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Water and Oceans

Ryan Bussard

QuestionAnswer
How does ice make it possible for organisms to live in a lake during the winter? It acts as an insulator and traps in the heat in the water.
In which state of water can water exist in? All of them, Solid, Liquid, and Gas.
If you were to place drops of water on a counter, what would happen to them? They would attract to each other because they are cohesive.
What does Cohesive mean? Molecules of the same charge that attract to each other.
What does Adhesive mean? Molecules of the opposite charge that attract to each other.
Why does ice float on water when ice is the solid form of it? Ice becomes less dense than water and things that are less dense than water float.
Why do water molecules attract to each other? Positive and Negative molecules attract and Oxygen is Negative and Hydrogen is Positive.
What would a picture of a water molecule look like? 1 Negative Oxygen molecule with 2 Positive Hydrogen molecules attached to it.
Name the five Oceans. Pacific, Atlantic,Arctic, Indian, Southern.
What are two sources for Earth's water? Rain and Glaciers.
How does the water in Earth's oceans become salty? Rivers and streams carry minerals to ocean basins.
Define Salinity. A measure of the mass of dissolved solids in a mass of water.
What are the three regions of the continental margins? Continental shelf, continental slope, and the continental rise.
What are the abyssal plains? Large flat areas of the seafloor.
What are mid-ocean ranges? Places on the seafloor where tectonic plates pull apart.
How are ocean trenches formed? Tectonic plates colliding with pressure plates.
Define an Ocean Current. A large volume of water flowing in a certain direction.
Define a Gyre. A circular system of currents.
Name the five Major Gyres. North Pacific Gyre, South Pacific Gyre, North Atlantic Gyre, South Atlantic Gyre, Indian Ocean Gyre.
What are Density Currents? Currents that move water downwards.
What are density currents caused by? Cold waters greater density.
What causes cold water in the Pacific and Indian Oceans to rise to the surface and get heated by the sun? Upwellings.
Why does upwelling occur? Wind blows across the oceans surface and pushes water away.
In the southern hemisphere, what clock direction do currents move due to the coriolis effect? Counterclockwise.
Created by: rbuss108
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