8 Science
Exam Review
Page 1 of 7
Unit 1
NAME: _________________________
 CIRCLE YOUR ANSWERS ON THE RESPONSE SHEET.
1) There are five major oceans in the world. Which one is made up of the southern
sections of three of the oceans?
A) Arctic ocean
B) Indian ocean
C) Pacific ocean
D) Southern ocean
2) Of the five major oceans in the world, which one is situated around the island of
Newfoundland?
A) Arctic ocean
B) Atlantic ocean
C) Indian ocean
D) Pacific ocean
3) What name is given to the mass of land that is thought to once make up all of the
continents 200 million years ago?
A) Antarctica
B) El niño
C) Pangea
D) Panthallassa
4) Which statement is part of the theory about how water first formed on Earth?
A) It rained for at least 10 years.
B) The glaciers on the North and South poles melted.
C) Volcanoes erupted, putting water vapour into the air.
D) Water came up from underground springs.
5) What is the effect of El Niño in Peru?
A) It prevents the water cycle from occurring.
B) It prevents upwelling from occurring.
C) It causes changes in plate tectonics.
D) It causes the spinning of the Earth to change direction.
6) Surface currents in the ocean are defined by how deep they go in the ocean. About
how deep do we say surface currents go?
A) About 20 meters deep
B) About 200 meters deep
C) About 2000 meters deep
D) About 4 kilometers deep
7) Which technology uses sound waves to map the ocean floor?
A) Manned deep-sea submersibles
B) Satellites
C) Sonar
D) Underwater robots
8) Which factor does NOT have an effect on deep water currents?
A) Salinity
B) Temperature
C) Upwelling
D) Wind
9) Which layer of the ocean experiences large differences in temperature (from
about 30 °C to 5°C)?
A) Deep ocean
B) Mixed layer
C) Ocean floor
D) Thermocline
8 Science
Exam Review
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Unit 1
10) Which word describes a vertical movement of cold water from the ocean floor to
the ocean surface?
A) Coriolis Effect
B) El Niño
C) Thermocline
D) Upwelling
11) What is the name of the process in which the crustal plates of the Earth slowly
move?
A) Global warming
B) Plate tectonics
C) Upwelling
D) Water cycle
12) Which landform divides drainage basins?
A) Abyssal plains
B) Mountain chains
C) Ocean ridges
D) Ocean trenches
13) Which event is a result of the spinning of the Earth on its axis?
A) Global warming
B) Plate tectonics
C) The Coriolis effect
D) Upwelling
14) We have compared ocean water to fresh water. Which statement is TRUE?
A) Fresh water has a higher salinity than ocean water.
B) Fresh water and ocean water have the same freezing point.
C) Ocean water has a higher freezing point than fresh water.
D) Ocean water is more dense than fresh water.
15) What is the freezing point of ocean water?
A) Zero degrees Celsius
B) Less than zero degrees Celsius
C) 100 degrees Celsius
D) More than 100 degrees Celsius
16) Which statement describes the Earth’s lithosphere?
A) It is the solid, rocky ground of the Earth’s crust.
B) It is the environment surrounding the planet.
C) It is all the weather on Earth.
D) It is all of the air on Earth.
17) Where is most of the world’s fresh water found?
A) In ice and glaciers at the North and South Poles.
B) In the air as water vapour.
C) In the five Great Lakes.
D) In underground water wells.
18) What is the process called in which water changes from a GAS to a LIQUID in the
water cycle?
A) Condensation
B) Evaporation
C) Precipitation
D) Run-off
19) Which description demonstrates the process of evaporation?
A) After wiping the floor with a wet mop, the floor is dry an hour later.
B) There is dew on the grass early in the morning.
C) You can see your breath on the window on a cold day.
D) Your eyeglasses “steam up” when you come inside on a cold day.
8 Science
Exam Review
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Unit 1
20) In the diagram shown below, what process is occurring at point “X”?
A)
B)
C)
D)
Condensation
Evaporation
Precipitation
El Niño
21) Which has the highest density?
A) 1 liter of ocean water
B) 10 liters of pond water
C) 100 liters of tap water
D) 1000 liters of rain water
22) Why statement is TRUE about oceans in warm, tropical areas?
A) They have high salinity
B) They have high amounts of glacier run-off
C) They have low amounts of evaporation
D) They have low concentrations of salt.
23) Which of Canada’s drainage basins contains Newfoundland and Labrador?
A) Arctic
B) Atlantic
C) Pacific
D) Mississippi
24) Which area will experience the LEAST amount of run-off?
A) A steeply sloped hill
B) A flat area with many trees and deep soil
C) The paved parking lot at the mall in Grand Bay
D) The gravel parking lot next to Coleman’s grocery store downtown
25) Which letter represents the Atlantic Ocean in the diagram of the world below?
A)
B)
C)
D)
A
B
C
D
26) What is the name of the largest oceanic ridge on Earth?
A) The Continental Ridge
B) The El Niño Ridge
C) The Marianas Ridge
D) The Mid-Atlantic Ridge
27) Which factor has NO effect on surface currents?
