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ocean study stack
| Question | Answer |
|---|---|
| Name five of earths oceans and which one of them is the biggest. | Indian ocean, atlantic ocean, paciffic ocean, southern ocean, artic ocean. Pacific is the biggest. |
| Explain how earths oceans became salty. | Each of the oceans washed up onto shore and collected rocks, salt, and sand with it, slowly breaking down the rocks. |
| whats the diffrence between seawater and brackish water? | brackish: fresh water mixed with sea water between 1ppt and 17ppt. sea water: water from an ocean that has 35ppt. |
| define salinity. | a measure of the mass of dissolved solids in a mass of water. |
| what is the saltiest body of water out of the main 5 oceans (Atlantic, pacific, southern, Indian, artic.) | the Atlantic ocean. |
| what are the 2 most common elements in water? | hydrogen and oxygen. |
| what 2 things combine to make salt? | Clorine and sodium. |
| what is an Esturarie? | a partly enclosed coastal body of brackish water. |
| what is an hydrothermal vent? | a fissure in a planets surface, heated water issues.. |
| give me 3 regions of a continental margin. | 1. continental shelf 2. continental rise 3. continental slope |
| what are 4 criteria scientists use to classify ocean zones? | 1. sunlight 2. tempature 3. salinity 4. density |
| what are the minerals you can find under the ocean? | manganese nodels, gold, and zinc. |
| describe a surface zone. | shallow sea water that recieves the most sunlight. most plants live in the surface zone. |
| describe a middle zone. | faint blue/green light into the ocean. |
| describe a deep zone. | (midnight zone) where there is NO LIGHT, and plants don't grow. |
| point out 2 sources of water for earths oceans. | 1. asteroids/comets in condensation 2. water vapor expelled from volcanoes |
| what are abyssal plains? | larges flat areas of the sea floor. |
| why do water molecules attract to each other? | because of their negative and positive charges. |
| is water adhesion or cohesion? | water is adhesion |
| can water be a solid liquid or gas? | water can be all 3 |
| cause: in winter, the surface water of a pond cools to 0 degrees Fahrenheit. | effect: the density decreases and the ice isolates the water below. |
| the density of freshwater is LOWEST at 4 degrees Celsius. True or False? | False its at its GREATEST. |
| the particles of liquid water are CLOSER TOGETHER than the particles of the same volume of frozen water. True or False? | True. |
| if its winter, and the top of the ice is frozen, is the bottom? why? | no, because its warmer then the top of the ice so animals can live under the ice where its the temp. they like it. |
| how does ice float on water/ | because the ice is less dense than the water below it. |
Created by:
lailahbyron3
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