Water Cycle 1
The water cycle is driven by _____ and the ______.
gravity, sun
the cooling process by which a gas changes back into a liquid
condensation
~97%
What force pulls water from clouds down to earth in the form of precipitation?
Gravity
Water leaves a plant through it's
What are leaves
About how much of the water on Earth is drinkable water?
< 1%
Plants contribute to the water cycle through this process.
transpiration
the gas form of water
Water Vapor
Where does most of the earths evaporation come from
oceans
True or False - The water you are drinking might be water from millions of years ago.
True
What causes clouds to form?
Water vapor rising into the air and cooling back into liquid water drops.
Water in the form of gas
water vapor
Name two forms of precipitation.
rain, hail, sleet, and snow.
When water vapor turns into a liquid in the atmosphere it forms...
a cloud.
any form of water that falls from the clouds
precipitation
About how long can humans survive without water?
~3 days
Run off depends on _______ to move water across land.
gravity
When water moves from the sky to the earth
precipitation.
What is water found underground called?
Ground Water
True or False? Water is created during the Water Cycle
False
The energy source that drives the water cycle.
the Sun
When liquid water turns to water vapor
evaporation
What type of precipitation falls as frozen crystals?
Snow
The process of condensation is when a gas turns into a ...
Liquid
When liquid water absorbs energy from the sun, ______ occurs.
When gaseous water loses that energy, _______ occurs.
Evaporation;
Condensation
Where or in what form is most of Earth's Freshwater
Ice form - Glaciers/iceburgs
This type of precipitation occurs in the summer, when an updraft forces water droplets high enough to freeze.
This type of precipitation happens in the winter, when snow melts on its way down and freezes before hitting the ground.
Clouds are made up of this state of matter.
Is rain fresh or saltwater? Why?
Salt is too heavy to evaporate with the rest of the water.