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WorksheetsUnit 2: Earths Waters
Total questions: 50
Worksheet time: 58mins
Name
Class
Date
1.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
2.
When a molecule has an opposite electrical charge on each end, it is known as what?
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
3.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
4.
When water molecules stick easily to other water molecules, this is called what?
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
5.
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
6.
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
7.
Water molecules require a lot of energy to separate one from the others. This gives water a high
a)
density
b)
polarity
c)
solvency
d)
specific heat
8.
The reason the water balloon did NOT pop while held over a flame is water's _________.
a)
Less dense than air.
b)
Hydrogen bonds between water molecules.
c)
polarity.
d)
high specific heat capacity.
9.
Most of the Earth's water is in
a)
salty oceans
b)
freshwater lakes
c)
freshwater ponds
d)
glaciers
10.
Where is most of the freshwater found on Earth?
a)
lakes
b)
glaciers
c)
oceans
d)
rivers
11.
Which source of freshwater is not easily available for human use?
a)
oceans
b)
freshwater lakes
c)
rivers
d)
icecaps/glaciers
12.
The release of moisture by living plants through their leaves is known as
a)
evaporation
b)
precipitation
c)
condensation
d)
transpiration
13.
What is A?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
14.
What is B?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
15.
What is C?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
16.
What is D?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
17.
Which represents the distribution of water on Earth?
a)
3% freshwater, 97% salt water
b)
97% freshwater, 3% salt water
c)
71% freshwater, 29% salt water
d)
29% freshwater, 71% salt water
18.
The amount of dissolved solids and salt present in the water is called
a)
salinity
b)
chlorine
c)
nitrogen
d)
density
19.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
20.
Define tributaries
a)
small rivers or streams that flow into a large river or stream
b)
a natural stream of water of considerable volume
c)
precipitation that flows over the land to streams
d)
a continuous ridge that separates a watershed
21.
The land area that supplies water to a river system is called a
a)
water table
b)
trailer
c)
house
d)
watershed
22.
How deep must a well be drilled in order to extract water?
a)
below the zone of percolation
b)
below the zone of aeration
c)
below the water table
d)
just below the surface
23.
Suppose there is a drought in this area. The level of the river drops because of it.
What else could happen here?
What else could happen here?
a)
The river will immediately rise again.
b)
The water table will rise.
c)
The water table will fall.
d)
A new aquifer will form.
24.
What is an underground layer of rock or soil filled with water called?
a)
Aquifer
b)
Spring
c)
Well
d)
Reservoir
25.
What is the water that fills the cracks and spaces in underground soil and rock layers called?
a)
Groundwater
b)
Water Table
c)
Precipitation
d)
Snow
26.
Fresh water makes up what percent of the Earth's water?
a)
5%
b)
10%
c)
4%
d)
3%
27.
The top of the groundwater’s zone of saturation - E
a)
Zone of Aeration
b)
Aquifer
c)
Surface water
d)
Water table
28.
Any underground layer of permeable rock or sediment that holds water and allows it to flow is called an
a)
Acquifer
b)
Ocean
c)
Water table
d)
Water shed
29.
Permeability is:
a)
The amount of space between grains in a sediment.
b)
The ability for water to pass through a sediment.
30.
An area where groundwater becomes surface water, such as a spring or stream, is a
a)
recharge area
b)
discharge area
c)
runoff
d)
watershed
31.
An area where water (from precipitation or a stream) seeps into an aquifer, adding to the groundwater, is called a
a)
water table
b)
recharge area
c)
discharge area
d)
runoff
32.
What is the Coriolis effect?
a)
trade winds blowing north
b)
rotation of Earth
c)
trade winds blowing south
d)
more direct sunlight increases temperature
33.
What is the name for the process by which deep waters rise up when surface currents separate?
a)
upwelling
b)
coriolis effect
c)
thermohaline circulation
d)
gravity
34.
What factors affect surface currents?
a)
Global winds, Tides
b)
Continental deflection, Gravitational pull from moon
c)
Global winds, Coriolis effect, continental deflection
d)
Tides, gravity from sun, Global winds
35.
What happens when an ocean current meets a land mass?
a)
the water heats up
b)
the current is deflected
c)
a tidal bore forms
d)
an undertow recedes from the shoreline
36.
Explain the role of density in the movement of deep currents.
a)
Cold, high salinity (salty) deep current water is less dense than warm, low salinity surface current water. As warm water sinks, cold water will move in to take its place, creating a circular movement called a convection current.
b)
Cold, high (salinity) deep current water is more dense than warm, low salinity surface current water. As warm water rises, cold water will move in to take its place, creating a circular movement called a convection current.
c)
Warm, high salinity (salty) deep current water is less dense than warm, low salinity surface current water. As warm water sinks, cold water will move in to take its place, creating a circular movement called a convection current.
d)
Warm, high salinity (salty) deep current water is more dense than warm, low salinity surface current water. As warm water sinks, cold water will move in to take its place, creating a circular movement called a convection current.
37.
What is the initial source for global winds and convection in the atmosphere?
a)
Unequal heating of the Earth by the sun.
b)
The rotation of the Earth
c)
Moon's gravity
d)
continental deflection
38.
Describe convection.
a)
the transfer of heat energy across open space
b)
the transfer of heat energy by movement of water or air in a circular motion
c)
the transfer of heat energy by direct contact
39.
Which of the following is NOT a way to increase density of water?
a)
evaporation of water
b)
freezing of water
c)
Increasing the temperature of water
d)
Decreasing the temperature of water
40.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
41.
Which term best describes how the earth's atmosphere is heated?
a)
spirally
b)
unevenly
c)
circularly
d)
kinetically
42.
Deep-ocean currents are driven by
a)
differences in soil
b)
differences in the water’s density,
c)
differences in nutrients
d)
None of the Above
43.
What are streamlike movements of ocean water far below the surface?
a)
Upwelling
b)
Deep currents
c)
Surface currents
d)
Global winds
44.
Evaporation ___________ salinity.
a)
Decreases
b)
Increases
c)
Stops
d)
Helps
45.
What is the movement of deep, cold, and nutrient-rich water to the surface known as?
a)
Upwelling
b)
Ocean currents
c)
Surface currents
d)
Coriolis Effect
46.
What drives the surface ocean current?
a)
water
b)
wind
c)
waves
d)
tsunami
47.
These are vertical currents of ocean water that result from density differences among water masses.
a)
deep current
b)
surface current
c)
thermocline
d)
benthos
48.
The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?
a)
sublimation
b)
condensation
c)
evaporation
49.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
50.
What is the definition of sublimation?
a)
a chemical process where a solid turns into a gas without going through a liquid stage
b)
the process of a liquid changing into a gas
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