WorksheetsTRMS Oceanography
Total questions: 32
Worksheet time: 19mins
Name
Class
Date
1.
What is the main cause for the formation of surface currents AND waves in the ocean?
a)
The moon's gravitational pull on Earth's waters
b)
The wind blowing across Earth's surface.
c)
Strong earthquakes and underwater landslides
d)
The differences in ocean water's densities
2.
Which ocean borders North and South America, Africa, and Europe?
a)
Atlantic
b)
Indian
c)
Southern
d)
Pacific
3.
What do waves and surface currents have in common?
a)
They both curve clockwise due to Earth's rotation.
b)
They are formed when the wind's energy is transferred to the ocean's surface.
c)
They are created when cold, salty water sinks.
d)
They both influence the climate of coastal regions.
4.
About how many hours pass between each low tide?
a)
24 hours
b)
18 hours
c)
12 hours
d)
6 hours
5.
What factor can decrease the salinity of ocean water?
a)
evaporation from the surface of the ocean
b)
the freezing of ocean water
c)
increased condensation to form clouds
d)
being at the mouth of a river
6.
How does the salinity of the Dead Sea affect its density?
a)
Dead Sea water is more dense because of its high salinity.
b)
Dead Sea water is less dense because of its high salinity.
c)
Dead Sea water is more dense because of its low salinity.
d)
Dead Sea water is less dense because of its low salinity.
7.
Which statement is TRUE about the moon's effect on Earth's water?
a)
Even if the moon disappeared Earth would still have weak tides due to the sun's gravity.
b)
Because the moon is closer its gravitational pull on Earth's water is greater than that of the sun.
c)
The moon and sun's gravitational pulls combine to form spring tides twice a month.
d)
All of these statements are true about the moon's effect on Earth's water.
8.
What causes Earth's surface currents to curve rather than move in straight paths?
a)
Wind blowing across the ocean
b)
Earth's revolution around the sun
c)
Earth's rotation on its axis
d)
The moon's gravitational pull
9.
What type of tide is being shown?
a)
low tide
b)
spring tide
c)
high tide
d)
neap tide
10.
How much time passes between a spring tide and a neap tide?
a)
12 hours
b)
24 hours
c)
2 weeks
d)
7 days
11.
What is the most abundant salt in ocean water?
a)
carbon dioxide
b)
sodium chloride
c)
hydrogen peroxide
d)
calcium carbonate
12.
What is the average salinity of water found in the Atlantic Ocean?
a)
35 parts per thousand
b)
350 parts per thousand
c)
35 parts per million
d)
350 parts per million
13.
If the first high tide of the day occurs at 3:30am, approximately when will the next low tide occur?
a)
3:30 am the next day
b)
3:30 pm
c)
9:30 pm
d)
9:30 am
14.
The streamlike movement of water in the ocean is known as what?
a)
a tide
b)
a wave
c)
a current
d)
a tsunami
15.
What effect do the Gulf Stream and the North Atlantic Drift have on the climate of northwestern Europe?
a)
These warm currents have a warming effect.
b)
These cold currents have a cooling effect.
c)
These warm currents have a cooling effect.
d)
These cold currents have a warming effect.
16.
What is the name of the tide with the least difference between the water level during high and low tides?
a)
high tide
b)
low tide
c)
spring tide
d)
neap tide
17.
What is the amount of dissolved salts in a liquid called?
a)
buoyancy
b)
density
c)
salinity
d)
gravity
18.
What happens to the temperature of ocean water as you descend to the ocean floor?
a)
Temperature does not change.
b)
Temperature increases.
c)
Temperature decreases then increases.
d)
Temperature decreases.
19.
Why can't humans dive beyond 50 meters in the ocean without being in a submersible?
a)
There are too many predatory creatures that deep in the ocean.
b)
The pressure is too great the deeper you go in the ocean.
c)
The temperature gets to high as you get to the ocean floor.
d)
Humans are too buoyant and will float at that depth.
20.
What phases does the moon need to be in for a neap tide to occur?
a)
1st & 3rd quarter
b)
waxing & waning gibbous
c)
new & full moon
d)
waxing & waning crescent
21.
What is the correct order, largest to smallest, of Earth's major oceans?
a)
Indian, Atlantic, Pacific
b)
Atlantic, Pacific, Indian
c)
Pacific, Atlantic, Indian
d)
Pacific, Indian, Atlantic
22.
How is the salinity of ocean water increased?
a)
by evaporation
b)
by freezing
c)
by melting of glaciers
d)
by freezing and evaporation
23.
How are deep currents formed?
a)
From wind blowing across the ocean's surface
b)
From colder, saltier water sinking
c)
From warmer, less salty water floating
d)
From Earth rotating on its axis
24.
What phases does the moon need to be in for a spring tide to occur?
a)
1st & 3rd quarter
b)
waxing & waning gibbous
c)
new & full moon
d)
waxing & waning crescent
25.
Which type of tide is characterized by a large difference between water levels at high & low tide? (HINT: Highest high tide & lowest low tide)
a)
spring tide
b)
high tide
c)
low tide
d)
neap tide
26.
What part of the ocean is the site of new ocean crust being added during sea-floor spreading?
a)
deep ocean trench
b)
abyssal plain
c)
seamount
d)
mid-ocean ridge
27.
Which statement is true about the location and temperature of surface currents?
a)
Warm currents form at the equator and cold currents form at the poles.
b)
Warm currents form at the poles and cold currents form at the equator.
c)
All surface currents form at the equator.
d)
All surface currents form at the poles.
28.
If the first low tide of the day occurs at 5am, when will the next low tide occur?
a)
11am
b)
5pm
c)
11pm
d)
12 am
29.
The next full moon and spring tide will occur on Feb. 10th. When will the following neap tide occur?
a)
Feb. 11th
b)
Feb. 17th
c)
Feb. 24th
d)
March 1st
30.
What is another factor that can decrease the salinity of ocean water?
a)
The freezing of ocean water
b)
The evaporation of ocean water
c)
Precipitation falling into the ocean
d)
Aquifers recharging with runoff.
31.
What creates surface currents in the ocean?
a)
winds blowing across the ocean's surface
b)
Earth rotating on its axis
c)
the gravitational pull of the moon
d)
increased density due to salinity and temperature
32.
Where would you expect to find the highest levels of salinity at the ocean's surface?
a)
at the mouth of the Amazon River
b)
in areas with large amounts of rainfall
c)
at the equator because of higher evaporation
d)
under a melting glacier in the Arctic
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