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WorksheetsHydrosphere
Total questions: 83
Worksheet time: 55mins
Name
Class
Date
1.
Scientist analyzed water collected from a lake north of Sanford. They found a significant decrease in dissolved oxygen. Which most likely caused the decline?
a)
An increase in minerals from a nearby mine.
b)
An increase in algae growth caused by fertilizer runoff from a nearby farm.
c)
An increase in sediment caused by construction of a new house nearby.
d)
A decrease in the fish population caused by over fishing.
2.
Pure water is neutral. If water is neither an acid nor a base, what is the pH of water?
a)
0
b)
5
c)
7
d)
9
3.
The Earth is _____ saltwater and _____ freshwater.
a)
75%, 25%
b)
97%, 3%
c)
50%, 50%
d)
25%, 50%
4.
Most of the freshwater on Earth is ________.
a)
frozen
b)
underground
c)
flowing
d)
polluted
5.
_____ are large deposits of groundwater that can be extracted and used.
a)
Estuaries
b)
Aquifers
c)
Rivers
d)
Oceans
6.
Cohesion is __________________________.
a)
the ability of water to cling to another substance
b)
the ability to move through and around a substance
c)
the ability of a water particle to cling to another particle of water
d)
None of the above
7.
Which would most likely cause diseases to be spread by polluted water?
a)
runoff that contains fertilizers and pesticides
b)
dumping human waste into rivers and streams
c)
runoff from a parking lot
d)
an oil spill resulting from an accident to a ship carrying oil as cargo
8.
Water heats up and cools down slower than soil or metal. This means that water has a higher ________________ than land.
a)
turbidity
b)
dissolved oxygen level
c)
nitrate absorbency level
d)
specific heat
9.
Why does ice float?
a)
It is less dense than in liquid form.
b)
It is more dense than in liquid form.
c)
It has more surface tension
d)
None of the above
10.
A water strider can skate along the top of a pond because:
a)
covalent bonds result in water cohesion.
b)
hydrogen bonds result in water cohesion (surface tension).
c)
water striders have adapted to take advantage of water cohesion.
d)
low surface tension of water.
11.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
12.
Attractions between water molecules are caused by ______________________.
a)
covalent bonds
b)
ionic bonds
c)
polar bonds
d)
hydrogen bonds
13.
What property of water helps to moderate Earth's temperature?
a)
adhesion
b)
cohesion
c)
specific heat capacity
d)
latent heat of vaporization
14.
What two elements make up water?
a)
helium and oxygen
b)
hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
15.
Which word describes the tendency of molecules of the same kind to stick to one another?
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
16.
Which word describes the molecule in which opposite ends have opposite electric charges?
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
17.
Why does ice float?
a)
As water freezes, it expands and its density decreases.
b)
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
c)
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
d)
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
18.
To which condition do all species living at deep ocean depths have to adapt?
a)
hot water temperature
b)
swift ocean currents
c)
extreme pressure
d)
lower salinity
19.
Your class took four samples of drinking water from fountains at East Lee Middle School. Three out of the four were within EPA limits for presence of metals in the water. Is the water at East Lee Middle School safe to drink?
a)
Yes
b)
No
20.
This happens when water drains from the surface of the Earth to rivers, lakes, streams, ponds, etc.
a)
evaporation
b)
runoff
c)
gravity
Cycle
Cycle
d)
rapid
21.
In our world's water supply, what area has the MOST water?
a)
glaciers & ice sheets
b)
oceans
c)
ground water
d)
lakes
22.
Which term best describes the flow of water over land?
a)
runoff
b)
precipitation
c)
transpiration
d)
condensation
23.
What is the source of energy that makes the water cycle work?
a)
electricity
b)
the sun
c)
wind
d)
thunder
24.
What is the relationship between the population of a city and the availability of water?
a)
As population increases, water available decreases
b)
As population increases, water availability increases
c)
As population decreases, water availability decrease
25.
Dissolved oxygen is defined as __________________________.
a)
a measure of how clear water is.
b)
a fertilizer containing phosphorus compounds.
c)
the amount of oxygen gas that is present in the water.
26.
Thermal is defined as ___________.
a)
heat
b)
land
c)
water
d)
density
27.
Turbidity is defined as __________________________.
a)
a measure of how acidic or basic a liquid is
b)
a chemical that includes nitrogen and oxygen, often used as a fertilizer
c)
a measure of how clear water is.
28.
pH is defined as ___________________.
a)
An organism used to monitor the the health of an ecosystem.
b)
amount of oxygen that is present in the water.
c)
a measure of how acidic or how basic a liquid is.
29.
Bioindicators show signs of _____________.
a)
A measure of how acidic or how how basic a liquid is.
b)
An organism used to monitor the the health of an ecosystem.
c)
how much dissolved oxygen will be absorbed in the water.
30.
