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Properties of Water

STUDY
PLAY
Polar Molecule
separation of electric charge leading to a molecule having an electric dipole.
Capillary Action
The combined force of attraction among water molecules and with the molecules of surrounding materials
Surface Tension
the tightness across the surface of water that is caused by the polar molecules pulling on one another
Solution
A mixture that forms when one substance dissolves another.
Solvent
A substance the dissolves another substance
Specific Heat
The amount of heat needed to to increase the temp. of a certain mass of substance by 1degree C
Evaporation
The process by which molecules at the surface of a liquid absorb enough energy to change to the gaseous state.
Condensation
The change of state from a gas to a liquid
Transpiration
The process by which plants give off water vapor through their leaves
Precipitation
Water that falls to earth as rain, snow, hail, or sleet
groundwater
water that fills the cracks and spaces in underground soil and rock layers
watershed
the land area that supplies water to a river system
tributary
a smaller stream or river that feeds into a main river
wetland
a land area that is covered with a shallow layer of water during same of all of the year
water table
the top of the saturated zone, or depth to the groundwater under earths surface
aquifer
an underground layer of rock or soil that holds water
artesian well
a well in which water rises because of pressure whit in the aquifer
permeable
characteristics of a material that is full of tiny, connected air spaces that water can seep through.
impermeable
a characteristic of materials, through which water does not easily pass
runoff
the draining away of water
infiltration
when a portion of the precipitation that reaches the earths surface and seeps into the ground
Accumulation
the gradual gathering of something
source of oceans salt
as water flows through rivers it picks up mineral salt and then this water goes through the cycle and back into the ocean
% of Salt water of earth
97%
% of fresh water on earth
3%
Largest watershed in US
Mississippi River basin
Saturated zone
area that is totally filled with water.
Unsaturated zone
layer about the water table
Significance of wetlands
wetlands act like a strainer to the bad stuff that doesn't help our environment
Marsh
an area of low-lying land that is flooded in wet seasons or at high tied, and typically remains waterlogged at all times
Swamp
an area of low-lying, uncultivated ground where water collects; bog or marsh
Bog
wet muddy ground too soft to support heavy body
Largest wetland in US
Florida Everglades
Spring
places where groundwater bubbles or flows out of cracks in the rock
Geyser
a type of hot spring from which the water bursts periodically into the air.