WorksheetsOceanic and Atmospheric Movement
Total questions: 29
Worksheet time: 39mins
Which of the following best describes the primary driving force behind most ocean surface currents?
Differences in water density
Prevailing winds
Underwater volcanic activity
Evaporation from polar ice caps
Oceanic and atmospheric circulation patterns are primarily influenced by which two main energy sources?
Wind and magnetism from Earth’s core
Solar radiation and geothermal heat
Gravitational pull of the Moon and Mars
Tides and atmospheric pressure changes
Thermohaline circulation is driven by differences in:
Tidal forces and waves
Water temperature and salinity
Atmospheric pressure and precipitation
Seafloor spreading and plate boundaries
Which of the following is true about thermohaline circulation?
It occurs only in the Pacific Ocean
It is confined to surface currents
It helps transport heat and nutrients around the globe
It completely stops during El Niño events
The Coriolis Effect causes moving objects such as air or water to deflect:
To the east in the Northern Hemisphere and west in the Southern Hemisphere
To the west in the Northern Hemisphere and east in the Southern Hemisphere
To the right in the Northern Hemisphere and to the left in the Southern Hemisphere
To the left in both hemispheres
Global winds that blow from the east toward the west near the equator are called:
Westerlies
Trade winds
Polar easterlies
Doldrums
Why is the Coriolis Effect stronger at higher latitudes?
Air density is greater near the poles
The Earth’s circumference is smaller toward the poles
There is more landmass in the polar regions
The oceans near the poles flow more slowly
Which of the following is characteristic of El Niño conditions in the Pacific?
Strengthened trade winds
Cooler-than-average sea surface temperatures near South America
Warmer-than-average sea surface temperatures near South America
Increased precipitation in eastern Asia
Upwelling is the process by which:
Warm surface water moves poleward
Deep, nutrient-rich water rises to the surface
Surface water evaporates to form clouds
Coastal areas lose nutrients due to strong winds
During an El Niño event, the typical pattern of upwelling along the coast of South America:
Increases, improving fishing
Is unaffected by changing winds
Diminishes, impacting marine life
Only influences Australia
Which statement accurately describes La Niña?
A warming of Pacific Ocean surface waters near South America
A cooling of Pacific Ocean surface waters near South America
No significant change in sea surface temperatures
A period of increased volcanic activity in the Pacific
Hurricanes in the Northern Hemisphere rotate:
Clockwise due to the Coriolis Effect
Counterclockwise due to the Coriolis Effect
Clockwise due to strong westerly winds
Counterclockwise due to trade winds
Which of the following conditions is necessary for hurricane formation?
Cold sea surface temperatures
Stable atmospheric conditions
Warm ocean waters of at least 26.5°C (80°F)
Dry continental air masses
Hurricanes typically weaken once they move over land because:
They lose access to warm ocean water
The Coriolis Effect ceases over land
Inland areas always have lower humidity
Atmospheric pressure is higher at sea level
In which region are tropical cyclones referred to as “typhoons”?
North Atlantic
Eastern North Pacific
Western North Pacific
South Atlantic
What is the primary cause of ocean tides on Earth?
Earth's rotation
Wind patterns
Gravitational pull of the Moon
Gravitational pull of the Sun
Which phenomenon is characterized by a periodic warming of sea surface temperatures in the central and eastern Pacific Ocean?
Gulf Stream
La Niña
El Niño
Monsoon
What is the main reason for the seasonal changes in Earth's weather patterns?
Earth's axial tilt
Solar flares
Ocean currents
Earth's distance from the Sun
What is this current's name?
North Pacific
Gulf Stream
South Pacific
Antarctic
What do the arrows' direction represent in this graph?
The temperature of the land
The temperature of the wind
The direction the ocean currents
The direction that the sun's energy hits the Earth
A large rotating ocean current is called a:
tsunami
gyre
wave
swell
The ocean current that hits California brings
colder than average water currents
warmer than average water currents
currents of the same temperature
What affects the density of water?
Salt
Temperature
The seasons of the year
Both A and B
Answer two questions briefly in a few sentences or a short paragraph.
Hurricanes & ENSO: During an El Niño year, the Atlantic hurricane season can be influenced by increased wind shear in the upper atmosphere. Explain how changes in atmospheric wind patterns during El Niño might impact hurricane formation in the Atlantic.
