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DISL HS W1 P1

Dauphin Island Sea Lab Discovery Hall High School Program Week 1 part 1

QuestionAnswer
What is a narrow, gently sloping strip of land that lies along the edge of an ocean, lake, or river Beach
what is intertidal high tide
what is the highest level of tide supratidal
what is low tide subtidal
Feed on organic matter/detritus that settles in the sediment Deposit Feeders
where are deposit feeders more common mudflats
where are suspension feeders mor common sandy sediments
An island just off the coast of the mainland Barrier Island
requires sand supply  flat surface where the sand can accumulate (continental shelf)  wave energy to move the sand around  rate of sea level change (slow enough for it to build up) Barrier Island
current of water parallel to the shoreline generated by waves hitting the beach at an angle and flowing back out at an angle Longshore Current
the movement (or current) of sand along the shoreline being carried by the longshore current Littoral Drift
When sea level rose, the shoreline retreated When sea level rose, the shoreline retreated
What is the water cycle steps condensation, precipitation, collection, evaporation
what makes water two hydrogen and one oxygen (H2O)
bond that equally shares electrons Covalent bond
hen there are one or more electrons being shared between atoms due to oppositely charged ions Ionic bond
weak bonds holding the molecules together are called Hydrogen Bond
unequal share of electrons polarity
what are the four properties of water universal solvent, Temperature regulation, Surface tension, Viscosity
solute being dissolved
solvent doing the dissolving
solution solute and solvent
The measure of a solute in a solvent is known as concentration
Water sticking to itself Cohesion
Water sticking to other things Adhesion
Water moving up through small spaces Capillary Action
amount of energy needed to heat the water by 1°C per unit of mass Specific heat capacity
The study of how chemical properties of oceans interact with marine ecosystems, ocean currents, and fluid dynamics chemical oceanography
Why is the ocean salty? Hydrothermal vents and Erosion of Earth’s Crust
the total amount of dissolved Salts in sea water Salinity
What is the Average Ocean Salinity 35 ppt
what states The ratios of major ions will always remain the same Law of Constant Proportions
Why are ions important Animals in the Ocean need them
physical saltwater implications Higher salinity will increase the density of the water and Colder water is more dense than warm water
the movement of water across a semi-permeable membrane to an area of saltier concentration osmosis
the maintenance of constant osmotic pressure in the fluids of an organism by the control of water and salt concentrations Osmoregulation
What are major ocean dissolved gases Nitrogen gas, N2 Oxygen gas, O2 Carbon dioxide, CO2
what affects dissolved gas ratios temp. pressure, and salinity
The study of the physical, chemical, biological, and geological processes and reactions that govern the composition of and changes to the natural environment Biogeochemistry
carbonate buffering Carbonate (CO32-) ions will sweep up free hydrogen ions, which will cause a decrease in acidity (increase in pH)
Created by: user-1956954
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