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WorksheetsOceanography Earth Science
Total questions: 25
Worksheet time: 25mins
What is the El Nino Southern Oscillation?
Every 2 -7 years the surface waters on the eastern Pacific become warmer than normal during December, January, & February
Every 2 - 7 years the surface waters on the eastern Pacific become colder than normal during
December, January, & February
Precipitation is...
Moisture falling from the atmosphere as rain, snow, or hail
A force exerted onto a surface by the weight of air molecules
The study of weather
Climate is...
a daily or weekly status of the atmosphere
the long-term overall physical conditions of a region
Low pressure areas experience...
cool, clear weather
warm, cloudy, and stormy weather
Which of the following are physical conditions that pose a challenge to people and motorized devices when diving near the deep sea floor. (choose all that apply)
intense pressure
bright light
extreme cold
salty conditions
What is the La Nina Southern Oscillation?
Every 2 -7 years the surface waters on the eastern Pacific become warmer than normal during December, January, & February
Every 2 - 7 years the surface waters on the eastern Pacific become colder than normal during
December, January, & February
What are some affects of El Nino?
heavy rains
flooding
drought in India
What are some affects of La Nina?
heavy rains
flooding
drought in India
They are vast bodies of salt water that separate the continents.
oceans
seas
lakes
rivers
What percentage of the planet earth is covered by the ocean?
(a)
Select the name of the scientists that study the ocean:
biologists
oceanographers
pedologists
vulcanologists
It is the height of the ocean´s surface at a given point on the earth´s surface.
(a)
To measure the elevation of a mountain we use which type of sea level?
local sea level
mean sea level
What are the two most important chemicals in seawater?
chlorine
potassium
sodium
sulfur
Select two of the gases found in ocean water:
oxygen
helium
carbon dioxide
magnessium
Right now, the (a) sea level is rising about 2.5 mm each year worldwide due to global warming.
Write the three factors that affect the sea level:
Which crust is thicker
oceanic
continental
they are have the same density so it doesn't matter
science isn't able to tell yet
Which process adds more crust to the ocean floor?
earthquakes
sea floor spreading
subduction
convection
Which best represents the order of seafloor features as you move from the shoreline to the deep ocean?
Continental slope – continental shelf- continental rise – mid-ocean ridge
Continental rise – continental shelf – mid-ocean ridge - continental slope
Continental shelf – continental slope – continental rise – mid-ocean ridge
Mid-ocean ridge – continental rise – continental shelf- continental slope
What type of boundary does Seafloor Spreading occur?
Convergent
Subduction
Collision
Divergent
What is the primary force that drives ocean currents?
Wind
Tides
Earth's rotation
Salinity differences
Which oceanographic tool is used to map the seafloor?
Sonar
Thermometer
Barometer
Anemometer
What is the average salinity of ocean water?
3.5%
1.5%
5.0%
0.5%
Which process is responsible for the upwelling of nutrient-rich waters along coastlines?
Coriolis effect
Tidal forces
Wind-driven circulation
Thermohaline circulation
