What is the Water Cycle?

Transcription

Editors:
Brian A. Jerome Ph.D.
Stephanie Zak Jerome
Assistant Editors:
Lyndsey Canfield
Louise Marrier
What is the
Water Cycle?
Graphics:
Fred Thodal
Teacher’s Guide
Visual Learning Company
1-800-453-8481
www.visuallearningco.com
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Use and Copyright:
The purchase of this video program entitles the user the right to reproduce or
duplicate, in whole or in part, this teacher’s guide and the black line master handouts
for the purpose of teaching in conjunction with this video, What is the Water Cycle?
The right is restricted only for use with this video program. Any reproduction or
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Copyright © 2011
ISBN 1-59234-726-1
2
Visual Learning Company 1-800-453-8481
A Message from our Company
2
Viewing Clearances
2
Use and Copyright
2
Student Learning Objectives
4
Assessment
4
Introducing the Program
5
Key Vocabulary
5
Program Viewing Suggestions
5
Video Script
6
Literature Connections
8
Answer Key to Student Assessments
9
Answer Key to Student Activities
9
What Do You Know Now?
10
What Have You Learned?
11
Video Review
12
Video Quiz
12
Word Find
13
Water Cycle
14
Water Cycle cont.
15
3
Student Learning Objectives
Upon viewing the video and completing the enclosed student activities,
students will be able to do the following:
• Understand that the water cycle involves the continual circular movement of water between Earth’s surface and the atmosphere.
• Explain that in the process of evaporation a liquid changes into a gas.
• Know that large amounts of water continually evaporate from lakes, rivers, and oceans.
• Understand that water vapor is in the air around us.
• List some common examples of water evaporating.
• Define condensation as the process of a gas changing into a liquid.
• Know that as water vapor rises in the atmosphere it cools and condenses into tiny liquid water droplets that form clouds.
• Define precipitation as water that falls to Earth from the atmosphere.
• List some examples of precipitation such as rain, snow, sleet, and hail.
• Given a diagram of the water cycle, identify and explain the main parts.
Assessment
What Do You Know Now? (p. 10):
This preliminary assessment is an assessment tool designed to gain an
understanding of students’ preexisting knowledge. It can also be used as a
benchmark upon which to assess student progress based on the objectives
stated on the previous pages.
What Have You Learned? (p. 11):
This post assessment can be utilized as an assessment tool following
student completion of the program and student activities. The results of
this assessment can be compared against the results of the preliminary
assessment to assess student progress.
Video Review (p. 12):
The Video Review can be used as an assessment tool or as a student
activity. There are two sections. The first part contains questions displayed
during the program. The second part consists of a five-question video quiz
to be answered at the end of the video.
4
Introducing the Program
Before showing the video put a glass of water on a table in front of students.
Ask them what would happen to the water in the glass over the next few days.
Some students may think that some of the water will disappear. Explain that
it will disappear over time. Write the term evaporation on the board.
Then ask students when the last time they were in a rainstorm or snowstorm.
Ask them where the snow or rain came from. Tell students that the rain
or snow they experienced came from a cloud. And the water in the cloud
evaporated from a lake, river, the ocean, or a mud puddle. Tell students to
pay close attention to the video to learn more about how clouds form and the
water cycle.
Key Vocabulary
Cloud
Rain
Condensation
Evaporation
Hail
Sleet
Snow
Water cycle
Precipitation
Water vapor Program Viewing Suggestions
The student master “Video Review” is provided (p. 12) for distribution to
students. You may choose to have your students complete this Master
while viewing the program or do so upon its conclusion.
The program is approximately 10 to 12 minutes in length and includes a
five-question video quiz. Answers are not provided to the Video Quiz in the
video, but are included in this guide on page 9. You may choose to grade
student quizzes as an assessment tool or to review the answers in class.
The video is content-rich with numerous vocabulary words. For this reason
you may want to periodically stop the video to review and discuss new
terminology and concepts.
