Transcript The Solar SysteM - Skyline R2 School

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The Water Cycle
Click on picture for neat
explanation of the Water Cycle
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The water cycle greatly affects
weather and living things
Vocabulary:
water cycle
The movement of water between the
ground and the atmosphere
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You might think that rain brings new
water to Earth
But there is no new water on Earth
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The first step of the water cycle
involves the sun
The sun heats water on Earth and
changes it from a liquid to gas called
water vapor
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Vocabulary:
water vapor
water in the form of a gas
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The water vapor goes into the air
This process is called evaporation
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Vocabulary:
evaporation
The process by which water changes
from a liquid to a gas and goes into the
air
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It is evaporation that dries a puddle in
the sun after the rain
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In the second step of the cycle,
water vapor in the air changes back to
a liquid
This happens when warm air holding
water vapor gets cooler
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This process is called condensation
Vocabulary:
condensation
The process by which water vapor in
the air changes to liquid water
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The tiny water drops in the air are
packed closer and closer together until
they start to join
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Clouds are formed when thousands of
drops are so close together that you
cannot see through them
Video on “Cool Clouds”
7:15
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As clouds become cooler,
the drops join together to make bigger
drops
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Finally, they become heavy enough to
fall back to Earth as rain or snow
This falling rain or snow is the third
step in the water cycle
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The word “cycle” usually means circle
The water cycle is like a circle because
it has no beginning or end
Yep you got it another
version of “The Water
Cycle”
3:37
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There really is no new water on Earth
Click for Bill Nye the Science Guy
“Water Cycle Jump”
1:30
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