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Midterm Review #1

Total questions: 20

Worksheet time: 14mins

Name
Class
Date
1.

What is the main "salt" in the ocean?

a)

Magnesium Sulfate

b)

Sodium Chloride

c)

Calcium Carbonate

2.

How is salinity usually expressed?

a)

As parts per hundred (%)

b)

As parts per thousand (‰)

c)

As parts per million

3.

What will happen to density as temperature decreases?

a)
Density increases
b)
Density decreases
4.
As salinity  increases
a)
Density increases
b)
Density decreases
5.

Which of the following can INCREASE salinity?

a)

Melting of sea ice

b)

Evaporation

c)

Precipitation

d)

Runoff

6.
What is a thermocline?
a)
Region of significant density change
b)
Region of significant temperature change
c)
Region of significant salinity change
7.

What is shown by the BLUE line in the image?

a)

Pycnocline

b)

Thermocline

c)

Halocline

8.

The test group receives the manipulated variable (IV).

a)

True

b)

False

9.

Control variables are also called constants and they reduce anomalous data.

a)

True

b)

False

10.

Electrons involved in chemical bonding.

a)

valence

b)

ionic

c)

covalent

d)

metallic

11.

Which of the following is a correct description for solids?

a)

closely arranged and in fixed positions

b)

closely arranged and vibrate in fixed positions

c)

closely arranged and can move around

12.
Which of the following statements about the particle of a gas is true?
a)
Gases can be compressed because their particles are smaller than those of liquids or solids.
b)
Gases can be compressed because there is plenty of space between their particles.
c)
Gases can be compressed because they have low boiling points.
d)
Gases can be compressed because their particles are more elastic than those of liquids or solids.
13.
Mr. S normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands. What is his dependent variable?
a)
Type of reward
b)
Praise
c)
Type of dog
d)
Amount of time the dog follows commands
14.

the increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain

a)

solubility

b)

biomagnification

c)

pollution

d)

evaporation

15.
What process do the bacteria in vents use to produce energy?
a)
Photosynthesis
b)
Chemosynthesis
c)
Fermentation
d)
Cellular Respiration
16.
Which of the following statements about the kinetic particle theory is not true?
a)
The particles of a gas move faster than those of a liquid.
b)
The particles of a solid have more kinetic energy than those of a gas.
c)
The particles that make up matter are always moving.
d)
The forces of attraction between the particles of a solid are very strong.
17.
 The density of ocean water is influenced by what two factors?
a)
 Salinity and temperature
b)
Water color and chlorophyll
c)
 Dissolved gases and dissolved solids
d)
 Dissolved carbon and trace elements
18.
 How do conditions change as the depth of the ocean water increases?
a)
temperature decreases and pressure increases
b)
temperature increases and pressure increases
c)
temperature decreases and pressure decreases
d)
temperature increases and pressure decreases
19.
What happens to pressure as you go deeper into the ocean? 
a)
increases
b)
decreases
c)
stays the same
d)
doubles
20.

What is the mass number of this element?

a)

7

b)

8

c)

14

d)

14.01

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