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About the Ocean.

24 questions about the ocean, its currents and air.

Can you answer/guess this?Are you correct?
What's a ocean current? a large volume of water flowing in a certain direction
Define Prevailing winds. Prevailing winds influence the formation and direction of surface currents.
What's surface currents? Surface currents move water horizontally and reach depths of 400 meters or more.
Define a gyre. a circular system of currents.
What effect does the Coriolis effect have in the southern hemisphere? In the southern hemisphere, currents curve to the left in a counterclockwise direction.
What effect does the Coriolis effect have in the northern hemisphere? In the northern hemisphere, currents curve to the right in a clockwise direction.
Summarize how surface currents affect weather and climate. Regions near warm-water currents are often warmer and wetter than regions near cold-water currents.
What's ocean water? Ocean water is salt water.
The heat of the sun condenses/evaporates the water in the ocean leaving only salt behind. Does it condense or evaporate? Evaporates.
Ocean currents are caused by ____ and the amount of ____ in the water. Ocean currents are caused by wind and the amount of salt in the water.
Warm air holds less/more heat than warm water. More.
Very salty water is heavier/lighter than water that's not as salty. Heavier.
Data marker buoys drift with ocean currents/temperatures. Currents.
Fish depend on ______ water, also known as currents, for food. Moving.
Rivers and lakes are not salty because the ____ in the water flow to the ocean. Salt ( minerals )
The amount of salt in the ocean has/hasn't changed. Hasn't.
The flow of the currents in the northern and southern hemispheres are opposite/same. The Northern flows clockwise. The Southern flows counterclockwise.
Sea level means that land is the same _____ as the sea. Level.
Define salinity. The measure of the mass of dissolved solids in a mass of water.
Tell the difference of seawater and brackish water. Seawater is water from a sea or ocean that has an average salinity of 35 ppt. Brackish water is freshwater mixed with seawater, also called brack water. ( Example. )
Explain why river water nbear an ocean is sometimes salty. As river water pours into the ocean and tides rise and fall, the freshwater of a river mixes with salty ocean water. When freshwater mixes with salt water, it becomes brackish.
How did the water in Earth's oceans became salty? As rain washed over rocks, it dissolved minerals that form salts. Rivers and streams carried these substances to the ocean basins and made the water salty.
Point out two sources of water for Earth's sources. 1. Water vapor expelled from volcanoes that condensed and precipitated. 2. Melted ice from comets and asteroids.
Cite four criteria scientists use when clarifying ocean zones. 1: Amount of sunlight. 2: Salinity. 3: Density. 4:Temperature.
Identify 5 major gyres. Examples: North Pacific Gyre, North Atlantic Gyre, Indian Ocean Gyre, South pacific gyre, south atlantic gyre.
Created by: EnlistedEar8770
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