2. Water on earth
You could call Earth``the blue planet``
that is because three-fourths of
Earth`s surface is covered by water.
. Most water is in the ocean
3. Earth`s water is found in different
forms. It can move one place to another.
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2
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You might find the water
particle crashing on a beach in an
ocean wave.
You might find it drifting in the
sky as part of a cloud.
You might find it floating down
. as snow
4. Water cycle
Water cycle is the movement of
water from Earth`s surface into
the air and back again.
Water cycle gives Earth a constant
supply of fresh water.
Most of Earth`s water is salty ocean
water . that you cannot drink
5. Water changes form, or state,
as it moves through the water
cycle.
After water moves through the
stages of the water cycle, the
.cycle begins again
6. Evaporation
The sun`s warmth causes water
on Earth`s surface to evaporate.
Evaporation is the change from
liquid . water to water vapor,a gas
8. Condensation
The water vapor rises into the air
and cools. As it cools, the vapor
changes into tiny water droplets.
Condensation is the change from a
gas into a liquid.
The water droplets . collect and form clouds
11. precipitation
Water particles in the clouds
join together.
When they become heavy, they
fall to Earth as rain, snow, sleet,
or hail.
Precipitation: is the water that
.falls to Earth