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Ocean Review
Properties, Composition, Currents
| Question | Answer |
|---|---|
| How many states of matter can water exist in? | 3 |
| Water becomes less dense when frozen causing it to... | float on liquid water |
| What causes waters unique properties? | it's molecules |
| What are the strong forces between water molecules called? | cohesion |
| Why can water be called the universal solvent? | many substances can dissolve in it |
| What is polarity? | when opposite ends of a molecule have slightly opposite charges, but the overall charge of the molecule is neutral |
| Why are water molecules attracted to each other? | the positive charges of the nitrogen attract to the negative charge of the oxygen |
| What does ice do yo the lake to make it possible for organisms to live in it during the winter? | it insulates it |
| What are Earth's five oceans? | Atlantic, Pacific, Indian,Southern, and Arctic |
| What are the two sources of water for Earth's oceans? | condensation from the water cycle and asteriods+comets |
| What is salinity? | a measure of the mass of dissolved liquids in a mass of water |
| What are continental margins? | extend from the shoreline to the deep ocean |
| What are abyssal plains? | large, flat, areas of the sea floor that extends across the deepest parts of the ocean basin |
| What are mid-ocean ridges? | continuous mountain ranges that extend throughout ocean basins |
| What are ocean trenches? | ocean tectonic plates collide with continental plates and form deep canyons and trenches along edge of an abyssal plain; deepest part of the ocean |
| What are the four criteria scientists use when classifying ocean zones? | amount of sunlight, temperature, density, and salinity |
| What are currents caused by? | the wind and salinity |
| What is an ocean current? | a river of water running through the ocean |
| Thermohaline currents are... | warm and salty |
| What do data marker buoys drift with? | ocean currents |
| Has the amount of salt in the ocean changed? | no |
| The flow of currents in Northern and Southern Hemispheres are... | opposite |
| Where is the most powerful ocean current the Gulf Stream found? | the Atlantic Ocean |
| Does arm air hold more or less heat than warm water? | less |
Created by:
syd1292
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