Shared Flashcard Set

Details

Oceanography
The Nature of Water
29
Other
12th Grade
01/13/2010

Additional Other Flashcards

 


 

Cards

Term
Adhesion
Definition
Water sticks to other materials due to polar nature.
Term
Cohesion
Definition
Water molecules stick together.
Term
Covalent Bond
Definition
Bond in H2o.  Share electrons.
Term
Mixture
Definition
2 or more substances closely intermingle, yet keep individuality.
Term
Polarity
Definition
Molecule with positive and negatively charged ends.
Term
Salinity
Definition
Dissolved inorganic solids in seawater.
Term
Solution
Definition
2 substances are dispersed together, blending their identities.
Term
Surface tension
Definition
Water's resistance to objects trying to penetrate the surface.
Term
Viscosity
Definition
Flowability of a liquid.
Term
What is the average salinity of the ocean?
Definition
3.5 %
Term
What can change salinity?
Definition
Rainfall, temperature, evaporation.
Term
How can salinity be measured?
Definition
A salinometer.
Term
List the most abundant chemicals in seawater?
Definition
Chloride and Sodium
Term
Compare polar and non-polar molecules
Definition
Term
List and describe the colligative properties of seawater.
Definition

-ability to conduct an electrical current.

-decreased heat capacity.

-raised boiling point.

-decreased freezing temp.

-slowed evaporation.

-ability to create osmotic pressure.

 

 

Term
Biogeochemical
Definition
Flow of chemicals from eath, to water, to land.
Term
Active Diffusion
Definition
Lower concentration to higher concentration.
Term
Carbon
Definition
element of all life. has 12 protons, neutrons and electrons. basic part of sugars.
Term
Colligative Properties
Definition
Properties that depend on the solute in water.
Term
Principle of Constant Proportions
Definition
Proportions of seawater won't change.
Term
hydrogen bond
Definition
attraction between electric forces. weak.
Term
Hypertonic
Definition
concentration of chemicals is higher than surrounding area.
Term
Hypotonic
Definition
less salty than surrounding water.
Term
Isotonic
Definition
maintaining concentration
Term
Osmoconformers
Definition
conform to wherever they are.
Term
osmoregulators
Definition
keep saltiness.  try to keep salt concentration the same.
Term
Passive diffusion
Definition
higher-lower concentration
Term
pH
Definition
acidity
Term
What do rising Carbon Dioxide levels mean for the oceans of Earth?
Definition
The oceans are becoming more acidic and killing animals, shells will dissolve.
Supporting users have an ad free experience!