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WorksheetsClimate Change Unit Test
Total questions: 120
Worksheet time: 10hrs 0mins
Name
Class
Date
1.
Snow melts faster when it is compressed
a)
true
b)
false
2.
Snow melts faster when it is clean, with no sand in it
a)
true
b)
false
3.
Why is it important for scientists to know about physical properties of snow and how it melts?
a)
To predict how quickly a glacier will melt
b)
To learn about biology
c)
To learn about fossil fuels
4.
What is permafrost?
a)
Igneous Rock
b)
ground that stays frozen for over 2 years
c)
Tundra
d)
Iceberg
5.
What is happening to permafrost in Tuktoyaktuk?
a)
it is melting
b)
it is eroding
c)
all answers are correct
6.
What organic matter is trapped in permafrost?
a)
vibranium
b)
plutonium
c)
carbon
d)
helium
7.
What could happen if organic matter in permafrost decomposes?
a)
it could release greenhouse gases (carbon dioxide and methane)
b)
it will cool off the permafrost
c)
it will cause a tornado
d)
a tsunami will wipe out all life on earth
8.
How old can permafrost be in some areas
a)
1 day old
b)
thousands of years old
c)
older than jesus
d)
infinite in age
9.
Why are some roads in Yellowknife heaving and cracking?
a)
Fire
b)
Flooding
c)
Wind
d)
Permafrost melting disrupts the asphalt
10.
What has melting permafrost done to Tuktoyaktuk's infrastructure?
a)
buildings have been torn down or moved
b)
it has helped to stabilize soil
c)
he community has more coastal land to build on
d)
nothing, everything is fine
11.
What type of data collection method shows change over time?
a)
all answers
b)
tree ring sampling
c)
ice core sampling
d)
time lapse photography
12.
What is causing shipping channels in Tuktoyaktuk to become shallow?
a)
the sun's heat
b)
he moon's tidal influence
c)
sediment deposits from melting permafrost
d)
polar bears
13.
Bacteria, viruses and disease can be trapped in permafrost
a)
true
b)
false
14.
Earth's climate was ten degrees colder overall during the last ice age
a)
true
b)
false
15.
The last ice age was 3000 years ago
a)
true
b)
false
16.
What is a proxy record
a)
ice core
b)
tree ring
c)
fossil
d)
coral reef
e)
all answers are correct
17.
Ice cores contain bubbles. What do they tell scientists?
a)
what the atmosphere was like
b)
about how fossil fuels were made
c)
about how fossil fuels were made
d)
about the big bang
18.
What can tree rings tell us about the past?
a)
air temperature and moisture
b)
animal habitats
c)
algal blooms
d)
forest fires
19.
Fossilized pollen can help scientists tell what plants were alive. Where is it found?
a)
Ice cores
b)
Soil samples
c)
Tree rings
d)
Coral reefs
20.
What happens to sea level when glaciers on land melt?
a)
it rises
b)
it drops
c)
it stays the same
21.
What melts ice the fastest?
a)
Baking soda
b)
Beet brine
c)
Salt
d)
Sugar
22.
What is being used in some communities for de-icing roads to reduce salt damage to ecosystems?
a)
water
b)
beet brine
c)
epsom salts
d)
vinegar
23.
Why is road salt problematic?
a)
It corrodes vehicles, costing money
b)
Runoff makes it harder for life to thrive
c)
It is expensive to mine, store and transport
d)
all answers are correct
24.
What problems can occur if beet brine used on roads?
a)
foul odor
b)
sugar from beets can pollute environment and overfeed wildlife
c)
non aesthetic appearance
d)
all answers are correct
25.
What do dropstones tell us about the past?
a)
That volcanoes erupted
b)
Earth was covered in ice
c)
he atmosphere had CO2
d)
It was warm
26.
Earth's natural Thermostat is
a)
hydrostat
b)
heliostat
c)
thermohaline
d)
the carbon cycle
27.
What greenhouse gas is emitted by volcanoes over time?
a)
CO2 (carbon dioxide)
b)
H2O (water)
c)
O3 (ozone)
d)
CH4 (methane)
28.
True or False: Basalt can absorb Carbon Dioxide (CO2)
a)
true
b)
false
29.
What happens to the overall atmospheric temperature if CO2 is removed?
a)
It increases
b)
It decreases
c)
Nothing, it stays the same
30.
What planet cooling gas often starts off as a yellow solid substance?
a)
CO2 (carbon dioxide)
b)
CH4 (methane)
c)
SO2 (sulfur dioxide)
d)
NO2 (nitrogen dioxide)
31.
The Runaway Icehouse Effect causes the Earth to get warmer as more ice "grows"
a)
true
b)
false
c)
SHOW ANSWER
32.
During the Cryogenian Era, Earth is hypothesized to be almost completely frozen. How did it eventually melt?
a)
Human activity
b)
Volcanic Activity
c)
Ocean Currents
d)
Cyanobacteria
33.
What animal survived the Cryogenian Era?
a)
Sponges
b)
Baby Yoda
c)
Humans
d)
Articuno
34.
