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Ocean Study Stack
Koch
| Question | Answer |
|---|---|
| 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
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