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Marine - Sem. 1 exam pt. 1

Total questions: 33

Worksheet time: 17mins

Name
Class
Date
1.

What is the label 1

a)

Hydrogen atom

b)

Oxygen atom

c)

Hydrogen bond

d)

Covalent bond

2.

What is the labeled 4

a)

Hydrogen atom

b)

Oxygen atom

c)

Hydrogen bond

d)

Covalent bond

3.

Water can form droplets because water sticks to water, this property is called

a)

Cohesion

b)

Adhesion

c)

High Heat Capacity

d)

Universal solvent

4.

Water can travel up the roots/stems of plants because water can stick to other things, this property of water is called

a)

Cohesion

b)

Adhesion

c)

High Heat Capacity

d)

Universal Solvent

5.

Water is able to prove sea creature with a stable environment because it can absorb lots of heat without changing temperature, this property is called

a)

Cohesion

b)

Adhesion

c)

High Heat Capacity

d)

Universal solvent

6.

Water is good at dissolving things like salt, allowing it to create saltwater, this property of water is called

a)

Cohesion

b)

Adhesion

c)

High Heat Capacity

d)

Universal Solvent

7.

Which of the following is a solute

a)

Water

b)

Sugar

c)

Juice

d)

Glass

8.

What do we call the mixture of a dissolved solid and the liquid it dissolved into?

a)

Solute

b)

Solvent

c)

Solution

d)

Equation

9.

The ice layers which form on top of Arctic waters protect aquatic life by insulating the water beneath from the extreme cold temperatures. Which property of water contributes to the formation of this ice barrier?

a)

ability to absorb heat and not change temperature

b)

expansion of water as it freezes

c)

cohesion

d)

versatility as a solvent

10.

Which is warmer, 10 degrees Celsius or 10 degrees Fahrenheit?

a)

Celsius

b)

Fahrenheit

11.

When setting up an aquarium it is important to include an air pump or air stone in order to...

a)

Infuse oxygen into the water

b)

Filter out carbon dioxide from the water

c)

Reduce the amount of oxygen in the water

d)

Increase the density of the water

12.

Which of the following does not increase as we go deeper into the ocean

a)

Temperature

b)

Pressure

c)

Salinity

d)

Speed of sound

13.

Which of the following does not decrease as we go deeper into the ocean

a)

Light

b)

Temperature

c)

Dissolved Oxygen

d)

Speed of Sound

14.

Which of these tools uses sound to map the sea floor

a)

Secchi disk

b)

SCUBA

c)

SONAR

d)

Refractometer

15.

Which of these is a submersible (like a submarine) that can go down deep into the water

a)

Seine

b)

Bathysphere

c)

SCUBA

d)

SONAR

16.

Which of the following measures salinity based on how light bends through a water sample

a)

Bathysphere

b)

Refractometer

c)

Seine

d)

Secchi Disk

17.

Which of these is used to catch things like fish and have a lead line and float line to keep it vertically spread

a)

Seine

b)

Secchi Disk

c)

Hydrometer

d)

SONAR

18.

Which of these tools is used to measure the turbidity or cloudiness of water

a)

SCUBA

b)

Hydrometer

c)

Secchi Disk

d)

Plankton net

19.

Which of these is a measure of how compact or thick the water is

a)

Turbidity

b)

pH

c)

Density

d)

Temperature

20.

What do we call the measure of how salty the water is

a)

Salinity

b)

Turbidity

c)

pH

d)

Temperature

21.

What do we call the measure of how clear/cloudy the water is

a)

Salinity

b)

Turbidity

c)

pH

d)

Temperature

22.

Why do sound waves travel faster is water than in air?

a)

Because there are less obstacles underwater

b)

Because water molecules are close together and therefore transfer vibrations easier

c)

Sounds travel better in the larger spaces between water molecules compared to compact air molecules

d)

There are less competing sounds underwater

23.

Water molecules naturally want to flow towards the area with more solutes to dilute the sample and reach equilibrium

a)

True

b)

False

24.

What is the difference between climate and weather?

a)

Weather is long-term

b)

Climate is more harsh

c)

Climate changes daily

d)

Climate is long-term

25.

Which marine zone is expected to have the lowest rates of primary productivity (photosynthesis)

a)

photic

b)

aphotic

c)

shallow benthic

d)

pelagic

26.

Which zone produces the most global oxygen

a)

Intertidal

b)

Benthic

c)

Pelagic

d)

Photic

27.

In regards to the mid-ocean ridge, the oldest rocks would be found

a)

closest to land

b)

closest to the ridge

c)

half way between the ridge and land

d)

rock age doesn't change with location

28.

Trenches form when two tectonic plates collide and one is forced under the other, this is called

a)

Deduction

b)

Subduction

c)

Diverging plates

d)

Shearing plates

29.

The bends is an ascent injury that results in an air embolism/ bubble in the blood stream that forms because of

a)

rapid decrease in pressure

b)

rapid increase of pressure

c)

rapid change in temperature

d)

increase in air in the lungs

30.

On a pH scale the lower numbers (1-6) are called

a)

basic

b)

acidic

c)

neutral

d)

alkaline

31.

Circular currents in the world's oceans are called

a)

longshore currents

b)

convection currents

c)

gyres

d)

estuaries

32.

Global warming lowers the pH of the ocean, this affects shell-building animals because calcium carbonate decreases in

a)

acidic seawater

b)

basic seawater

c)

carbonated seawater

d)

evaporated water

33.

How can new evidence change science over time

a)

New evidence is detrimental to new theories

b)

New evidence leads to changes in scientific knowledge & new theories

c)

new evidence can change knowledge but not theories

d)

theories cannot be trusted because they always change