Ice ages followed a predictable schedule before humans started burning fossil fuels
a)
true
b)
false
35.
The tilt, wobble and shape of Earth's orbit remain constant over long periods of time
a)
TRUE
b)
false
36.
Bubbles in ice cores reveal ancient
a)
Plant life
b)
Atmospheric conditions
c)
Animal life
d)
Geology
37.
According to one theory, what could happen if glaciers melt and reduce the weight and pressure on volcanic areas?
a)
Volcanoes could increase in activity
b)
Volcanoes could decrease in activity
c)
Volcanoes would not be affected
38.
Could ice melting into the ocean affect ocean currents?
a)
Yes
b)
No
39.
What is the official name of the oceans' conveyor belt?
a)
Super Ocean 3000
b)
Hydra
c)
Poseidon
d)
Thermohaline Circulation
40.
What is the main factor responsible for movement of ocean water?
a)
density
b)
altitude
c)
latitude
d)
longitude
41.
Warm water has a higher density and sinks
a)
TRUE
b)
false
42.
Cold water has a higher density and sinks
a)
TRUE
b)
false
43.
What does salt do to water's density?
a)
Increases density
b)
Decreases density
44.
Where does the Gulf Stream "begin"?
a)
Gulf of Mexico (equator)
b)
Pacific Ocean
c)
Indian Ocean
d)
Lake Nipissing
45.
Where does the warm water of the Gulf Stream go?
a)
India
b)
Europe
c)
Australia
d)
Antarctica
46.
What would Europe's climate be like if the Gulf Stream did not exist?
a)
It would be colder
b)
It would be warmer
c)
It would stay the same
47.
What could happen to the Gulf Stream if Northern polar ice melts?
a)
Cold, fresh water could enter and change its direction or trajectory
b)
It could go faster
c)
It could go slower
48.
What is solar energy?
a)
Energy from the Sun in our solar system
b)
Energy from the moon
c)
Energy from other stars
49.
Radiation travels in waves of different sizes
a)
TRUE
b)
false
50.
Ultraviolet, Infrared and Visible light waves are forms of
a)
Solar radiation
b)
Sound
c)
Gravity
51.
Ultraviolet light (UV) does not penetrate skin
a)
TRUE
b)
false
52.
What is a major component in a region's climate?
a)
How much solar energy it receives
b)
Culture
c)
Technology
d)
Language
53.
Latitude is measured in degrees as north and south of the Equator
a)
TRUE
b)
false
54.
At latitudes near the Equator, solar energy hits earth on a large angle, scattering the sun's rays and heat
a)
TRUE
b)
false
55.
During summer, Northern Ontario is tilted away from the sun.
a)
TRUE
b)
false
56.
During winter, Northern Ontario is tilted away from the sun.
a)
TRUE
b)
false
57.
What is the most important astronomical factor in seasonal changes?
a)
Earth's tilt
b)
The distance Earth is from the Sun
58.
What happens when solar energy reaches the Earth?
a)
It is reflected or absorbed
b)
Nothing
59.
70 Percent of solar energy is reflected by clouds
a)
TRUE
b)
false
60.
What absorbs most of the sun's radiation?
a)
clouds
b)
land and water
c)
the atmosphere
61.
A heat sink ______________ thermal energy
a)
stores
b)
releases
62.
Our closest heat sink is
a)
In the kitchen
b)
Leisure Farms
c)
The Chip Stands
d)
Lake Nipissing
63.
Some thermal energy can be radiated back into space as infrared radiation.
a)
TRUE
b)
false
64.
If energy in=energy out, Earth's average temperature________
a)
changes
b)
stays relatively constant
65.
Why do you get warmer when wearing dark clothing than with light clothing?
a)
Dark clothing reflects light
b)
Dark clothing absorbs light
c)
White clothing absorbs light
66.
The proportion of the sun's radiation that is reflected by a surface is called
a)
Carbon cycle
b)
Heat Sink
c)
thermohaline
d)
Albedo
67.
Surfaces with ___________albedo relfect more light than surfaces with _____________ albedo
a)
low, high
b)
low, low
c)
high, low
d)
high, high
68.
What has a higher albedo? Clouds or Forests?
a)
Clouds
b)
Forests
69.
What happens to Earth's overall albedo as ice melts
a)
It increases
b)
It decreases
c)
it stays the same
70.
What does lower albedo do to the average temperature?
a)
It increases it
b)
it decreases it
c)
it stays the same
71.
As ice melts, does other ice melt slower or faster
a)
slower
b)
faster
c)
Nothing, it stays the same
72.
If volcanic activity puts enough ash into the air, light is reflected from the sun. What could this do to the surface temperature?
a)
Increase it
b)
decrease it
c)
Nothing, it stays the same
73.
What was the year called when Mt. Tambora erupted?
a)
The year of long summer
b)
The year of no summer
c)
The year of fall
d)
The year of spring
74.
According to NASA satellite data, What decade did sea ice never return completely to Alaska?
a)
1960s
b)
1970s
c)
1980s
d)
1990s
75.
