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Water

Total questions: 201

Worksheet time: 4hrs 4mins

Name
Class
Date
1.
If all of the Earth's water were placed into a gallon jug, the freshwater would equal _____
a)
a single teaspoon
b)
a single tablespoon
c)
half a cup
d)
a single cup
2.
Of the three blue dots in the image, the biggest one represents _____
a)
all of the water on our planet
b)
all of the salt water on our planet
c)
all of the liquid fresh water on our planet
d)
all of the surface freshwater that is accessible
3.
Of the three blue dots in the image, the medium-sized dot represents _____
a)
all of the water on our planet
b)
all of the salt water on our planet
c)
all of the liquid fresh water on our planet
d)
all of the surface freshwater that is accessible
4.
Of the three blue dots in the image, the teeny-tiny dot represents _____
a)
all of the water on our planet
b)
all of the salt water on our planet
c)
all of the liquid fresh water on our planet
d)
all of the surface freshwater that is accessible
5.
Holding about one-fifth of the world's freshwater, what is the deepest lake in the world?
a)
North America's Lake Superior
b)
Africa's Lake Chad
c)
Russia's Lake Baikal
d)
Africa's Lake Tanganyika
6.
Which species of freshwater seal is found in Lake Baikal?
a)
the Caspian seal
b)
the nerpa
c)
the Ladoga seal
d)
the Saimaa ringed seal 
7.
How have the nerpa adapted to the thick ice that covers Lake Baikal in winter?
a)
their flippers are notably big and strong
b)
their skull is extra thick
c)
they have higher than average body fat
d)
their eyes are extra sensitive
8.
The nerpa use their super strong flippers to _____
a)
battle other nerpa for territory
b)
crawl onto large rocks 
c)
swim great distances under the ice
d)
make breathing holes in the ice
9.
Lake Chad is located on the edge of _____
a)
the Kalahari Desert in Africa
b)
the Gobi Desert in China
c)
the Sahara desert in Africa
d)
the Arabian Desert in Asia
10.
To deal with a lack of water , the addax antelope _____
a)
have longer legs than usual
b)
change the color of their hair
c)
grow long horns
d)
have humps like camels
11.
In the winter, the coat of the addax antelope turns to light brown to help them _____
a)
hide from predators
b)
absorb more heat
c)
reflect sunlight
d)
sneak up on prey
12.
Living things can survive with limited freshwater, but only if they can _____
a)
store large amounts of water
b)
adapt to their surroundings
c)
reflect sunlight
d)
change the color of their hair
13.
Letter B is?
a)
evaporation
b)
transpiration
c)
condensation
d)
accumulation
14.
Letter C is?
a)
precipitation
b)
transpiration
c)
condensation
d)
accumulation
15.
Letter D is?
a)
precipitation
b)
transpiration
c)
condensation
d)
run off
16.
Letter F is?
a)
precipitation
b)
accumulation
c)
condensation
d)
run off
17.
What is the chemical formula for water?
a)
2HO
b)
H2O
c)
HO2
d)
H2O2
18.
How many hydrogen atoms are in one molecule of water?
a)
1
b)
2
c)
3
d)
4
19.

Water pollution and waste plays a big factor in water shortage.

a)

True

b)

False

20.
What percent of Earth is covered by water and ice?
a)
85%
b)
90%
c)
75%
d)
97%
21.
The water cycle has...
a)
a beginning and an end. 
b)
no beginning and no end. 
c)
only a beginning. 
d)
only an end. 
22.
What is condensation?
a)
the change of water from a gas to a liquid. 
b)
the change of water from a liquid to a gas. 
c)
the change of water from a solid to a gas. 
d)
the change of water from gas to a solid. 
23.
What are the three states of water found on Earth?
a)
solid, liquid & gas
b)
oceans, lakes & streams
c)
evaporation, transpiration
d)
rain, sleet & hail
24.
When water _________, dew and clouds can form.
a)
Melts
b)
Evaporates
c)
Condenses
d)
Precipitates
25.
Evaporation occurs when water changes into ________.
a)
transpiration
b)
snow
c)
solid
d)
vapor
26.
What percent of Earth's water is the oceans?
a)
70%
b)
85%
c)
90%
d)
97%
27.
Which of these is a method for conserving fresh water?
a)
Taking long showers and baths
b)
Taking short showers and baths
c)
Leaving the water running while brushing your teeth
d)
Washing your car with a running hose
28.

