Water Cycle

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Water Cycle

• Presented by Darlene Devendorf
• OCMBOCES Science Center

Graphic http//water.tamu.edu/index.html (Texas
AM Univ)
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Where Is Water? p.13
Where is water in our world? Is water always
liquid in our world?
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Where is water in NYS?
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Where is water in the USA?
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Where is water in the USA?
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Where is water in N. America?
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Where is water in the world?
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Google Maps or Earth
Install Google Earth 3-D Plugin
Google Maps - Baldwinsville
Google Earth 5
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Is water always liquid in our world?
6 oz. Paper cup Or 1 oz. plastic cup
My Name
Can I change the state of this liquid to a solid?
How?
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Where Is Water Session 2
Bring in cups from freezer.
Water freezes to a solid at 32 F. Solid water or
ice floats in liquid water. Solid water is found
on solid ground and floating on ponds, lakes,
oceans
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Water Chart
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Water in Soil p. 23Where else can water be
found on Earth?
DEMO Sponge Water in 1-pint container
Compare the sponge before and after it is placed
in water. Where is the water now? absorbed
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Water in soil.
SOIL
measure the mass (how much matter there is)

1. Poke holes in the bottom of 6 oz. cup with a
   pencil (4 5)
2. Place soil in 6 oz. cup
3. Observe soil properties
4. Place 150 cc of water in grad. Tumbler
5. Hold 6 oz. cup with soil over the 8 oz. cup.
   Pour 150 cc into the soil.
6. Observe water movement.
7. When water has stopped moving, measure the amount
   of water in the 8 oz. cup.

Where else on Earth is there water? How does it
get into the soil?
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Water Chart p. 27
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Water in Plants p. 31
Bridge Review where we have located water in
our world so far. Ask, Where else in our world
may there be liquid water stored?

• Students are going to use their powers of
  inference and reasoning to explore the presence
  of water in plants. They will do this by
• Placing cut pieces of fruits and /or vegetables
  on to a sheet of white paper. Outlining the
  pieces on the paper. Dont forget the piece of
  dry sponge.
• Making observations over a few days as to any
  changes in the shape or size of the pieces.
• Making inferences in order to draw a conclusion
  as to why any changes occur.

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How can we infer that there is water in
plants?Is there water in other living things,
like people?
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Water Chart p. 35
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Evaporating Water p.39What do we call the
process where a liquid changes to a gas?
Bridge Where did the water go when we dried out
the fruits/vegetables? (Assess class for
knowledge of terms gas, water vapor, evaporate,
change state) Apply What would happen to the
water in a towel that we hug to dry out? What
would happen to the water in glass that we left
out on a counter?
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Evaporating Water p. 39
KEY CONCEPT Energy is needed for water to
change state from a liquid to a gas, increasing
the energy powers more liquid water to go to the
gas state --- leading to The Suns energy
drives the evaporation part of the water cycle.
Temperature measures the amount of energy , at
room temp. there is a level of energy as measured
by the temperature.
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Evaporating Water p. 39
KEY CONCEPT Energy is needed for water to
change state from a liquid to a gas, increasing
the energy powers more liquid water to go to the
gas state --- leading to The Suns energy
drives the evaporation part of the water cycle.
Temperature measures the amount of energy , at
room temp. there is a level of energy as measured
by the temperature.
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Puddle Watching p.45
Observe a puddle after a rainfall or create a
puddle to observe. Observe one or two that are
in different places. Outline the puddle each
day. Take a digital picture? Make a
prediction. What is the temperature like near
the puddle? Are the days sunny or cloudy? Is
the puddle in the sun or in the shade? Compare
the puddle from Day 1 to Day 5. Compare the two
puddles.
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Water Chart p. 49
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More Water Into The AirWhere else in the world
does evaporation occur besides from standing
water?
Bridge from previous activities esp. Act. 3 and 4
- Potted plant (not recently watered) Look at
soil around plant, add some water to soil,
discuss where the water goes when poured into the
soil.
Give each team of students a sheet of white
paper, small 1-oz. plastic cup of water and
tumbler of potting soil. Have the students
moisten the soil with the water (add more if
needed). Write names on white paper and dump the
soil onto the paper. Spread the soil out. Place
the samples under a light source (and some not in
the light?). Observe the soil the next day.
Think about Where are you going to place the
soil samples? Do this on a Friday afternoon?
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More Water Into The AirWhere else in the world
does evaporation occur besides from standing
water?
How did the water get into the bag? Can we infer
that it came from the plant? Yes There are
droplets of liquid, is the plant leaking liquid
water? No, water is evaporating from the plant
into the air in the bag. Think about it.
(Bridge to Act. 8) When you see water on the
inside of a window or the outside of a glass,
where did it come from? Hmmm, lets find out.
This next part can be done with an indoor plants
or with outdoor plants, shrubs, trees Are there
a variety of classroom, offices around that
school that have plants? (This activity should
not harm the plant.) Placing the plant in a
sunny window or under a light will help the
process.
Transpiration evaporation of water from plants
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More Water Into The AirWhere else in the world
does evaporation occur besides from standing
water?
How did the water get into the bag? Can we infer
that it came from the plant? Yes There are
droplets of liquid, is the plant leaking liquid
water? No, water is evaporating from the plant
into the air in the bag. Think about it.
(Bridge to Act. 8) When you see water on the
inside of a window or the outside of a glass,
where did it come from? Hmmm, lets find out.
This next part can be done with an indoor plants
or with outdoor plants, shrubs, trees Are there
a variety of classroom, offices around that
school that have plants? (This activity should
not harm the plant.) Placing the plant in a
sunny window or under a light will help the
process.
Transpiration evaporation of water from plants
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Water Chart p. 58
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Condensing Water p.69What do we call the process
where a gas changes to a liquid?
Ice Required

1. Observe empty dry tumbler (answer qu. 1)
2. Put very cold (red) ice water into tumbler
3. Make observations (answer qu. 2 5)
4. Modification Fill second tumbler with very
   warm water, pour cold water out of the first
   tumbler into the graduated tumbler and then pour
   the warm water in. Answer qu. 6.

Each team of students 2 Plain tumblers Graduated
tumbler Red colored ice water Very warm tap water
Where else in the world does this occur? Relate
to previous plant activity.
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Water Chart p. 74
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A Model Cloud p. 77What process causes clouds to
form?
Each team of students Tumbler Lid Warm
water Graduated tumbler Ice Black paper rectangle

• Steps
• Fill a tumbler with warm water, let it stand for
  several minutes.
• Place ice on the lid. Pour MOST of the water out
  of the tumbler. Place the lid on top.
• Open the lid a crack, enough to drop in a lit
  match.
• Place the black paper behind the tumbler and make
  your observations.

The Art of Science
Ice Required
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Water Chart p. 81
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A Terrarium p. 91
Where can water be found in a terrarium? How
might water move within the terrarium? How does
this compare to the natural world?
Watersheds?
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Summing Up the Water Cycle
precipitation
run off ground water
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Evaporating and Condensing p. 99
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The Water Cycle p. 107
Alaska Mts.
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Applying the Water Cycle Concepts
Grand Tetons, WY
Mount Marcy, NY
Evaporation off a lake
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The Water Cycle
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Notes

• Act. 7 Set up container with cobalt paper.
• Act. 8 Condensing water (distribute warm water
  while teachers are doing condensation activity.