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Chapter 15 - Earth's Oceans

Total questions: 77

Worksheet time: 47mins

Name
Class
Date
1.
The diagram shows a boat using sonar to gather information in the ocean. What is most likely being measured with this technology?
a)
ocean depth
b)
ocean temperature
c)
pH level
d)
turbidity level
2.
Which statement best describes how nutrients move in the ocean as a result of upwelling?
a)
Nutrients move from estuaries into the intertidal zone.
b)
Nutrients move from warm, shallow areas to deep, colder areas.
c)
Nutrients move from the neritic zone to the intertidal zone.
d)
Nutrients move from deep, colder areas to warm, shallow areas.
3.
Which tool would most likely  be used by scientists to explore a hydrothermal vent at the Mid-Atlantic Ridge?
a)
buoy
b)
remote operated vehicle
c)
satellite imagery
d)
sonar
4.
About how much of the Earth's surface is covered by global oceans?
a)
70 percent
b)
20 percent
c)
90 percent
d)
15 percent
5.
The ocean floor is as diverse as the surface of the continents.
a)
True
b)
False
6.
The measurement of the ocean depths and the charting of the shape or topography of the ocean floor is called _________________.
a)
oceanography
b)
geography
c)
Bathymetry
7.
Sonar stands for _____________.
a)
sound navigation and ranging
b)
sound mapping
c)
ranging and sound navigation
8.
What is a small underwater craft used for deep sea research called?
a)
sonar
b)
a satellite 
c)
a submersible
9.
What are the names of the ocean basins?
a)
Pacific, Atlantic and Indian
b)
Pacific, Arctic and Antartic
c)
Pacific, Atlantic, Indian and Arctic
d)
Pacific and Atlantic
10.
Which ocean basin is the smallest?
a)
Indian Ocean
b)
Atlantic Ocean
c)
Arctic Ocean
11.
Salinity is a word that describes how salty something is.  When we talk about the salinity of the ocean water we are talking about the parts per thousand of salt dissolved in ocean water.  Our ocean is about 35 parts per thousand salt.  What word means the amount of salt dissolved in something?
a)
saltiness
b)
purity
c)
salinity
12.
There are many sources of salinity in our oceans.  Volcanoes are one source.  When a volcano erupts it spits out gases, including chlorine.  Why are volcanoes a source of ocean salinity?
a)
volcanoes spit out gases when they erupt
b)
volcanic lava is very salty
c)
underwater volcanoes release very little magma
d)
volcanoes are not
13.

First ship to use sophisticated measurements to study the ocean.

a)

Alvin

b)

Challenger

14.

Study of the earth's oceans?

a)

Oceanography

b)

Meteorology

c)

Geology

d)

Astronomy

15.

One possible source of water on the planet earth is...

a)

hurricanes.

b)

earthquakes.

c)

comet impacts.

d)

violent storms.

16.

The oceans contain about % of earth's water.

a)

77

b)

87

c)

97

d)

67

17.

About 3% of earth's water is located in the of Greenland, and Antarctica.

a)

frozen ice caps

b)

forests

c)

freshwater lakes

18.

Global sea level is decreasing by about 3mm per year.

a)

True

b)

False

19.

What is the average depth of the ocean?

a)

1800m

b)

2800m

c)

3800m

20.

The northern hemisphere is covered by vast amounts of ocean. There is more ocean in the Northern Hemisphere than in the Southern Hemisphere.

a)

True

b)

False

21.

The three major oceans are the Atlantic, Pacific, and Arctic Oceans.

a)

True

b)

False

22.

The Pacific Ocean is the earth's largest ocean.

a)

True

b)

False

23.

About what % of seawater is dissolved salts?

a)

96.5

b)

9.65

c)

3.5

d)

35

24.

Which of the following salts is most abundant in the ocean?

a)

sodium chloride

b)

potassium chloride

c)

magnesium sulfate

d)

calcium carbonate

25.

What is salinity?

a)

the amount of dissolved solids in seawater.

b)

the amount of dissolved gas in ocean water.

c)

the amount of water in the oceans.

d)

another name for sea shells.

26.

In addition to salts, which of these substances is dissolved into the oceans?

a)

sugar

b)

nutrients

c)

shells

d)

seaweed

27.

Which of the following would cause the surface of the ocean to have a higher salt concentration?

a)

a river flowing into the ocean.

b)

the melting of sea ice.

c)

high rates of evaporation.

d)

low rates of photosynthesis

28.

What process removes salt from the ocean?

a)

ultraviolet radiation

b)

weathering of feldspar

c)

incorporation of ions in marine organisms life processes

d)

consumption of sediment on the ocean floor

29.

Cold Salty water sinks in warm fresh water.

a)

True

b)