The processes in which water vapor (a gas) in the air turns into liquid water

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

Transpiration

29.

The pattern of water moving between Earth and the atmosphere.

a)

Carbon Cycle

b)

The Groundwater Cycle

c)

The Water Cycle

d)

The Carbon Cycle

30.

Why was there lead levels so high in Flint, MI?

a)

The lake had high levels of lead.

b)

The water was not purified correctly

c)

There was no lead in the water

d)

The lead from the pipes was getting in the water

31.

Which part of the image of rocks will hold more water?

a)

Right

b)

Left

c)

Center

32.

This is the flow of underground water when it reaches the surface.

a)

Groundwater

b)

Spring

c)

Geyser

d)

Well

33.

What is the process happening at #3

a)

Evaporation

b)

Precipitation

c)

Condensation

d)

Transpiration

34.

What process is happening at #2

a)

Evaporation

b)

Condensation

c)

Precipitation

d)

Transpiration

35.

What are examples of fresh water (there may be more than 1 correct answer)

a)

Water in the atmosphere

b)

Glaciers

c)

Ocean water

d)

Lake

36.

True or False: The more pores in the ground, the less ground water is stored there.

a)

True

b)

False

37.

This is when water evaporates through pores of a plant

a)

Transpiration

b)

Evaporation

c)

Condensation

d)

Hydrologic cycle

38.

What percent of the Earth is Fresh Water?

a)

97%

b)

45%

c)

22%

d)

3%

39.

When rocks and soil become saturated, the ground water rises. This is called:

a)

Spring

b)

Geyser

c)

Cave

d)

Water Table

40.

What are health concerns associated with drinking water with lead? (there is more than 1 correct answer)

a)

Rots your teeth

b)

Behavior problems

c)

Create bigger muscles

d)

Slows growth

41.

Which are examples of precipitation? (more than 1 correct answer)

a)

rain

b)

snow

c)

wells

d)

geysers

42.

What types of soil can hold a LOT of water? (select all that apply)

a)

Soil with few pores

b)

Soil with lots of pores

c)

Loosely packed soil

d)

Tightly packed soil

43.

The processes in which water vapor (a gas) in the air turns into liquid water

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

Transpiration

44.

The pattern of water moving between Earth and the atmosphere.

a)

Carbon Cycle

b)

The Groundwater Cycle

c)

The Water Cycle

d)

The Carbon Cycle

45.

Why was there lead levels so high in Flint, MI?

a)

The lake had high levels of lead.

b)

The water was not purified correctly

c)

There was no lead in the water

d)

The lead from the pipes was getting in the water

46.

Which part of the image of rocks will hold more water?

a)

Right

b)

Left

c)

Center

47.

What were the specific water quality test performed on our creeks

a)

Pollution, dilution, and erosion

b)

Dissolved Oxygen, pH, and temperature

c)

Turbidity, pollution, pH

d)

Photosynthesis, cellular respiration and limiting factors

48.

What does Dissolved Oxygen mean?

a)

How much acid is in the water

b)

How cold the water is

c)

DO

d)

How much oxygen is in the water

49.

Factors that affect dissolved oxygen include

a)

temperature and stream flow.

b)

lack of fish and amphibians.

c)

the amount of carbon dioxide.

d)

Non of the above.

50.

What are some processes that cause diffusion (the spreading of matter through natural movements) of oxygen into the water?

a)

Frogs and fish

b)

Flowing of water and photosynthesis.

c)

pH and temperature

d)

All of the above

51.
Snow, sleet, hail, and rain are all examples of  ________________. 
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
52.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
53.
Why can water have no net charge but have slight charges in different parts of the molecule?
a)
The oxygen end is slightly negative and the hydrogen end is slightly positive
b)
The hydrogen end is slightly negative and the oxygen end is slightly positive
c)
The hydrogen and oxygen ends change in polarity
d)
Because it is hydrophobic
54.

Water’s ability to be attraction to other water molecules.

a)

adhesion

b)

capillary action

c)

cohesion

d)

surface tension

55.
A molecule with electrically charged areas is called a _______________.
a)
magnet
b)
polar molecule
c)
solution
d)
electrical molecule
56.

