Water Distributation and Properties Flashcards
How much of the earth’s surface is covered in water
70%
Where is the majority of the water of earth stored
the ocean
What percentage of water is available for humans to consume
3%
How is the structure of a water molecule related to unique properties
Water’s structure is what creates all of it’s unique properties.
What is a water molcules covalent bond
H-O
I
H
Hyrdrogen bonding between water molecules
Draw a big circle with an O in it with a - and draw two smaller circles around the O and put the letter H in them. Then, put a + next to it.
Oppositely charged regions
Polarity
slight negative
Oxyegn
slight positive
Hydrogen
attraction between the slightly positive end and slightly negative end of different molecules.
Hydrogen bonding
an attraction between molecules of the same substance.
Cohesion
Is the caused by cohesion between water molecules along the surface.
Makes the water act like there is an elastic membrane across the surface
Surface Tension
an attraction between molecules of different substances.
Adhesion
Water is very ________
cohesive
Water travels against the
direction of gravity through
the process of adhesion to
the walls of it’s “container”.
Capilary action
_________ is stronger then cohesion
adhesion
Water’s ______ allows it to dissolve more substances than any other liquid!!
polarity
Amount of heat it takes to raise the temperature of 1 gram of a substance 1 degree celsius.
specific heat
Waters specific heat is very
high
Why is waters specific heat important for all forms of life
Aquatic animals don’t have to worry about their homes heating up too fast and killing them and Human bodies are about 75% water. Our body temperatures don’t fluctuate very fast! If they did….we would die!
How can water travel against gravity
capilary action
What property of water makes a surface tension
Cohesion
Water falling as raindrops is an example of
cohesion
capilary action is anexample of
adhesion and cohesion
