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1.5: Density and Pressure

Total questions: 10

Worksheet time: 18mins

Name
Class
Date
1.

Complete the equation: Density =

a)

Volume / Mass

b)

Mass / Volume

c)

Mass / Size

d)

Size / Mass

2.

The highest density water

a)

stays at the surface

b)

sinks to the bottom

c)

remains in the mid-water

3.

Warmer water tends to float near the surface because (select all that apply)

a)

it has higher density

b)

It has lower density

c)

the sun heats the water

d)

warmer water increases volume

4.

Which of the following water types would be found at the surface (choose only one)

a)

Warm, fresh water

b)

Warm salty water

c)

cold, salty water

d)

cold, fresh water

5.

The salinity of water along a depth profile was measured. Which of the following salinity results would most likely be found at the deepest point of the profile.

a)

15ppt

b)

38ppt

c)

20ppt

d)

26ppt

6.

Zone of rapid salinity increase with depth

a)

Halocline

b)

Pycnocline

c)

Thermocline

7.

Zone of rapid temperature change with depth

a)

Pycnocline

b)

Halocline

c)

Thermocline

8.

Ocean layers can be mixed do to (select all that apply)

a)

Strong winds

b)

Wave action

c)

Currents and upwelling

d)

Calm Seas

9.

In which of the following regions is the temperature gradient less dramatic (more consistent from surface to deep water).

a)

Tropics

b)

Mid-Latitudes

c)

Polar regions

10.

The water at the bottom of the ocean does not freeze because

a)

Increased salinity decreases the freezing point

b)

Decreased salinity decreases the freezing point