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WATER

properties/composition/currents

QuestionAnswer
How many hydrogen's are in a water molecule? Two
What is adhesion? The attraction among molecules that are not alike
What is cohesion? The attraction among molecules that are alike
At what temperature is freshwater's density the greatest? 4 degrees Celsius
What is Polarity? A condition in which opposite ends of a molecule have slightly opposite charges, but the overall charge is neutral
What is specific heat? The amount of thermal energy needed to raise the temperature of 1kg of material
Does water have a high or low specific heat? High
Why does ice float in water? It is less dense
What are the two sources of water for the Earth's oceans? 1. water vapor from volcanos 2. asteroids and comets
What is salinity? A measure of the mass of dissolved solids in a mass of water
What are the different features on the seafloor? Continental margins, Abyssal Plains, Mid-ocean ridges, Ocean trenches.
What are the four criteria scientists use when classifying ocean zones? 1.amount of sunlight 2.temperature 3.salinity 4.density
What are the 3 zones of the ocean? Surface zone, Middle zone and the Deep zone
In tropical regions... As depth increases, density _______. Increases
In temperate regions... As depth increases, salinity _______. Decreases
In polar regions... As depth increases, temperature _______. Stays constant
What is an ocean current? A river of water running through the ocean
Has the amount of salt in the ocean changed? No
What causes an ocean current? Wind and the amount of salt in the ocean
What is the most powerful ocean current and where is it located? Gulf Stream, Atlantic Ocean
True or false: Some living things depend on ocean currents to live. True
True or false: The more salt the heavier the water. True
Does warm water hold more or less heat then warm air? Less
What are Thermohaline currents like? Warm and salty
Created by: kendall18_
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