The definition of wetland is __________________________.
a)
an area where a river flows into the ocean (fresh and salt water mix)
b)
land that has a wet and spongy soil, as a marsh, swamp, or bog
c)
water that is slightly salty.
d)
a process in which deep, cold water rises toward the surface
31.
The definition of upwelling is __________________.
a)
a wide variety of plants and animals that live in an estuary.
b)
the measure of how salty water is.
c)
a process in which deep, cold water rises toward the surface.
d)
the speed at which water flows.
32.
The definition of brackish is ______________.
a)
water that is slightly salty.
b)
an area of land drained by a river and its branches (streams and creeks).
c)
the measure of how salty water is.
d)
a wide variety of plants and animals that live in an estuary.
33.
The definition of estuary is __________.
a)
a wide variety of plants and animals live in an estuary.
b)
an area of land drained by a river and its branches (streams and creeks).
c)
a process in which deep, cold water rises toward the surface.
d)
an area where a river flows into the ocean (fresh and salt water mix).
34.
Th definition of salinity is ________________.
a)
the measure of how salty water is.
b)
the speed at which water flows.
c)
water that is slightly salty.
d)
a process in which deep, cold water rises toward the surface.
35.
The definition of diversity is _______________.
a)
the speed at which water flows.
b)
the wide variety of plants and animals living in an ecosystem.
c)
a process in which deep, cold water rises toward the surface.
d)
the measure of how salty water is.
36.
The definition of watershed is ______________.
a)
land that has a wet and spongy soil, as a marsh, swamp, or bog.
b)
an area of land drained by streams that flow into a bigger river.
c)
an area where a river flows into the ocean (fresh and salt water mix).
d)
land that has a wet and spongy soil, as a marsh, swamp, or bog.
37.
The definition of river basin is ____________.
a)
an large area of land drained by a river and its branches (streams and creeks).
b)
a process in which deep, cold water rises toward the surface.
c)
an area of land drained by streams that flow into a bigger river.
d)
the speed at which water flows.
38.
Potable water is _________________.
a)
something that makes water no longer suitable for use.
b)
a single identifiable source of pollution.
c)
water that is safe to drink.
39.
Contaminant is ______________.
a)
a change to a solid state.
b)
something that makes water no longer suitable for use.
c)
pollution that comes from many sources.
40.
Point-source pollution is __________________.
a)
loosely clumped masses of fine particles.
b)
pollution that comes from many sources.
c)
a single identifiable source of pollution.
41.
Nonpoint-source pollution is __________________.
a)
pollution that comes from many sources.
b)
a single identifiable source of pollution.
c)
the process of removing something unwanted from a liquid or gas by using a filter.
42.
Filtration
a)
process of removing something unwanted from a liquid or gas using a filter
b)
natural process in which material is carried to the bottom of water and forms a solid layer
c)
loosely clumped masses of fine particles
43.
Flocs
a)
groups of birds
b)
loosely clumped masses of fine particles
c)
change to a solid state
44.
Sedimentation
a)
the natural process in which materials are carried to the bottom of water and forms a solid layer
b)
the process of removing something unwanted from a liquid or gas by using a filter
c)
water that is safe to drink
45.
Coagulation
a)
the process of removing something unwanted from a liquid or gas by using a filter
b)
loosely clumped masses of fine particles
c)
change to a solid state
46.
Areas where salt and freshwater meet.
a)
estuary
b)
river basin
c)
ocean
d)
aquifer
47.
Which pH would a freshwater fish prefer in the Cape Fear River?
a)
5.5
b)
6.1
c)
7.2
d)
8.3
48.
_____ water may not contain enough dissolved oxygen for organisms to survive.
a)
Warm
b)
Cold
c)
Salt
d)
Fresh
49.
This is a measure of how much oxygen gas there is in water.
a)
dissolved oxygen
b)
turbidity
c)
pH
d)
nitrates
50.
This is a measure of how acidic or how basic water is.
a)
dissolved oxygen
b)
pH
c)
turbidity
d)
nitrates
51.
Nitrates usually get into water from agricultural runoff. Too much can cause:
a)
eutrophication
b)
turbidity
c)
upwelling
d)
water to warm up
52.
This is a measure of how clear the water is.
a)
turbidity
b)
pH
c)
dissolved oxygen
d)
nitrates
53.
Which of these is a bioindicator?
a)
insect
b)
pH
c)
dissolved oxygen
d)
sediment
54.
_____ are large deposits of groundwater that can be extracted and used.
a)
Estuaries
b)
Aquifer
c)
Rivers
d)
Oceans
55.
An example of this pollution is a factory dumping nuclear waste into a river.
a)
point source
b)
nonpoint source
c)
ancillary
d)
illegal
56.
An example of this type of pollution is agricultural runoff.
a)
nonpoint-source
b)
point-source
c)
ancillary
d)
illegal
57.
