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properties of water
Olivia Layson
| Question | Answer |
|---|---|
| the density of ice is lower than the density of the same volume of liquid water, true/false? | true |
| what is cohesion? | the attraction among molecules that are alike |
| what is adhesion? | the attraction among molecules that are not alike |
| the density of freshwater is highest at what temperature? | 4 degrees celsius |
| in which states of matter can water exist in nature on earth? | all three solid,liquid,and gas |
| if you spill water on a counter it forms droplets, what causes these droplets to form? | cohesion |
| what two elements make a water molecule? | hydrogen, and oxygen |
| what is another name for the middle zone? | the twilight zone |
| what is another name for the deep zone? | midnight zone |
| what are the 3 continental margins? | continental shelf,slope,and rise |
| what are the 4 criteria scientists use when classifying ocean zones? | 1. amount of sunlight 2. temperature 3 .salinity 4. density |
| what is the surface zone like? | it has shallow sea waters, receives greatest amount of sunlight,and organisms that use photosynthesis live there |
| what is the middle zone (twilight zone) like? | it only receives blue-green light, but most of the lights wavelengths get absorbed |
| what is the deep zone (midnight zone) like? | they do not have any plants here,no light,the organisms living down there make their own light (bioluminescent) |
| for the tropical regions as depth increases temperature ________ | drops |
| for the tropical region as depth increases salinity _______ | drops |
| define ocean current | a large volume of water flowing in a certain direction |
| what are density currents caused by? | changes in density |
| define grye | a circular system of currents |
| name 5 major gyres | indian ocean,north pacific,north atlantic,south pacific,and south atlantic |
| in the southern hemisphere which way do the currents curve? | to the left (counterclockwise) |
| in the northern hemisphere which way do the currents curve? | to the right (clockwise) |
| what is the benefit of an upwelling? | it brings nutrient-rich water to the oceans surface |
| do cold water currents release less or more thermal energy and moisture in the air than warm water currents? | less |
Created by:
Olivialayson
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