Water cycle lesson

1. The Water Cycle

2. Photo Prediction
 Look at each photo
 Predict what you believe each
photo represents
 Write your personal response to
these images in your reflection
log
 Share your thoughts with the
members of your group and later
with the group at large

7. ANTICIPATORY GUIDE
Agree/Disagree
1. The Earth has a limited amount of water.
2. The water you drink today is the same
water that has been around since the
beginning of the Earth.
3. Most of the Earth’s water exists in its
oceans.
4. On a global scale, the amount of water
evaporating is more than the amount of
water delivered to the Earth as precipitation.
5. The water cycle begins in the ocean and
keeps moving and later reenters the ocean.

8. FIND THE MEANING
to sublimate is to …
a. bring under control
b. convert between the solid and the
gaseous phases of matter, with no
intermediate liquid stage
c. to give up or surrender
Ice and snow can sublimate directly into water
vapor.

9. FIND THE MEANING
to condense is…
a. to be patronizing or disdainful
b. to find legally guilty or unfit
c. to form liquid from a gas
The vapor rises into the air where cooler
temperatures cause it to condense into clouds.

10. DIRECTED READING WITH
NUMBERS
The Water Cycle
1. What did you read about the
water cycle? (pg. 1)
2. Look at the visual
representation of the water
cycle. List the terms that may
be unfamiliar or difficult for you
to explain.

12. Components of the Water
Cycle
 The U.S. Geological Survey (USGS) has
identified 16 components of the water cycle.
 You will work in pairs and study one
component of the water cycle and create a
poster to share out with the class.
 Your poster will include a
– 1) definition
– 2) how water changes or moves over time (from
one component to another)
– 3) graphic representation and,
– 4) three important facts

13. Example: Global Water
DDeifinsittiorni: bThue twioorldn’s total water supply of about 332.6
million cubic miles of water represents the
presence of the Earth’s water at a single point in
time.
Changes Over Time:
Due to global “warm spell,” the water levels of the seas
have changed due to the melting of the ice caps and
thereby affecting the distribution of water.
Graphic/Symbol/Drawing:
Other Important Facts:
– Over 96% of the world’s water is saline
– Fresh surface-water sources (rivers/lakes) constitute
0.0067% of total water, the source of most of the
water people us everyday

14. Components of the Water
C1. yclWeater storage in oceans (3-4)
2. Evaporation (4-5)
3. Sublimation (5-6)
4. Evapotranspiration (6-7)
5. Water in the atmosphere (7-8)
6. Condensation (8-9)
7. Precipitation (9-11)
8. Water storage in ice and snow (11-12)
9. Snowmelt runoff to streams (13-14)
10. Surface runoff (14-15)
11. Streamflow (15-16)
12. Freshwater storage (16-17)
13. Infiltration (17-18)
14. Groundwater storage (19-20)
15. Groundwater discharge (20-21)
16. Springs (21-23)

15. Components of the Water
Cycle
 Read your section quietly
 Discuss the section with your
partner
 Develop/Decide on the…
1. definition
2. Physicals changes of water
3. graphic representation, symbol or drawing
4. other important facts
 Create your poste

16. ANTICIPATORY GUIDE
Agree/Disagree
1. The earth has a limited amount of
water. (Agree)
The earth has a limited amount of water. That
water keeps going around and around and around
and around and (well, you get the idea) in what
we call the "Water Cycle".

17. ANTICIPATORY GUIDE
Agree/Disagree
2. The water you drink today is the
same water that has been around
since the beginning of the Earth.
(Agree)
The water in your glass may have fallen from the sky
as rain just last week, but the water itself has been around
pretty much as long as the earth has! When the first fish
crawled out of the ocean onto the land, your glass of water
was part of that ocean. When the Brontosaurus walked
through lakes feeding on plants, your glass of water was
part of those lakes. When kings and princesses, knights
and squires took a drink from their wells, your glass of
water was part of those wells.
And you thought your parents were OLD!

18. ANTICIPATORY GUIDE
Agree/Disagree
3. Most of the Earth’s water exists in its
oceans. (Agree)
It is estimated that about 96.5% of the
world’s water supply is stored in the
oceans. The oceans supply
approximately 90% of the evaporated
water that goes into the water cycle.

19. ANTICIPATORY GUIDE
Agree/Disagree
4. On a global scale, the amount of
water evaporating is more than the
amount of water delivered to the
Earth as precipitation. (Disagree)
Actually, on a global scale, the amount of water
evaporating is about the same as the amount of water
delivered to the Earth as precipitation. This does vary
geographically. Evaporation is more prevalent over the
oceans than precipitation, while over the land, precipitation
routinely exceeds evaporation. Most of the water that
evaporates from the oceans falls back into the oceans as
precipitation.

20. ANTICIPATORY GUIDE
Agree/Disagree
5. The water cycle begins in the ocean
and keeps moving and later reenters
the ocean. (Disagree)
The water cycle has no starting point,
even though most of the Earth’s water
exists in the oceans.

21. Water, water everywhere,
but not a drop to drink!
How much water do we use
iUnse othen “Wea tder aFayct?s” to calculate your water use
indoors during a 24-hour day. You may begin by
monitoring the water you have used since you
woke up this morning. Continue monitoring your
water use until you go to bed tonight.
Write a personal response to what you discovered.
What did you learn? Share the results of what
you charted with the members of your group.
Write your final reflections in a short paragraph
answering the following: What did you learn from
this investigation? What can you do personally to
conserve water?