False

30.
What causes surface waves?
a)
underwater volcanoes
b)
earthquakes
c)
wind
d)
landslides
31.
Which of the following is an underwater wave?
a)
tidal wave
b)
surface wave
c)
tsunami
d)
ocean wave
32.
What is represented at point 1?
a)
wave height
b)
wavelength
c)
crest
d)
trough
33.
What is represented at point 2?
a)
wave height
b)
wavelength
c)
crest
d)
trough
34.
What is represented at point 3?
a)
wave height
b)
wavelength
c)
crest
d)
trough
35.
What is represented at point 4?
a)
wave height
b)
wavelength
c)
crest
d)
trough
36.
Many people believe that ocean waves move water.  However, ocean waves really transfer ______.
a)
wind
b)
sand
c)
energy
d)
pressure
37.
Which direction do ocean waves move?
a)
back and forth
b)
up and down
c)
in a side-to-side motion
d)
in a circular motion
38.
Look at the graph.  What wave height would you predict a wave speed of 15 kts would produce?
a)
30 ft
b)
5 ft
c)
8 ft
d)
12 ft
39.
Look at the graph.  As wind speed increases, wave height __________.
a)
increases
b)
decreases
c)
stays the same
d)
doubles
40.
What is the periodic rise and fall of the water level in the oceans?
a)
Tide
b)
Tidal range
c)
Spring Tide
d)
Neap Tide
41.
What is the increased tide that occurs two times in a month at the new and full moons?
a)
Tidal range
b)
Spring Tide
c)
Neap Tide
d)
Tide
42.
What is the difference between levels of ocean water at high and low tide?
a)
Tide
b)
Tidal range
c)
Spring tide
d)
Neap tide
43.
What is a tide of minimum range that occurs during the 1st and 3rd quarters of the moon?
a)
Tide
b)
Tidal range
c)
Spring tide
d)
Neap tide
44.

Is the ocean ever still?

a)

Yes

b)

No

45.

How are waves created?

a)

Only Wind

b)

Only Energy

c)

Energy passing through water, as well as wind

d)

The Ocean Basin

46.

Is the bottom of the ocean affected by waves?

a)

No

b)

Sometimes

c)

Yes

47.

What is a high tide?

a)

Sea pulled TOWARD the moon where Earth is CLOSEST to the moon

b)

Sea pulled AWAY from the moon where Earth is FARTHEST to the moon

c)

Sea pulled AWAY from the moon where Earth is CLOSEST to the moon

48.
What is a difference between spring and neap tides?
a)
Spring tides occur when the earth and sun are IN LINE with the new or full moon. 
b)
Spring tides occur when moon in 3rd or 1st quarter phases
c)
Spring tides are LOWER than neap tides
49.
Which body has the greater effect on Earth's tides?
a)
Sun
b)
Saturn
c)
Moon 
d)
Venus
50.
At the same time the sea is drawn to the moon, another tidal bulge takes place on other side of Earth?
a)
Yes
b)
No
c)
Maybe
d)
I don't know!
51.
Spring tides and neap tides occur in patterns governed by the
a)
phases of the moon
b)
seasons (fall, winter, etc.)
c)
surface currents
d)
deep sea currents
52.

Wha type of tide would this arrangement of earth-moon-sun create?

a)

full moon tide

b)

new moon tide

c)

neap tide

d)

spring tide

53.
What type of tides would this arrangement of earth-moon-sun create?
a)
neap tide
b)
spring tide
c)
new moon tide
d)
full moon tide
54.

The upward motion of seawater in the ocean is called...

a)

downwelling

b)

uprising

c)

upwelling

d)

gravitational counter force

55.

Upwelling water is rich in nutrients.

a)

True

b)

False

56.

What is the speed of sound in water?

a)

1500 m/s

b)

15 m/s

c)

150 m/s

57.

The earth and other planets form from a process called accretion, where a planet is built by the collection of many pieces in space.

a)

true

b)

false

58.

Warm equatorial waters are known as carbon sinks.

a)

true

b)

false

59.

During a(n) ____ event, trade winds are much stronger than usual.

a)

El Nino

b)

La Nina

c)

Normal

d)

Partly sunny

60.

During an El Nino, it rains

a)

in the central Pacific

b)

in the FAR western Pacific

c)

in the western Pacific

d)

In all of the Pacific

61.

Both El Nino and La Nina have this in common

a)

Influence birds that migrate over the ocean

b)

Influence rainy / dry weather world wide

c)

The weather at the polar regions

d)

The directions that ships travel in the oceans

62.

During an El Nino, trade winds are typically...

a)

about average

b)

stronger

c)

weaker

63.

The image is of a(n):

a)

El Nino event

b)

La Nina event

c)

Non-El Nino (normal conditions)

64.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
65.

A insect like a water strider can skate along the top of a pond because:

a)

covalent bonds result in water cohesion

b)

hydrogen bonds result in water cohesion (surface tension)

c)

low surface tension of water

66.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
67.
Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
68.
Why does ice float?
a)
As water freezes, it expands and its density decreases.
b)
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
c)
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
d)
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
69.

Water travels up from the roots of a tree to the top because of

a)

adhesion and cohesion

b)

surface tension

c)

specific heat capacity

d)

density of water compared to ice

70.
Water droplets take a spherical shape (as pictured) because of ____________
a)
adhesion
b)
cohesion
c)
capillary action
d)
solubility
71.
A molecule with electrically charged areas is called a _______________.
a)
magnet
b)
polar molecule
c)
solution
d)
electrical molecule
72.

As you add drops of water to the surface of a coin, each drop sticks to the other water droplet because of ________________, and sticks to the penny because of ______________.

a)

adhesion, cohesion

b)

cohesion, adhesion

c)

capillary action, specific heat

d)

specific heat, capillary action

73.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
74.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
75.
Ice floats when placed in a liquid water because:
a)
ice is less dense than the liquid
b)
ice is more dense than the liquid
c)
ice is soluble
d)
water is adhesive
76.
Which of the following is LEAST likely to dissolve in water?
a)
nonpolar fats and oils
b)
polar sugar molecules
c)
salt made of a positive sodium ion and a negative chloride ion
d)
all of the substances will dissolve easily in water
77.

Which characteristic of water will allow a paperclip to remain floating on water when the paperclip is gently placed on top of the water?

a)

adhesion

b)

surface tension due to cohesion

c)

solvent properties

d)

nonpolar

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