Hurricanes & Upwelling: Coastal upwelling brings cold, nutrient-rich water to the surface. Predict how these cooler surface waters near a coastline might affect the intensity of a hurricane approaching that region.
Hurricanes & Coriolis Effect: Explain why tropical storms cannot form very close to the equator, referencing the Coriolis Effect in your answer.
Thermohaline Circulation & Climate: Describe one way that thermohaline circulation can affect regional climate, giving a specific real-world example (e.g., the Gulf Stream’s impact on northwestern Europe).
ENSO Impact: During a strong El Niño event, Peruvian fishermen often experience lower fish catches. Explain why this occurs in terms of ocean temperature and nutrient availability.
Global Winds & Weather Patterns: Describe how prevailing wind patterns (such as the trade winds) can contribute to desert formation at specific latitudes around the globe.
Real-World Hurricane Scenario: Imagine a Category 3 hurricane is projected to make landfall in a coastal city. List two immediate safety preparations local authorities and residents might take, and explain briefly why each is critical.
28-37.
Answer the questions below after watching the video
What is the minimum ocean temperature required for hurricane formation?
82 degrees Fahrenheit
90 degrees Fahrenheit
65 degrees Celsius
75 degrees Fahrenheit
At what wind speed does a tropical storm escalate to a hurricane?
39 miles per hour
74 miles per hour
50 miles per hour
65 miles per hour
What is the calm center of a hurricane called?
The Eye
The Center
The Vortex
The Core
How many hurricanes typically strike the mainland of North America each year?
Four to five
Three to four
Two to three
One to two
What is the most dangerous aspect of a hurricane when it makes landfall?
Storm surge
High winds
Lightning
Heavy rainfall
Which hurricane was the most expensive natural disaster in US history up to 1992?
Hurricane Harvey
Hurricane Katrina
Hurricane Sandy
Hurricane Andrew
What technology do scientists use to predict the path of hurricanes?
Radar
Hurricane hunters
All of the above
Satellites
What is the purpose of dropping sensors into hurricanes?
To measure rainfall
To disrupt the hurricane
To measure wind speed and air pressure
To measure temperature
How do new 3D models benefit hurricane prediction?
By providing entertainment
By predicting the exact time of landfall
By offering a detailed view of the storm's structure
By understanding the force of nature
What is the key benefit of better hurricane predictions?
Better television ratings for news channels
Quicker and more accurate warnings
More accurate weather forecasts
Increased tourism
38-52.
Answer the questions below after watching the video
What year did Hurricane Harvey hit the Texas coast?
2017
2018
2016
2015
How much rain did Hurricane Harvey drop, in terms of Olympic swimming pools?
About 30 million
About 20 million
About 40 million
About 50 million
What does living in a 500-year floodplain indicate?
A flood occurs once every 500 years
A 1-in-500 chance of flooding each year
500 floods in a year
None of the above
What is the probability concept related to floodplains misunderstood by many?
Exact timing of floods
Annual risk percentage
Number of floods per century
Chance of occurrence each year
How does the hurricane scale primarily categorize storms?
By the damage caused
By the amount of rainfall
By the duration
By wind speeds
What is a common misconception about floodplains?
They are uninhabitable
They are safe for construction
They flood once every 100 or 500 years
They are protected areas
How have urban developments affected flood risks?
No impact
Decreased the risk
Increased the risk
Reduced rainfall
What does the clustering of weather events illustrate about probabilities?
They decrease over time
They can occur in unexpected patterns
They are always predictable
They are unrelated to climate change
What is a significant challenge in predicting weather events accurately?
Lack of historical data
Public awareness
Changing climate conditions
Advanced technology
What role does urban development play in flood risk?
Increases water absorption
Increases flood risk
Reduces floodplain size
Has no effect
What impact does climate change have on hurricanes?
Makes them stronger
Eliminates them
Decreases their strength
Increases their number
How do warmer oceans affect hurricanes?
Reduce their size
Shorten their duration
Make them less frequent
Increase their strength
Why is it difficult to understand the impact of a superstorm?
Because of its unpredictability
Due to its size
Lack of previous examples
All of the above
Why do people tend to underestimate the risks of climate change?
Lack of information
Overconfidence in historical data
Belief in technology
All of the above
How can individuals help mitigate the effects of climate change?
Leaving it to governments
Understanding and acting on the risks
Waiting for technology solutions
Ignoring the risks
