Download The Water Cycle - Anderson, Caroline

The Water Cycle
By: Carol Harlow Anderson
Water
• Look at this glass of water carefully
• Can you guess how old this water is?
• This water could have fallen from the snow
and rain from a few days ago.
• BUT, the water itself has been around since
the beginning of the earth.
• When fish first crawled out of the ocean,
this glass of water was part of that ocean.
• When dinosaurs drank from ponds and
rivers, this glass of water was part of those
ponds and rivers.
• When kings, princesses, knights and squires
drank from the well, this glass of water was
part of those wells.
• The earth has a limited amount of water.
• The water keeps going around and around.
• This is what we call the Water Cycle.
Evaporation, Condensation
Precipitation, & Collection
These are the four stages of the
water cycle
Evaporation
• The sun heats up ocean, lake, or river water
and turns it into steam (vapor).
• This vapor leaves the ocean, lake, or river
and goes into the air.
Do plants
sweat?
Sort of. People sweat
(lose water) and
plants transpire.
Transpiration is the
process where plants
lose water to the air
from their leaves.
Transpiration gives
evaporation help in
getting water vapor
into the air.
Condensation
• Water vapor cools in the air.
• It changes into clouds.
• You can do this at home:
– Pour cold water in a glass on a hot day.
– Notice the water on the outside of the glass.
– This is water from the air! Vapor from the warm air
turned into liquid when it touched the cold glass.
Precipitation
• When so much water condenses in the air
that it cannot be held anymore, it falls as
precipitation.
• Clouds form and water falls back to earth as
either rain, hail, sleet, or snow.
Collection
• When water falls back to earth as
precipitation, it ends up in oceans, lakes,
rivers or on land.
• When water ends up on land, it is either
soaked up into the soil and becomes “ground
water” that is used by plants and animals OR
it runs off into lakes, rivers, or oceans.
The Water Cycle
Evaporation
Collection
Condensation
Precipitation
Water Cycle Review
Question 1
After snow falls the next morning you notice
“smoke” rising from the snow. This is called…
A. Collection
B. Evaporation
C. Condensation
D. Precipitation
Question 2
There is a thunderstorm. You see rain and
hail. What do you call this?
A. A bad storm
B. Condensation
C. Evaporation
D. Precipitation
Question 3
Plants get their water from the ground. What
part of the water cycle is “ground water”
found?
A. Precipitation
B. Condensation
C. Collection
D. Evaporation
Question 4
You have to constantly refill your birdbath in
the garden all summer. What part of the water
cycle is this called?
A. Transpiration
B. Collection
C. Precipitation
D. Evaporation
Question 5
When a plant loses water to the warm air
outside, we call this
A. Transpiration
B. Sweating
C. Precipitation
D. Condensation
Sorry try again
Congratulations!
You now know a lot about
the water cycle.
References
• http://www.kidzone.ws/water
• http://www.teachertube.com/viewVideo.ph
p?video_id=69855