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Ocean Chemistry and Structure/ Technology

Total questions: 40

Worksheet time: 23mins

Name
Class
Date
1.

Ocean temperature, salinity, dissolved gases, and density are the same in all parts of the ocean.

a)

True

b)

False

2.

NaCl (Sodium chloride) is the only kind of salt in the ocean.

a)

True

b)

False

3.

Oxygen (O2), Carbon dioxide (CO2), and Nitrogen (N2) are all _________________________ that are important to marine life.

a)

ions

b)

dissolved gases

c)

carbohydrates

d)

carbon compounds

4.

Substances that are dissolved in a solvent (water) and can be either solids, gases, or other liquids:

a)

solutes

b)

solvents

c)

bases

d)

lipids

5.

Sodium chloride (NaCl) is an example of a dissolved _________________.

a)

liquid

b)

solid

c)

gas

d)

acid

6.

Carbon dioxide (CO2) enters the ocean from the ______________________________.

a)

atmosphere

b)

photosynthesis of aquatic plants and algae

c)

melting of sea ice

d)

freezing of seawater

7.

Carbon dioxide (CO2) is also produced in the ocean by ______________________________.

a)

photosynthesis of marine plants

b)

cellular respiration of marine organisms

c)

sea water freezing

d)

increased alkalinity

8.

Density of seawater is affected by these two factors:

a)

clarity and color

b)

hydrogen ions and dissolved oxygen

c)

transparency and turbidity

d)

temperature and salinity

9.

Ocean acidification occurs when too much _______________________________ enters the ocean from the atmosphere.

a)

calcium carbonate

b)

carbon dioxide

c)

sulfur dioxide

d)

nitrogen gas

10.

As a result of __________________________, there is not enough calcium carbonate available, needed by corals, crustaceans, mollusks (snails, etc).

a)

chemosythesis

b)

photosynthesis

c)

ocean acidification

d)

cellular respiration

11.

Refer to the picture of water sticking to a leaf; this is occurring because of:

a)

Adhesion

b)

Cohesion

12.

Refer to the picture; the water strider can walk over waters surface. This is occurring due to:

a)

Adhesion

b)

Cohesion

13.

Water is the universal solvent since it's:

a)

such a small molecule

b)

polar & able to make covalent bonds

c)

polar & able to make hydrogen bonds

d)

composed of an odd number of atoms

14.
Cohesion and adhesion have this in common:
a)
Hydrogen bonding
b)
They create non-polar molecules
c)
Only relate to water
d)
Universal solvent
15.

Water is a liquid at room temperature due to:

a)

Earth's position in the solar system

b)

Hydrogen Bonding & Adhesion

c)

Hydrogen Bonding & Cohesion

d)

It's always been a liquid at room temperature

16.

Refer to the photo of the results of the capillary tube demo. This tells us that water:

a)

Is a liquid at room temperature

b)

Can climb upwards using adhesion, against gravity

c)

Water can be cohesive with certain molecules, such as glass

d)

Is not a unique substance, at all.

17.
What property of water allows it to be such a versatile solvent that it is often called the "universal solvent?"
a)
Purity
b)
Polarity and cohesion
c)
High heat capacity
d)
Expansion upon freezing
18.
Large bodies of water do not quickly fluctuate in temperature. Why?
a)
Water is a solvent.
b)
Water has a high heat capacity.
c)
Water acts as a buffer.
d)
Water is non-polar.
19.
Why does water move from the roots to the leaves of plants?
a)
Water is pushed by solutes
b)
Capillary action pulls the water molecules like a chain
c)
Water is pulled by gravity
d)
Water’s cohesion causes it to “pull” towards the leaves
20.
The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.
a)
adhesion
b)
capillary action
c)
cohesion
d)
surface tension
21.
Which is NOT a unique property of water?
a)
Frozen water floats on liquid water.
b)
Water covers most of the Earth’s surface and retains a large amount of heat.
c)
Water molecules stick to each other through hydrogen bonds.
d)
Water cools very rapidly.
22.
What property of water helps to moderate earth's temperature?
a)
adhesion
b)
chohesion
c)
Specific heat capacity
d)
Latent heat of vaporization
23.
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.
24.
Water is polar because...
a)
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
b)
The molecule has two poles, at which the it is colder than other regions of the molecule.
c)
The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
d)
The water molecule is neutral.
25.
The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form
a)
less polar
b)
more polar
c)
less dense
d)
more dense
26.
Which types of compounds dissolve easily in water?
a)
Polar and Nonpolar
b)
Polar and Ionic
c)
Nonpolar and Ionic
d)
Covalent and Nonpolar
27.

Chloride ions make up 55.03% of the amount of salt present anywhere in the ocean. This is an example of the:

a)

Theory of evolution by natural selection

b)

Laws of motion

c)

Rule of constant proportions

d)

Cell theory

28.
What can an ROV be compared to?
a)
submarine
b)
remote control car with a cord
c)
remote control car with NO cord
d)
an island
29.
The Titanic was built in
a)
London, England
b)
New York, New York
c)
Belfast, Ireland
d)
Pigeon Forge, Tennessee
30.
The Titanic sailed how many times BEFORE the trip in which she sunk
a)
None
b)
Twice
c)
Seven
d)
Twelve
31.
The Titanic set sail in
a)
1945
b)
1963
c)
1912
d)
1908
32.
The captain of the Titanic was
a)
Captain Edward J. Smith
b)
Captain Antonio Kirk
c)
Captain Bert Blyleven
d)
Captain Marvel
33.

The Titanic struck a ______.

a)

Ship

b)

Iceberg

c)

Rock

d)

Island

34.

What factors could of prevented the titanic from sinking and saved more lives aboard? (Choose all that apply)

a)

The Titanic should of taken heed of the several warning given by other ships in the area and stopped for the night.

b)

The Titanic's owner should not have been so prideful on making port sooner then predicted.

c)

The life boats should have been filled to capacity and 600 more lives could of been saved.

d)

The captain did exactly what he was supposed to do, the tragedy could not have been avoided.

35.

What is the final resting place of the RMS Titanic? (Choose all that apply)

a)

The titanic is lying about 600km (370 miles) off the coast of Newfoundland, Canada.

b)

The Titanic lies in the Atlantic Ocean.

c)

The Titanic sank off the coast of California.

d)

The Titanic sank in the Indian Ocean.

36.

What do they hope for the future of the Titanic? (choose all that apply)

a)

They are hoping to be able to turn the Titanic into a museum.

b)

They plan to let another country take all the artifacts off the ship and put it in a museum.

c)

There was a museum build in Belfast, Ireland to honor the building of the Titanic.

d)

They plan to let it return to the sea.

37.

What technology has been used to explore the Titanic Wreckage? (Choose all that apply)

a)

Submersibles - Alvin, Limiting Factor

b)

ROV's- Jason Junior

c)

ARGOS

d)

The Titan

38.

Who is credited for discovering the Titanic?

a)

Germany

b)

French- American Team led by Dr. Robert Ballard

c)

Japan

39.

How was the discovery of the Titanic made?

a)

Under the cover of US Navy submersible recovery mission.

b)

With the funds of the Queen of England.

c)

By the German submersible team.

40.

The Titanic resting place is considered to be a graveyard for over 1500 people lost in the shipwreck.

a)

True

b)

False

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