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Ch. 11.1 Water Cycle Notes
Name_____________
Introduction
Why is Earth called the “water planet”?
Oceans cover nearly __________ of Earth’s surface.
Outline of 11.1
I. Water on Earth
Most of Earth’s water is _________________ that is found in
oceans. Only ____________________.
Of that 3%
–76% _______________
–.037% atmosphere (water vapor in a gaseous form.)
–Some of the Earth’s fresh water is deep underground.
–Less than 1% is fresh water available for human use.
A. ________________
All Earth’s oceans are connected to form a single
world ocean.
B. Ice - Artic and Antarctica
Icebergs are formed from frozen fresh water.
C. __________________ - St. Lawrence Seaway to the Great
Lakes
D. _____________________
Groundwater - ___________________________________________
__________________________________________________ Far
more fresh water is located underground than in all Earth’s
rivers and lakes.
II. The Water Cycle
Water Cycle - ____________________________________________
___________________________________________________________
____________.
All the water on Earth has been through the water cycle.
In the water cycle, water moves from bodies of water, land,
and living things on Earth’s surface to the atmosphere and
back to Earth’s surface.
The ______________________________ that drives the water
cycle.
A. _____________________
Evaporation - _____________________________________________
____________________________________________________.
Ocean water that evaporates isn’t _______________ because
the salt remains in the ocean.
Plants
Plants take in water by drawing in water form the soil
through their roots.
Transpiration ____________________________________________.
Plants give off a ___________________________ of water.
B. Clouds ________________
Condensation - ____________________________________________
___________________________________________________________
___________.
Water vapor condenses when it travels up in the air because
the air is ___________. Cold air holds less water vapor
than warm air, so some of the water vapor condenses.
C. Water Falls as ___________________
Precipitation ____________________________________________.
Precipitation occurs when water droplets in a cloud grow
larger and larger. They become so heavy that they fall to
Earth.
D. Water Falls as ____________________
Most water falls ___________________________ which may stay
there for many years.
Some water falls _____________________________________.
Some water runs off into _______________________________.
Some water trickles ____________________________.
Precipitation is the source of all _____________________ on
and below Earth’s surface.
The ____________________________ renews the usable supply
of fresh water on Earth.
The total amount of water on Earth has remained fairly
__________________________.