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Oceans Review

Properties of water, Composition of ocean, and Ocean currents

QuestionAnswer
A condition in which opposite ends of a molecule have slightly opposite charges, but the overall charge of the molecule is neutral. Polarity
How many hydrogen and oxygen molecules is water composed of? Two hydrogen and one oxygen molecule(s)
The attraction among molecules that are alike. Cohesion
The attraction among molecules that are not alike. Adhesion
The density of ice is higher than the density of the same volume of water. True or false? False, the density is lower
The particles of water are closer together than the particles of the same volume of frozen water. True or false? True
What happens when the surface water of a pond cools to 0 degrees celsius? The surface water freezes, making it ice. The ice is less dense than the pond water beneath it, making it float. Organisms living in the pond can survive.
The density of freshwater is at it's lowest at 4 degrees celsius. True or false? False, the density is at it's greatest
Name two sources of water for Earth's oceans. One source is from condensation and precipitation occurring for tens of thousands of years. Another source is asteroids and comets falling to Earth then melting.
Water from a sea or ocean that has an average salinity of 35 parts per ton. Seawater
The measure of the mass of dissolved solids in a mass of water. Salinity
Water which is freshwater mixed with saltwater that has an average salinity of 1-17 parts per ton. Brackish Water
What are the four areas that scientists use when classifying ocean zones? Amount of sunlight, temperature, salinity, and density
What are by the coastline of an ocean that collide with an ocean plate and continental plate? Ocean Trenches
What are large, flat areas of the seafloor that extend across the deepest parts of the ocean basins? Abyssal Plains
What is an area in the ocean that is below the surface zone, absorbs wavelengths and receives little sunlight? The Middle Zone
Warm air holds less heat than warm water. True or false? False, warm air holds more heat
What are two reasons that ocean currents occur? Ocean Currents are caused by wind and the amount of salt in the water.
The flow of ocean currents in the northern hemisphere are the same as in the southern hemisphere. True of false? False, the flows are opposite in the two hemispheres
A river of water running through the ocean. Ocean Current
The land is the same level as the sea. Sea Level
Very salty water is heavier than water that is not as salty. True or false? True
The amount of salt in the ocean has changed. True or false? False, it has not changed
Warm salty ocean currents. Thermohaline Currents.
Created by: cc2482
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