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Details Title: Earth Science Description: Chapter 14 - Ocean Water and Ocean Life Total Flash Cards: 19 Created: 02/22/2006 18:53:45	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term structure of water molecule bonding polarity charge Definition covalent bond polar molecule charge: zero Term how does hydrogen bonding affect water? Definition allows water to be in solid and liquid state Term heat capacity Definition the amount of heat required to raise the temperature of a body by a specific amount Term salinity Definition the amount of salt dissolved in 1 kg of seawater parts per thousand Term viscosity Definition measure of a fluid's resistance to flow decreases with increasing pressure Term what is salinity determined by? Definition measuring the conductivity of seawater salt increases conductivity of seawater pure water not electrical conductor salinometer Term density Definition mass per unit volume of a substance buoyancy of an obvject depends upon its density relative to seawater Term density of seawater is a function of what three things? Definition temperature salinity pressure Term what are sources of salt? Definition weathering of rocks volcanic gases rivers? Term residence time Definition length of time a particle or an element remains in seawater Term salinity effects freezing poing conductivity boiling point Definition increased dissolved salts result in freezing point lowered conductivity increases boiling point increases Term marine life vs. terrestrial life differences in living conditions Definition light predation viscosity water temperature gravity obtaining nutrients gases Term ectotherms vs. endotherms Definition ectotherms - cold blooded; body temp varies with enviro; all marine -seabirds+mammals endotherms - warm blooded; constant body temp Term mechanisms for organisms to stay in the photic zone Definition gas filled bladders flagella active motion increasing surface area relative to volume high rates of reproduction organic substance secretion (lighter than water) Term biomes Definition large living regions of which the oceans may be divided classified on the basis of the natural distributions of marine organism Term benthic organisms Definition organisms that live on or within the sediment worms, arthropods, mollusks, and gastropods Term pelagic organisms Definition organisms that live in the water column divided into two groups: neritic - water over continental shelf oceanic - water beyond the shelf Term neritic organisms Definition organisms that live from the low tideline out to the shelf break Term primary production Definition organic carbon material manufactured from inorganic carbon material through photosynthesis or chemosythesis