What percentage of the earth is water?

a)

50%

b)

60%

c)

71%

d)

80%

57.
"Ensuring availability of water for future generations" is a
a)
Goal of water conservation
b)
Strategy of water conservation
c)
Key activity of water conservation
58.
what is the water division of earth
a)
ocean water 97.5 per cent,freshwater frozen as ice 1.5 per cent and freshwater 1 per cent
b)
ocean water-47%,freshwater 50%,freshwater frozen as ice 3%
c)
ocean water 1%,freshwater frozen as ice-90%,freshwater9%
d)
freshwater-33.33%,freshwater frozen as ice 33.33%,ocean water 33.33%
59.

A scientist studies a sample of swamp water. She finds that there are many dead plants and fish in the water. ________ in the water could be the main cause of this.

a)

oxygen

b)

litter and pollution

c)

mud and silt

d)

pebbles and sand

60.

what is the main cause of water pollution?

a)

invasive species

b)

animals

c)

plants and insects

d)

human impact and decision making

61.
Which of the following is a way of conserving water?
a)
Leave the tap running while brushing teeth
b)
Use a hose to wash the car
c)
Use the washing machine at full load
d)
Leave the shower running while soaping
62.
Why do we need to conserve water?
a)
It is an unlimited resource. 
b)
It is a limited resource. 
c)
There is a lot of water. 
d)
There is no need to conserve water.
63.
 It’s okay to flush some trash down the toilet like cotton balls and tissue
a)
True
b)
False
64.
Keeping the water running when you brush your teeth wastes a lot of water.
a)
True
b)
False
65.
When is the best time of day to water your lawn?
a)
Early morning or late evening
b)
In the afternoon
c)
All day long
d)
At night
66.
Water that is stored in layers of rock and soil beneath the Earth's surface is called ________
a)
groundwater
b)
sewage
c)
a reservoir
d)
an underground stream
67.
An area underground that water flows through is called an _____
a)
Water Table
b)
Zone of Aeration
c)
Aquifer
d)
Drainage Basin
68.
Approximately 75 percent of the Earth's surface is covered in water. So why is water considered such a precious resource?
a)
The greenhouse effect is causing most of the world's freshwater to be trapped in the atmosphere
b)
Only a small fraction of the Earth's water is freshwater available for drinking and irrigation
c)
Each year, more freshwater is being trapped in icecaps located at the North and South Poles
d)
Global warming caused by greenhouse gas emissions will likely cause Earth's oceans to evaporate
69.
What will most likely happen if the human population continues to grow at current rates?
a)
There will be fewer natural resources available for future generations.
b)
There will be an increase in nitrogen levels in the atmosphere.
c)
There will be a decrease in water pollution.
d)
There will be an increase in the number of strong hurricanes
70.
Which actions taken by a school environmental club would make a positive human impact?   
a)
planting native trees along the border of the school property 
b)
making wooden benches by harvesting local trees 
c)
introducing a new population of foxes to school grounds
d)
clearing an area to make room for additional student parking
71.

What usually uses more water in the home?

a)

Washing machine

b)

taking a shower

c)

brushing your teth

d)

drinking water

72.

Approximately how many gallons of water does it take to grow sugar cane?

a)

20- 25 gallons

b)

2-4 gallons

c)

180-200 gallons

73.

What percentage of the earth's water is salt water?

a)

3%

b)

25%

c)

71%

d)

96.5%

74.

Based on our articles and class information, predict what will happen to the percentage of water frozen in glaciers and ice Caps over the next 20 years?

a)

It will increase from 68.7%

b)

It will stay the same at 68.7%

c)

It will decrease from 68.7%

75.

1/3 of household watering is for outdoors. What are good irrigation practices for lawns or gardens?

a)

Avoid watering in the heat of the day so it doesn't evaporate.

b)

Don't water on windy or rainy days

c)

Do not water lawns between 10 AM -4 PM

d)

