2. The earth has a limited amount of water.
Water keeps going around in what we call the
"WATER CYCLE"
This cycle is made up of a few main parts:
EVAPORATION
CONDENSATION
PRECIPITATION
INFILTRATION

3. Evaporation is when the sun heats up
water in rivers, lakes or oceans
and turns it into water vapor.
The water vapor leaves the river, lake
or ocean and goes into the air.
EVAPORATION

4. CONDENSATION
Water vapor in the air gets
cold and changes back into
liquid, forming clouds.
This is called condensation.

5. PRECIPITATION
When there is too much condensed
water in the air the clouds get heavy
and water falls back to the earth in the
form of rain, hail, sleet or snow.

6. Rain water soaks into the ground
through the soil and the rocks.
Groundwater moves very slowly.
The water flows into streams and rivers
and may stations in the lakes for some
time. Not all the water flows back to
the sea , and most evaporates before
reaching the sea or an aquifer .
INFILTRATION