water cycle ppt
TRANSCRIPT
The
Water
Cycle
Table of Contents:**Click on the picture next to each topic to discover more about the water cycle!
After you’ve looked at each section, practice what you’ve discovered by learning The Water Cycle Song!**
Enjoy your journey!!Evaporation & Transpiration
Condensation
Precipitation
Putting it all together: THE WATER CYCLE
The Water Cycle Song
Evaporation & Transpiration
Both are caused by the sun’s heat.
HOMEReturn to Table of Contents
Evaporation
Water begins its journey as a liquid in streams,
rivers, ponds, lakes, and oceans…even puddles! It is in a liquid state and
sits on the earth because it is heavier
than air.
Return to Table of Contents
Evaporation
When the sun heats up the water, the water turns into vapor, tiny molecules of water, and heads for the sky.
When water evaporates it is lighter than air.
Return to Table of Contents
Transpiration
Just as we sweat, so do plants!
Return to Table of Contents
Transpiration
Plants absorb water from the soil. Each plant will use the water that it needs to help it grow. As extra water travels
through the plant and to its leaves, it is pulled out and evaporated into the air. This process is called
transpiration.
Transpiration
Return to Table of Contents
Condensation
Have you ever noticed that if you pour a cold drink on
a hot day, you get water on the outside of the glass?
Return to Table of Contents
CondensationDid the water leak through the glass? No! It came from the air! Water vapor in the air became cooler
when it touched the cold glass, causing it to became liquid again!
Return to Table of Contents
Return to Table of Contents
Condensation
When water vapor goes up into the air, it becomes colder and gathers with millions of other tiny
molecules of water to create all of the beautiful clouds in our skies!
Condensation
Did you notice something about the process of condensation?
It is the OPPOSITE of evaporation!
It is the COOLING process
that initiates condensation.
It is the HEATING process that initiates evaporation.
Why is that?!
Return to Table of Contents
Precipitation
Some things are just too heavy to hold!
Return to Table of Contents
Precipitation
We get precipitation when so much condensed water has become too heavy for the atmosphere to hold on to.
Return to Table of Contents
Precipitation
The clouds get so packed with water molecules that they become heavy and much colder. As the evaporation cools
it turns back into water and falls down to the ground.
Return to Table of Contents
Precipitation
Precipitation falls in many forms…
Rain
Sleet
Snow
Hail
Return to Table of Contents
Precipitation…and collects in and on the ground in the form of rivers, streams, lakes, ponds, and oceans.
Return to Table of Contents
Return to Table of Contents
When water is heated enough it can
evaporate or transpire and go into the
air.
It condenses until it is too heavy and
cold,
becomes liquid again, and falls down
from the sky as a form of precipitation.
What have we learned about The Water
Cycle?
Return to Table of Contents
Now, let’s put it all together into The Water Cycle
First, we get heat from the sun…
…which evaporates the water…
…and precipitates once it cools and becomes heavy…
…then collects in and on the earth.
…that goes into the air and
condenses…
Thus, completing The Water Cycle!
Return to Table of Contents
Return to Table of Contents
What does this all mean? What IS The Water Cycle?
The Water Cycle is the
Earth’s way of
recycling the water on
our planet!
Return to Table of Contents
Now, it’s time to…
Take the online quiz to see how much you’ve learned!
Simply click on the picture above to get started!
When you’re finished, print your results & return to this presentation.
Return to Table of Contents
The Water Cycle SongPractice this song!
We will sing & perform this song together next class!
Set to “She’ll Be Coming ‘Round the Mountain”
Water travels in a cycle, yes it does!
(In class, we’ll hold hands and walk in a circle)
Water travels in a cycle, yes it does!
(In class, we’ll hold hands and walk in a circle)
Return to Table of Contents
The Water Cycle SongIt goes up as evaporation
(hands straight up)
Return to Table of Contents
The Water Cycle Song
Forms clouds of condensation(hands clasp together)
Return to Table of Contents
The Water Cycle SongFalls down as precipitation, yes it does!
(Bring hands down & wiggle, imitating rainfall)
Return to Table of Contents
THE ENDYou have successfully completed
this presentation on The Water Cycle! Make sure to print out your quiz results. Your homework assignment is to write a
1-paragraph paper about your favorite process of The Water Cycle & why. Bring both your results and paper to class.