All of the above

76.
What is the water cycle?
a)
the 3 forms of water
b)
the movement of water on, above, or below the surface of the Earth
c)
when water melts
d)
when clouds form
77.
What part of the water cycle does this picture show?
a)
condensation
b)
precipitation
c)
evaporation
78.
Which is the opposite of condensation?
a)
runoff
b)
evaporation
c)
precipitation
d)
transpiration
79.
Which best explains why runoff is important?
a)
It returns water to other locations on Earth
b)
It increases the chance of flooding
c)
It makes evaporation occur faster
d)
It increases condensation
80.
Snow, sleet, hail, and rain are all examples of  ________________. 
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
81.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
82.
When water _________, dew forms.
a)
Melts
b)
Evaporates
c)
Condenses
d)
Precipitates
83.
What is the energy source for the water cycle?
a)
the sun
b)
the earth
c)
water
d)
the moon
84.
Precipitation happens when clouds of water droplets are too ______________.
a)
cold
b)
light
c)
heavy
d)
hot
85.
Evaporation happens when the sun ___________ water and turns it into vapor.
a)
cools
b)
heats up
c)
freezes
d)
lights up
86.
During which stage do clouds form?
a)
condensation
b)
evaporation
c)
precipitation
87.
What is a man-made hole drilled below water table?
a)
natural spring
b)
lake
c)
wetlands
d)
well
88.
What is a layer of rock or sediment that holds water?
a)
glacier
b)
well
c)
aquifer
d)
natural spring
89.

What is water quality?

a)

It describes the condition of the water

b)

It is the continuous movement of water on, above, and below the surface of the Earth

c)

It is the property of containing salt

d)

It is the total amount of suspended solids.

90.

What is salinity?

a)

The property of containing salt

b)

The amount of suspended solids

c)

Describes the condition of the water

d)

Describes how acidic or basic water is

91.

What is dissolved oxygen?

a)

The property of containing salt

b)

The amount of suspended solids

c)

The measure of the amount of oxygen that is dissolved

d)

Describes how acidic or basic water is

92.

Where are nitrates and phosphates found?

a)

Fertilizer

b)

Manure

c)

Detergent

d)

All of the above

93.

Why are too many nutrients (like nitrates and phosphates) bad for our waters?

a)

Nutrients decrease the pH of the water, causing it to become increasingly acidic

b)

Nutrients change the salinity of the water

c)

Wetlands filter out runoff that may contain nutrients

d)

Nutrients in the water cause too much algae growth, which decrease the level of oxygen in the water

94.

Which glass contains water with high turbidity?

a)

Glass 1

b)

Glass 2

95.

Which glass has the highest salinity?

a)

The left one

b)

The middle one

c)

The right one

96.

Which statement best describes freshwater?

a)

Freshwater is water only found in the atmosphere.

b)

Freshwater is water found in the oceans.

c)

Freshwater is water found only underground.

d)

Freshwater is water found in lakes, rivers and streams.

97.

What percentage of the Earth is covered with water?

a)

71%

b)

30%

c)

50%

d)

90%

98.

Where is most freshwater on Earth located?

a)

Most of Earth's freshwater is found in lakes, rivers and streams.

b)

Most of Earth's freshwater is found in snow, ice caps and glaciers.

c)

Most of Earth's freshwater is found in the oceans and seas.

d)

Most of Earth's freshwater is found in groundwater.

99.

What percentage of ALL WATER on Earth is saltwater?

a)

20%

b)

3%

c)

97%

d)

84%

100.

What percentage of freshwater is available for us to use?

a)

1%

b)

2%

c)

3%

d)

10%

101.

What percentage of freshwater is located in glaciers and ice caps?

a)

1%

b)

2%

c)

4%

d)

20%

102.

Which one shows the correct amount of water on Earth from LARGEST to SMALLEST?

a)

Glaciers, groundwater, oceans

b)

Oceans, groundwater, glaciers

c)

Oceans, glaciers, groundwater

103.

Which statement is true?

a)

About 70% of Earth’s surface is covered in water

b)

About 30% of Earth’s surface is covered in water

c)

Freshwater makes up about 90% of Earth’s surface

104.

Only 3% of Earth’s water is freshwater. About 60% is not available for us to use. Why is this?

a)

It is groundwater

b)

It is frozen in glaciers

c)

It is polluted water

105.

What does a hydrothermal vent add to the oceans?

a)

Freshwater

b)

Minerals (Salts)

c)

Sea Creatures

106.

What percentage of the Earth’s sea water is salt?

a)

1.5%

b)

3.5%

c)

25%

d)

50%

107.

What is one way that salt is added to the ocean?

a)

By rivers carrying sediment to the ocean

b)

By earthquakes

c)

By rainfall

d)

By the change of the seasons

108.

What substance on Earth can be in the form of a solid, liquid and a gas?

a)

Lava

b)

Oil

c)

Energy

d)

Water

109.

How is salt removed from the oceans?

a)

By rivers adding sediment

b)

By earthquakes

c)

By sea creatures making shells

d)

By hydrothermal vents

110.

