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4E-Science Ch D 2

Water in the Oceans

What does the motion of the water moving up and down form? A wave
What do strong and gusty winds blowing over a large area cause? Storm surge
What is formed when colder, saltier water mixes with warmer, less salty water? Deep-ocean current
Steady winds cause the oceans to flow in paths like rivers. What does this steady flow cause? Surface current
What has the greatest effect on changing tides? Pull of the moon's gravity
Why does erosion make beaches smaller? It carries sand and sediment away from the shore.
What is the motion that would best describe the way waves move? Up and down
Why is the gravitational force of the moon on Earth's oceans stronger than the gravitational force of the sun? The moon is closer to Earth than the sun
Which factors affect the density of deep-ocean currents? temperature and the amount of salt
Why does a deep-ocean current occur? Denser water flows beneath less dense water.
Why are waves usually bigger in an ocean than in a small lake? Oceans have larger areas, so they have bigger waves.
Water droplets that fall from the clouds because they are too heavy form this. Precipitation
What is the process of liquid changing to a gas? Evaporation
What is the process of gas changing to a liquid? Condensation
What is the process of ocean water constantly changing from liquid to gas and back to liquid? Water cycle
What is the daily change in the ocean's water level that is caused by the gravitational pull of the sun and the moon? Tide
Created by: MrsHeatherKing