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Ocean Study Stack


What makes water a unique compound? (5 things) Only substance that exists a liquid, gas, and solid in nature, has a high specific heat, forms droplets on solid surfaces, the frozen form (ice) floats on the liquid form (water), substances dissolve in water
What are the molecules in water and what are their charges? Hydrogen- Negative, Oxygen- Positive
What is polarity? A condition in which opposite ends of a molecule have slightly opposite charges, but the overall charge of the molecule is neutral.
What is cohesion? The attraction of molecules that are similar
What is adhesion? The attraction of molecules that are different.
Is the density of ice greater, or less than the density of water? The density of ice is greater than the density of an equal amount of water.
When is the density of freshwater at it's highest temperature? 4 degrees Celsius
What happens to a frog's environment in winter (when it is cold enough for the water to freeze)? The water will freeze over and if the frog is caught under the ice, he will most likely die if he does not get to a warmer world zone.
What are the five oceans on Earth? Pacific, Atlantic, Indian, Southern, Arctic
What are two sources of Earth's ocean water? Condensation, Asteroids and comets carrying water
How did the Earth's oceans become salty? Millions of years ago, rain fell and dissolved some minerals (most containing salt) and the mineral water ran into the oceans.
What is salinity? The measure of mass of dissolved solids in a mass of water. Usually measured in ppt.
Define brackish water. Fresh water mixed with some salty water. Usually 5-17 ppt.
What are two resources that come from the seafloor? Oil and natural gas, minerals such as manganese, gold, and zinc
State four criteria scientists use when classifying ocean zones. Sunlight, temperature, salinity, and density
What are the three ocean zones? Surface zone, middle zone, deep zone
What is ocean current? A large volume of water flowing in one direction.
What is a gyre and identify five major gyres. Gyre- a circular system of currents North Pacific, South Pacific, North Atlantic, South Atlantic, Indian Ocean
What is the effect of the Coriolis effect on the movement of surface currents? Southern hemisphere- currents move left in a counterclockwise direction Northern hemisphere- currents move right in a clockwise direction
Why does upwelling occur? Wind blows across the surface of a body of water and pushes water away from that area.
What is a benefit of upwelling? The cold water that is pushed up supports living creatures.
What are density currents? They carry water from the surface to ocean depths
What are density currents caused by? Changes in density
How can surface currents effect an area's weather and climate? They can cause warm of cold climate/weather
How do temperature differences along the south-eastern coast of the United States change weather and climate? Summer evenings are warm and humid, rain is common
Created by: elliewoof8899