Water pollution occurs when:

a)

Harmful substances enter a water supply

b)

Industries dispose of waste safely and correctly.

111.

We can prevent water pollution by:

a)

Reduce the use of plastic.

b)

Properly dispose of chemicals.

c)

Clean up after your animals.

d)

All of the above

112.

There is nothing we can do to stop water pollution.

a)

True

b)

False

113.

What are the main sources of water pollution?

a)

Agriculture (farming) and industry

b)

Snails in water

114.

Who does water pollution impact?

a)

Shrek and his swamp

b)

Animals only

c)

Only us people

d)

Everything on the planet

115.

Which of the following is not a natural cause of water pollution?

a)

Volcanoes

b)

Animal waste

c)

Oil spills

d)

Silt from storms and floods

116.

What can happen to fish when there is not enough oxygen in the water?

a)

They can suffocate

b)

They can't float

c)

Nothing. Fish don't need oxygen.

117.
TRUE or FALSE. Many people on Earth do not have accces to clean water.
a)
TRUE
b)
FALSE
118.

TRUE or FALSE: Although water pollution is bad, it doesn't actually cause anything to die.

a)

TRUE

b)

FALSE

119.

3 things water pollution causes:

a)

Death of animals

b)

Habitat destroyed

c)

Humans sick

d)

Lung damage

120.
What is the energy source for the water cycle?
a)
the sun
b)
the earth
c)
water
d)
the moon
121.
During which stage do clouds form?
a)
condensation
b)
evaporation
c)
precipitation
122.
Which stage does the #2 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
123.
Which stage does the #3 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
124.
what does the #4 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
125.
Which of these is an example of precipitation?
a)
snow
b)
air
c)
clouds
d)
vapor
126.
Which is the opposite of condensation?
a)
runoff
b)
evaporation
c)
precipitation
d)
transpiration
127.
Snow, sleet, hail, and rain are all examples of  ________________. 
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
128.
What happens after groundwater at the very end/beginning of the water cycle?
a)
Evaporation
b)
Transpiration
c)
Condensation
d)
Groundwater
129.
When water _________, dew forms.
a)
Melts
b)
Evaporates
c)
Condenses
d)
Precipitates
130.
What is the water cycle?
a)
the 3 forms of water
b)
the movement of water on, above, or below the surface of the Earth
c)
when water melts
d)
when clouds form
131.
What does this illustration show?
a)
Sunrise
b)
The Water Cycle
c)
Sunset
d)
the recycling of snow
132.
Dew also forms directly onto items, as water droplets.  What part of the water cycle is this?
a)
run-off 
b)
condensation
c)
evaporation
d)
precipitation
133.
This is what heats up the water to start the  water cycle. 
a)
sun
b)
moon
c)
stars
d)
Mars
134.
What is water doing when it is changed to water vapor?
a)
evaporating
b)
condensing
c)
transpiring
d)
freezing
135.
What is the energy source for the water cycle?
a)
the sun
b)
the earth
c)
water
d)
the moon
136.

Which example is a form of precipitation?

a)

Dew

b)

Fog

c)

Frost

d)

Hail

137.

How is transpiration important to the water cycle?

a)

It is the evaporation of water from the leaves of plants back into the atmosphere allowing the cycle to continue.

b)

It results in the deposition of water vapor directly as ice, so water changes states causing the cycle to move to the next phase.

c)

It allows plants to absorb water through their roots which is then precipitated back into the atmosphere.

d)

It permits the diffusion of water from the surface to water tables deep underground which restores groundwater supplies.

138.

In which area would the rate of evaporation be the lowest?

a)

Over the ocean

b)

Over the mountains

c)

Over the rainforest

d)

Over the desert

139.

Water forms on the outside of iced tea on a hot day. What process causes the water to form?

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

Transpiration

140.

On Earth, what process generates most of the water vapor?

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

Transpiration

141.
Which source of freshwater is not easily available for human use?
a)
oceans
b)
freshwater lakes
c)
rivers
d)
icecaps/glaciers
142.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
143.
What part of the water cycle does this picture show?
a)
condensation
b)
precipitation
c)
evaporation
d)
sublimation
144.

In the diagram, transpiration is represented by which numbered area?

a)

1

b)

2

c)

3

d)

4

145.

