico
Africa
Name Continent C!
Antarctica
Europe
Asia
Africa
Name Continent D!
Asia
North America
Europe
Africa
Continent E is ________.
North America
Africa
Asia
South America
Continent G is ________.
Asia
Antarctica
Arctic
Australia
Name Ocean #1!
Indian
Pacific
Atlantic
Gulf of Mexico
North America
Antarctica
Australia
Asia
