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Ocean
| Question | Answer |
|---|---|
| What 3 regions do the Conitental margins have? | The slope, shelf, and shoreline. |
| How did Earth's oceans become salty? | Rocks and minerals from mountains slide down and go into the oceans over time. |
| What is salinity? | A measure of the mass of dissolved solids in a mass of water. |
| Identify 5 of Earths oceans. | Pacific, Atlantic, Indian, Southern, Artic. |
| What percentage of Earth's surface is ocean water? | 71% is ocean water. |
| What is polarity? | When only one molecule has one positively charged side and a negitively charged side. |
| Which of Earth's oceans is the deepest? | The Pacific ocean. |
| Define an ocean current. | A large volume of water flowing in a certain direction. |
| Define a gyre. | A circular system of currents. |
| What are five ways in which water is a unique compound? | 1. Exists as a solid, liquid, and gas. 2. forms dots. 3. high heat. 4. dissolves. 5. 3 atoms. |
| In the southern hemisphere, currents curve to which direction? | Right, in a counter clockwise direction. |
| In the northern hemisphere, currents curve to which direction? | Left, in a clockwise direction. |
| Positive sodium atoms are attracted to positive or negative oxegyn atoms? | Negitive atoms. |
| Explain cohesion. | Alike molecules come together. |
| Explain adhesion. | Two different molecules come together. |
| What are two sources of water for Earth's oceans? | Condensation and astroids. |
| Describe the surface zone in the ocean. | Shallow seawater. |
| Describe the middle zone in the ocean. | Most of lights wavelengths have absorbed. |
| Describe the deep zone of the ocean. | Plants do not grow. |
| What is another name for the middle zone? | The twilight zone. |
| What is the average depth of ocean trenches? | 4,000 meters. |
| What are some examples of methane hydrates? | Oil and natural gas. |
| What are some examples of minerals? | Maganese nodules. |
| Cite 4 criteria scientists use when classifying ocean zones? | Sunlight, tempature, salinity, and density. |
Created by:
ellemall
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