Fresh water is

a)

the process of water turning into gas

b)

water vapor that turns into water

c)

water that contains little or no dissolved salts

d)

clouds that form close to the ground

146.

Where can MOST of the Freshwater be found?

a)

glaciers

b)

rivers

c)

lakes

d)

rain

e)

aquifers

147.

Which word BEST describes SALINITY? (a synonym)

a)

water

b)

fresh

c)

ocean

d)

salt

148.

What is Earth's major water storage, home to 97.5% of all water on Earth?

a)

rivers

b)

glaciers

c)

ocean

d)

lakes

149.
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
150.
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
151.

An underground water supply is...

a)

erosion

b)

river

c)

water shed

d)

aquifer

152.

Pollution traced to a single point

a)

water shed

b)

permeable

c)

point source pollution

d)

non-point source pollution

153.

Allowing liquids to pass through, such as water through the ground

a)

permeable

b)

pollution

c)

impermeable

d)

yup, you know it

154.

The Portion of water that flows across the surface that does not soak into the ground and runs into water bodies

a)

what

b)

fertilizer

c)

erosion

d)

runoff

155.

Liquids cannot pass through

a)

permeable

b)

nope

c)

erosion

d)

Impermeable

156.

Small particles that is made up rocks, soil

a)

river basin

b)

impermeable

c)

water

d)

sediment

157.

The gradual downward flow of water that soaks into surface

a)

river

b)

erosion

c)

infiltration

d)

water uptake

158.

Pollution that cannot be traced to a single point because comes from many sources

a)

estuary

b)

water shed

c)

non point source pollution

d)

point source pollution

159.

The water found in cracks and pores in sand, gravel and rocks below the surface

a)

sediment

b)

ground water

c)

ocean water

d)

surface water

160.

The wearing away of the earth’s surface by water, wind or ice

a)

river basin

b)

pollution

c)

ocean waves

d)

erosion

161.

A chemical sprayed to kill insects or bugs.

a)

aquifer

b)

fetilizer

c)

herbicide

d)

pesticide

162.

Taking care of natural resources like water, or soil...

a)

infiltration

b)

point source pollution

c)

conservation

d)

erosion

163.

Planting trees, grass, or any plant to create a "natural fence" to protect water from pollutants

a)

fertilizer

b)

drought

c)

vegetative buffer

d)

infiltration

164.

The land that water flows across or under on its way to a stream, river, or lake is called...

a)

conservation

b)

land form

c)

runoff

d)

watershed

165.

? is the portion of land drained by a river and its tributaries.

a)

River Basin

b)

Aquifer

c)

Erosion

d)

Watershed

166.
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
167.
Where is most of the freshwater found on Earth?
a)
lakes
b)
glaciers
c)
oceans
d)
rivers
168.
Most of the Earth's water is in
a)
salty oceans
b)
freshwater lakes
c)
freshwater ponds
d)
glaciers
169.
The total amount of water on Earth is constantly changing.
a)
true
b)
false
170.
Where does runoff end up?
a)
ponds
b)
streams
c)
rivers
d)
all of the above
171.
The process where rain water soaks into the ground through soil and rocks is called __________.
a)
precipitation
b)
infiltration
c)
evaporation
d)
condensation
172.
What is runoff?
a)
the excess water that isn't absorbed into the ground after it rains
b)
the vapor that is created when the sun's heat warms the Earth's surface
c)
water that is absorbed into the ground and collects in rocks and soil
d)
water droplets that combine to form clouds
173.

The diagram shows the distribution of water on the Earth. Which source is the most abundant supply of liquid surface water that is not salty?

a)

groundwater

b)

oceans

c)

lakes

d)

rivers

174.

The graphic shows that only 3% of the Earth's water is fresh water. The graphic also shows that of this 3%, almost all of it is contained in two reservoirs. What are the two reservoirs that contain almost all of Earth's fresh water?

a)

glaciers and groundwater

b)

streams and estuaries

c)

marshes and swamps

d)

lakes and rivers

175.

The diagram shows the distribution of water on the Earth. Based on the diagram, which is true?

a)

Most of Earth's water is fresh water.

b)

Most of Earth's fresh water is contained in glaciers and ground water.

c)

Most of Earth's water is contained in glaciers.

d)

Most of Earth's fresh water is contained in the oceans.

176.

Water underground is stored in ____________.

a)

aquifers

b)

reservoirs

c)

wells

d)

depositories

177.