What minimum rise in sea level will flood New Orleans?
a)
1m
b)
2m
c)
3m
d)
4m
76.
What minimum rise in sea level will flood Miami?
a)
1m
b)
2m
c)
3m
d)
4m
77.
Why would there be less CO2 in the southern hemisphere?
a)
more people
b)
more industry
c)
warmer temperatures
d)
less pollution from low population
78.
Why are sea temperatures near Greenland be colder than average?
a)
more salt in the water
b)
melting glaciers
c)
Ocean Currents
d)
Thermohaline Circulation
79.
What acts as a blanket to keep Earth warm?
a)
the crust
b)
the ocean
c)
the mantle
d)
the atmosphere
80.
Without the greenhouse effect, Earth would be ___________ than it is now.
a)
colder
b)
warmer
c)
the same
81.
Today's Carbon levels in the atmosphere are about
a)
100ppm
b)
200ppm
c)
300ppm
d)
400+ppm
82.
What natural process emits CO2
a)
forest fires
b)
cellular respiration
c)
volcanic emissions
d)
all answers are correct
83.
Human activities that release CO2 include
a)
burning coal
b)
burning oil
c)
burning natural gas
d)
all answers are correct
84.
Photosynthesis emits CO2
a)
TRUE
b)
false
85.
A forest is an effective
a)
heat sink
b)
carbon sink
c)
all answers are correct
86.
An ocean is an effective
a)
heat sink
b)
carbon sink
c)
all answers are correct
87.
As Earth's temperature ____________, more of Earth's water becomes vapor.
a)
drops
b)
rises
88.
Water vapor releases ____________, which increases the temperature of the Earth.
a)
CO2 (carbon dioxide)
b)
electricity
c)
thermal energy
89.
Water is a ___________ heat sink than air
a)
more effective
b)
less effective
90.
When air is cooler than the water, thermal energy is ______________ into the air.
a)
released
b)
absorbed
91.
Climates of regions near the Ocean are ___________in the summer than inland regions.
a)
warmer
b)
cooler
92.
Climates of regions near the Ocean are ___________in the winter than inland regions.
a)
warmer
b)
cooler
93.
Radiation, conduction and convection are types of thermal energy transfer
a)
TRUE
b)
false
94.
Winds and ocean currents __________ energy
a)
store
b)
transfer
95.
Earth's thermal energy circulates through the
a)
thermosphere
b)
hydrosphere
c)
all answers are correct
96.
As warm fluid rises, cold fluid
a)
rises
b)
sinks
c)
stays the same
97.
The circular movement of heat due to temperature, density and pressure change is called
a)
conduction
b)
radiation
c)
convection
98.
How does warm air make it to the poles?
a)
geothermal energy
b)
wind carries heat from the equator
c)
the sun's rays are more direct at the poles
99.
Prevailing/global winds are surface winds that result from ______________ currents.
a)
conduction
b)
radiation
c)
convection
100.
What happens when wind picks up water vapor from a body of water and ends up near land?
a)
it is dry
b)
it rains
101.
What brings cold air to us from the North?
a)
water
b)
wind
c)
geothermal energy
102.
As land areas move due to tectonic activity, ocean currents
a)
changes
b)
stay the same
103.
The northern hemisphere has the _______________ land mass, which causes it to have cold winters and hot summers.
a)
greatest
b)
smallest
104.
Mountain ranges do not affect local or regional climates
a)
TRUE
b)
false
105.
Mt. Pinatubo's release of sulfur dioxide in 1991 caused the globe's temperature to
a)
increase
b)
decrease
106.
El Nino _____________ ocean currents, which affects climate.
a)
changes
b)
speeds up
c)
does nothing to
d)
slows down
107.
During the last 200 years, atmospheric concentrations of CO2 have
a)
increased
b)
decreased
c)
stayed constant
108.
The recent increase is caused mostly by
a)
natural factors
b)
human activity
109.
Anthropogenic means
a)
animal-made
b)
human-made
c)
sun-made
110.
Where do fossil fuels come from?
a)
water
b)
air
c)
underground
111.
When did CO2 start to rise dramatically?
a)
2000 BC
b)
1500s
c)
1700s
d)
1800s
112.
Deforestation _______________ CO2
a)
increases
b)
decreases
c)
does nothing to
113.
Methane comes from
a)
landfills
b)
agriculture
c)
natural gas
d)
all answers are correct
114.
Nitrous oxide comes from
a)
water
b)
fertilizer
c)
cattle
d)
trees
115.
CFCs are allowed to be used today
a)
TRUE
b)
false
116.
Canadians have a ___________ carbon footprint on average than people who live near the equators
a)
larger
b)
smaller
c)
equal
117.
As humans release more carbon into the atmosphere, Earth's temperature _______________
a)
changes
b)
stays the same
118.
The largest source of greenhouse gases in Canada is
a)
mining/manufacturing
b)
buildings
c)
agriculture
d)
transportation
119.
Methane is _________powerful than CO2
a)
more
b)
less
c)
just as
120.
What is a major source of methane in agriculture?
a)
soil
b)
fertilizer
c)
tractors
d)
cow farts
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