2.
When do spring tides occur?
A. During first quarter moon and a third quarter
moon.
B. During full moon
C. During new moon.
D. During a full moon and new moon.
3.
Waves on the surface of the ocean are mostly
caused by what?
A. Wind
B. Gravity
C. Tides
D. Tsunamis
4.
How often do high tides occur in most places?
A. Every 3 hours
B. Every 6 hours
C. Every 9 hours
D. Every 12 hours
5.
What are tides caused by?
A. Wind
B. Waves
C. Gravity from the moon
D. Gravity from the moon and sun
6.
What is a tide with the least difference
between high and low tide called?
A. neap tide
B. spring tide
C. fall tide
D. leap tide
7.
What does salinity measure?
A. The amount of ions in water
B. The amount of dissolved salts in water
C. The amount of fish in water.
D. The amount of undissolved salts in water
8.
What is the most abundant salt in seawater?
A. Sodium chloride
B. Magnesium chloride
C. Calcium chloride
D. Potassium chloride
9.
Which of the following areas in the ocean
would have the lowest salinity?
A. a warm, tropical sea
B. the cold Arctic Ocean
C. a bay at the mouth of a big river
D. deep parts of the Pacific Ocean
10.
In which zone is the most dense ocean water
found?
A. Intertidal Zone
B. Surface Zone
C. Transition Zone
D. Deep Zone
11.
What are deep currents caused by?
A. Fish swimming
B. Wind
C. Differences in density
D. Gravity
12.
What is a deep canyon in the ocean floor
called?
A. A canyon
B. A trench
C. A mid-ocean ridge
D. A rift valley
13.
In which zone is ocean temperature most
affected by weather?
A. Surface zone
B. Transition zone
C. Deep zone
D. Hydrothermal zone
14.
What is the continuous chain of underwater
mountains called?
A. Mid-ocean ridge
B. Volcanic island chain
C. Seamounts
D. Abyssal plain
15.
What is the nearly flat region of the ocean
floor covered with sediment called?
A. Abyssal Plain
B. Continental Shelf
C. Mid-ocean Ridge
D. Trench
16.
What marks the true edge of a continent?
A. Abyssal Plain
B. Continental Shelf
C. Continental Slope
D. Continental Rise
17.
Which zone of the ocean receives enough
sunlight to support the growth of algae?
A. Surface Zone
B. Transition Zone
D. Deep Zone
C. Trench Zone
18.
What is the gently sloping region that extends
from the edge of a continent called?
A. Abyssal Plain
B. Continental Shelf
C. Continental Slope
D. Continental Rise
19.
What surface current affects the climate of
England?
A. East Australian Current
B. Gulf Stream
C. Greenland Current
D. United Kingdom Current
20.
More than 97% of the Earth’s water is found
where?
A. The oceans
B. The atmosphere
C. Lakes
D. Ice/Glaciers
21.
The energy that drives the water cycle comes
from what?
A. Wind
B. Tides
C. Hurricanes
D. Sun
22.
More than two thirds of the Earth’s
freshwater is found in what?
A. Atmosphere
B. Groundwater
C. Icecaps and glaciers
D. Lakes
23.
What is the process where plants release
water into the atmosphere?
A. Accumulation
B. Condensation
C. Evaporation
D. Transpiration
24.
The process by which molecules at the
surface of a liquid gain enough energy to
change into a gas is called what?
A. Condensation
B. Evaporation
C. Precipitation
D. Transpiration
25.
Water that falls to the Earth as snow is called
what?
A. Collection.
B. Condensation
C. Evaporation
D. Precipitation
26.
What is happening to the total amount of
water on the Earth?
A. It is increasing.
B. It is decreasing.
C. It is staying about the same.
D. Freshwater is increasing but saltwater is
decreasing.
27.
What needs to happen for a molecule to leave
the ocean and enter the atmosphere?
A. It needs to gain energy
B. It needs to lose energy
C. It needs to keep the same amount of energy
D. It needs to have an energy party
