Floods
Water on Earth
Hydrologic Cycle
Surface Water
Ground Water
100
what makes floods occur?
when a river carries more water than what the river channel can hold
100
How much water can be used for human needs?
less than 1%
100
What is the hydrologic cycle?
the movement of water though the hydrosphere
100
name a major tributary
In the central US the Arkansas, Missouri, and Ohio rivers are all major tributaries of the Mississippi.
100
what is water found below the ground called?
groundwater
200
The damage floods cause have increased or decreased?
increased
200
Where is most of the fresh water?
Frozen in Ice Caps in Antarctica and Greenland
200
when heated by solar energy water changes to what?
water vapor
200
where is surface water also found (type of terrain)
wetlands
200
Where is groundwater first stored in the ground?
in soil
300
do cities and industries like to be located by rivers? Or not by rivers? (trick question)
by rivers because then it's easier to get shipments and water transports
300
How much water on Earth is fresh water?
less then 3%
300
What are two things that dive the Hydrologic Cycle?
solar energy, wind, gravity
300
The first smallest stream off a runoff is called a what?
headwater
300
where is the second place groundwater goes when it sinks into the ground?
plant roots reach down and soak up the water
400
What do floods cause?
destroyed land and vegetation
400
What is desalinization?
The removal of salt (especially from sea water)
400
As water vapor rises into the air, what happens?
It cools and forms tinny liquid droplets in a process called condensation
400
when a whole region is drained by a river and its tributaries its called a what?
watershed or drainage basin
400
the level in which all the spaces are filled with water is called what?
water table
500
Runoffs are increased the amount of damage a flood make when what is covering the ground?
pavement and buildings because the soil can't take in the water
500
How much water is in the ocean? (say the %)
97%
500
From gas to liquid to solid is what kind of change?
physical change
500
When the headwaters join they form larger streams, and go into rivers or run into rivers, what is this called?
Tributary
500
ground water is being used for what?
farms and citys
M
e
n
u