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properties of water

Olivia Layson

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