As you move from the open ocean to the deep ocean, the amount of _____ decreases
a)
sunlight
b)
pressure
c)
fish
d)
salt
58.
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
59.
What is permeability?
a)
The amount of days in between a llama cycle.
b)
The water underground
c)
The water between particles
d)
The amount of space between particles allowing water to go through
60.
What are the 3 types of wetlands?
a)
swamp, ocean, river
b)
pond, river, marsh
c)
marsh, marsh, marsh
d)
swamp, marsh, bog
61.
What kind of water is in an estuary?
a)
brackish
b)
spring
c)
salt
d)
fresh
62.
An area of land that drains into a body of water.
a)
mouth
b)
point-source pollution
c)
watershed
d)
headwaters
63.
A new golf course is built next to a river. Over the past several months,
the nitrate levels of the water in the river have been increasing. Which
best explains the cause of the increasing nitrate levels?
the nitrate levels of the water in the river have been increasing. Which
best explains the cause of the increasing nitrate levels?
a)
increased growth of algae
b)
decreased biodiversity
c)
runoff from fertilizer
64.
What is the alternating rise and fall in sea level with respect to the land, produced by the gravitational attraction of the moon and the sun?
a)
tides
b)
waves
c)
currents
d)
flows
65.
What is one way you can conserve water?
a)
take shorter showers
b)
drink a lot of water
c)
water your lawn daily
d)
keep your faucet running
66.
What is water pollution?
a)
water being contaminated with pollutants
b)
when you get water dirty
c)
when fish over populate a lake
d)
when your water tastes bad
67.
Which will result if there is increased upwelling in a coastal area?
a)
more aquatic life
b)
less nutrients in the water
c)
higher water temperatures
d)
fewer nitrates
68.
Which best describes characteristics of a river basin?
a)
the land drained by a river and its tributaries
b)
the land formed when rivers create estuaries and marshes
c)
the land at the mouth of a river where water flows into the ocean
d)
the land formed as a result of a river flooding
69.
Which contributes most in supporting life on the deep ocean floor?
a)
cold water temperatures
b)
extreme water pressure
c)
hydrothermal vents
d)
lack of predators
70.
Which factors limit the productivity of a marine ecosystem?
a)
availability of light and nutrients
b)
availability of nutrients and fresh water
c)
availability of light and chemosynthetic organisms
d)
availability of photosynthetic organisms and fresh water
71.
Which is the effect of too much nitrogen and phosphorus in a lake?
a)
algal blooms
b)
greater salinity
c)
decreased turbidity
d)
lower temperature
72.
The place where new ocean floor forms is called the...
a)
mid ocean ridge
b)
abyssal plain
c)
trench
d)
continental shelf
73.
What does chlorination do to the water?
a)
removes microorganisms
b)
cleans the water
c)
makes the water taste nice
d)
removes twigs and sediment
74.
What would happen to ocean water if ice caps and glaciers melted?
a)
More saltwater would enter the ocean.
b)
More freshwater would enter the ocean
c)
More salt and freshwater would enter the ocean
75.
Which is most likely the largest contributor to a decrease in North Carolina’s water availability?
a)
evaporation
b)
global warming
c)
increase in population
d)
expansion of agricultural areas
76.
Which would be the best way for humans to conserve large amounts of water during a drought (NO rain)?
a)
install high-flow toilets
b)
bathe only once a week
c)
limit drinking water in restaurants
d)
limit use of outdoor sprinkler systems
77.
Which is true about most of the freshwater on Earth?
a)
It is abundant.
b)
It is inaccessible (can't get to it) or frozen.
c)
It is underground.
d)
It is in the atmosphere.
78.
The best way to study tonight would be _______________.
a)
Play with my xBox One.
b)
Watch television.
c)
Snap Chat my friend until midnight.
d)
Read over my Cornell notes.
79.
The hydrosphere test will be taken __________________.
a)
tomorrow
b)
Friday
c)
next week
d)
next month
80.
When an algal bloom occurs, what happens to other organisms living in that part of the water?
a)
They experience an increase in population size.
b)
They find a variety food sources more easily.
c)
They experience stress due to a decrease in DO levels.
d)
They thrive due to an increase in sunlight.
81.
You notice a lot of dead fish on the shore of a lake during a hot summer day. The water looks clean. The area has experienced record heat for the last two weeks. What maybe the cause of the dead fish?
a)
low DO level
b)
high DO level
c)
low carbon dioxide level
d)
high carbon dioxide level
82.
You have heard of three people on your street that have gone to the hospital for liver problems. What might be the source of the liver problems?
a)
nitrate contaminants above the EPA limits in the drinking water
b)
metal contaminants above the EPA limits in the drinking water
c)
herbicide contaminants above the EPA limits in the drinking water
d)
bacteria contaminants above the EPA limits in the drinking water
83.
Which is best for your drinking water?
a)
high turbidity
b)
low DO
c)
high nitrates
d)
low turbidity
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