Water moves through Earth's layers until it reaches a ______ layer.

a)

saturated

b)

water table

c)

impermeable layer

d)

permeable

178.

Approximately _____ percent of Earth's water is freshwater.

a)

97

b)

1

c)

3

d)

10

179.

Approximately what percent of Earth's water is salt water?

a)

3

b)

70

c)

79

d)

97

180.

What percent of Earth's freshwater is available for humans to use?

a)

3

b)

less than 1

c)

97

d)

10

181.
Which is the opposite of condensation?
a)
runoff
b)
evaporation
c)
precipitation
d)
transpiration
182.
Which best explains why runoff is important?
a)
It returns water to other locations on Earth
b)
It increases the chance of flooding
c)
It makes evaporation occur faster
d)
It increases condensation
183.
What is it called when WATER is FORMED from an LIQUID to a WATER VAPOR Oor an [GAS]?
a)
EVAPORATION
b)
PRECIPITATION
c)
TRANSPIRATION
184.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
185.
The ________ is the driving force of the earth's surface.
a)
sun
b)
moon 
c)
stars
186.
What is the process during which water cools and turns from a gas to a liquid?
a)
Codensation
b)
Runoff
c)
Precipitation
d)
Evaporation
187.
True or False: Water droplets bond together with dust particles to form clouds during condensation.
a)
True
b)
False
188.
Freshwater that is stored in the form of snow and ice.
a)
Frozen Water
b)
Aquifer
c)
Atmosphere
d)
Snowmelt
189.
The flow of excess water on Earth’s surface due to too much meltwater or stormwater. 
a)
Surface runoff
b)
Infiltration
c)
Water Cycle
d)
Glacier
190.
The process where plants absorb water through the roots and then give off water vapor through their leaves.
a)
Transpiration
b)
Respiration
c)
Oxygen
d)
Infiltration
191.
A slow-moving mass of ice formed from snow accumulation over hundreds to thousands of years. 
a)
Glacier
b)
Groundwater
c)
Lake
d)
Ocean
192.

As a part of the water cycle, water from Earth's surface enters the clouds and finally falls back to the ground in the form of rain. What is the correct sequence of processes water undergoes?

a)

Evaporation, Condensation, Precipitation

b)

Precipitation, Condensation, Evaporation

c)

Condensation, Evaporation, Precipitation

d)

Evaporation, Precipitation, Condensation

193.

What would happen if the Sun is removed from the water cycle?

a)

The water cycle would not include precipitation but would continue with groundwater flow.

b)

The water cycle would no longer occur because the Sun provides the energy for evaporation and transpiration.

c)

The water cycle would no longer occur because the Sun provides energy for the formation of clouds.

d)

The water cycle would not include evaporation and transpiration but would continue with condensation.

194.

What is another name or synonym for the water cycle?

a)

Geologic cycle

b)

Hydrologic cycle

c)

Geosphere

d)

Carbon cycle

195.

What is the energy source that drives the water cycle?

a)

The moon T

b)

The heat from our home in the winter all around the world

c)

The sun

d)

he heat generated solely from the core of the earth

196.

The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat. ____________________

a)

Evaporation

b)

Convection

c)

Precipitation

d)

Transpiration

197.

How does cellular respiration contribute to the process of evaporation?

a)

When organisms perform cellular respiration, they exhale water vapor, which contributes to evaporation.

b)

When organisms perform cellular respiration, they inhale water vapor, which contributes to evaporation.

c)

When organisms perform cellular respiration, they exhale carbon dioxide, which contributes to evaporation.

d)

When organisms perform cellular respiration, they inhale oxygen, which contributes to evaporation.

198.

Precipitation might contribute to the addition of pollutants to rivers, lakes, and oceans because...

a)

it carries pollutants from the atmosphere into bodies of water

b)

it collects any pollutants that are in or on the ground in the water supply

199.

Runoff might contribute to the addition of pollutants to rivers, lakes, and oceans because...

a)

it carries pollutants from the atmosphere into bodies of water

b)

it collects any pollutants that are in or on the ground in the water supply

200.

Which of the processes associated with the water cycle might be responsible for helping to clean or filter the water? (Select TWO answers)

a)

Infiltration (also called percolation)

b)

Transpiration

c)

Precipitation

d)

Runoff

201.

Which processes of the water cycle gain energy? Select all that apply.

a)

condensation

b)

sublimation

c)

evaporation

d)

deposition

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