A) Coriolis effect
B) Shape of continents
C) Underwater volcanic eruptions
D) Wind
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Exam Review
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Unit 1
28) The following is a diagram of an ocean basin. Which letter represents the
continental slope?
A)
B)
C)
D)
A
B
C
D
29) The diagram below shows surface winds blowing water away from the land. This
allows cold, deep water to rise up from below to replace the surface water that has
moved out to sea. What is this process called?
A)
B)
C)
D)
Convection
El Niño
La Niña
Upwelling
30) Which is true of the Labrador current concerning its temperature and it’s direction
of flow towards Newfoundland?
TEMPERATURE
DIRECTION OF FLOW
A)
Cold
From the Arctic towards Newfoundland
B)
Cold
From the South towards Newfoundland
C)
Warm
From the Arctic towards Newfoundland
D)
Warm
From the South towards Newfoundland
31) What do we call a wave that collapses onshore in a tumble of water?
A) Breaker
B) Swell
C) Tide
D) Tsunami
32) Which letter in the diagram of the wave represents the wavelength?
A)
B)
C)
D)
A
B
C
D
33) What happens to the movement of a wave as it approaches the shore?
A)
B)
C)
WAVELENGTH
Decreases
Decreases
Increases
Increases
WAVE HEIGHT
Decreases
Increases
Increases
Decreases
8 Science
Exam Review
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Unit 1
34) Which can cause tsunamis?
A) Earthquakes and volcanoes
B) Earthquakes and wind
C) Landslides and wind
D) El Niño and La Niña
35) Which is correct in describing the features of a wave?
A) The crest is the highest point and the trough is the lowest point.
B) The trough is the highest point and the crest is the lowest point.
C) The wavelength is always longer than the wave height.
D) The wave height is always longer than the wavelength.
36) What are smooth waves on the ocean called?
A) Swells
B) Breakers
C) Troughs
D) Tsunamis
37) When do the largest tidal movements occur?
A) During spring tide
B) During neap tide
C) When the Sun, the Moon, and the Earth are at right angles to each other.
D) Tidal movements are always the same
38) What is the link between the Earth, the Moon, the Sun, and tides?
A) El Niño
B) Gravity
C) La Niña
D) Wind
39) What is the definition of tidal range?
A) The difference in level between high tide and low tide
B) The difference in level between spring tide and neap tide
C) The difference in level between tides in the summer and tides in the winter
D) The difference in level between tides on the Moon and tides on Earth
40) What is TRUE about the specific heat capacity of water?
A) Water takes a long time to heat up, and also releases heat quite slowly.
B) Water heats up very fast, and cools down very fast.
C) Water heats up faster than the land.
D) Water cools off faster than the land.
41) Where is most of the ocean’s pollution found?
A) In the Atlantic ocean
B) In the Sargasso Sea
C) On the coastlines of the continents
D) On the ocean floor
42) Which letter in the diagram below indicates a warm current that affects the island of
Newfoundland?
A)
B)
C)
D)
A
B
C
D
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Exam Review
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Unit 1
43) Why does Britain have a mild climate and Hudson Bay have a cool climate even
though they are the same distance from the equator?
A) Because Hudson Bay experiences a larger tidal range than Britain
B) Because Hudson Bay experiences spring tides and Britain experiences neap
tides.
C) Because Hudson Bay experiences the Labrador Current and Britain experiences
the Gulf Stream
D) Because Hudson Bay experiences less sunlight than Britain does
44) Which is a non-point source of pollution?
A) Oil that has leaked from cars and trucks on the highway
B) Sewage systems from buildings
C) Spills from furnace oil tanks next to your house
D) Underground storage containers for gas stations
45) What is responsible for causing droughts in Australia and Indonesia (where it is
normally wet), and floods in Peru (where it is normally dry)?
A) El Niño
B) La Niña
C) Tsunamis
D) Hurricanes
46) Where does most of the oil that ends up in the ocean come from?
A) Untreated waste from homes and industry
B) Oil spills from offshore oil rigs
C) Oil spills from ocean oil tankers
D) Ships cleaning out their bilge compartments
47) Why is seismic testing for oil a concern for ocean scientists?
A) Because it costs a lot of money
B) Because it destroys fish eggs
C) Because it takes so much time to do
D) Because it causes so much pollution
48) Consider the diagram:
Which statement is true concerning the Gulf of Mexico?
A) It has a large tidal range because water flows in slowly.
B) It has a large tidal range because water flows in quickly.
C) It has a small tidal range because water flows in slowly.
D) It has a small tidal range because water flows in quickly.
49) Which statement explains why acid rain may fall in a lake far from any cities?
A) It was a result of a oil spill in the lake.
B) It was brought by an invasive species.
C) It was carried by wind.
D) It was from a point source of pollution in the lake.
50) Which term describes the growing and harvesting of a marine (ocean) species in a
controlled area?
A) Acid precipitation
B) Aquaculture
C) Overfishing
D) Seismic testing
8 Science
Exam Review
Page 7 of 7
Unit 1
RESPONSE SHEET FOR MULTIPLE CHOICE
NAME: _____________________________
 CIRCLE YOUR RESPONSES CLEARLY.
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