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