5
Video Script
1. Everyday you use water.
2. You use it to brush your teeth,
3. ...to wash yourself,...
4. ...to cook food,...
5. ...and to drink.
6. Water is very important, but have you ever thought about where water
comes from?
7. What are some of the different forms of water?
8. And how does water move from place to place?
9. During the next few minutes we’re going to answer these questions,
and others...
10. ...as we explore the water cycle.
11. Graphic Transition – What is a Cycle?
12. Maybe you enjoy riding a bicycle.
13. A bicycle has round tires.
14. The word “cycle” means round or circular.
15. The water cycle involves the continual circular movement of water
between Earth’s surface, the atmosphere, and then back to Earth.
16. Let’s take a closer look at the different parts of the water cycle.
17. Graphic Transition – Evaporation
18. Have you ever noticed that puddles eventually dry up after a rain
storm?
19. Maybe you’ve left a glass of water on a table and after a few days
you noticed that some of it has disappeared?
20. You Decide! Where did the water go?
21. The water went into the air in a process called evaporation.
22. In evaporation a liquid changes into a gas. In this case, liquid water
changed into water vapor.
23. Evaporation is a very slow process. So slow that you can’t actually
see it taking place.
24. But you can tell that evaporation has occurred by seeing how the
level of liquid water drops down over time.
25. On Earth, huge amounts of water continually evaporate from lakes,
rivers, ponds,
26. ...and from the vast oceans.
27. Water vapor is all around you in the air at this very moment.
6
Video Script
28. You’re even breathing it in!
29. Graphic Transition – Condensation
30. We just discussed that the air around us contains water vapor.
31. It’s possible for water vapor to change back into liquid water.
32. Let’s see how. We’ll put a cold drink on this table and wait a
few minutes.
33. You Observe! What formed on the sides of the glass?
34. That’s right, liquid water formed on the sides of the glass.
35. The water vapor surrounding the glass changed form into liquid
water as it cooled in a process called condensation.
36. Condensation is the process of a gas changing into a liquid.
37. Clouds are formed as a result of condensation.
38. As water vapor rises in the atmosphere, it cools.
39. The cooled water vapor condenses into tiny liquid water
droplets.
40. These tiny water droplets form clouds.
41. Graphic Transition – Precipitation
42. If you like to ski, snowmobile, or slide downhill then you enjoy
snow.
43. Snow is a form of precipitation.
44. Precipitation is water that falls to Earth from the atmosphere.
45. Rain is also a form of precipitation.
46. You Compare! How is rain different from snow?
47. Rain is a liquid. Snow is water in the form of crystals.
48. Precipitation can also be in the form of sleet or hail.
49. Precipitation occurs when enough water has condensed in
clouds to fall to Earth.
50. What happens to precipitation when it lands on Earth?
51. Once precipitation has landed on Earth it may flow into the
ground,
52. ...or it collects in lakes, rivers, and oceans.
53. From these bodies of water it eventually evaporates, starting
the water cycle all over again.
54. Graphic Transition – Video Review
55. During the past few minutes we explored the fascinating
features of the water cycle.
7
Video Script
56. We began by discussing the many important ways that we use water.
57. Next, we saw how the water cycle involves the continual movement
of water between Earth and the atmosphere.
58. We then discussed how liquid water changes into water vapor in the
process of evaporation.
59. We saw how water vapor can change into liquid water to form clouds
in the process of condensation.
60. Last, we took a look at how water returns to Earth from the
atmosphere in the form of precipitation...
61. ...completing our investigation of the fascinating water cycle.
62. Graphic Transition – Video Quiz
63. Fill in the correct word to complete the sentence.
64. 1. The water ______ takes the form of a circle.
65. 2. In _______ water changes from a liquid to a gas.
66. 3. _____ can form as a result of condensation.
67. 4. Snow is a form of __________.
68. 5. _____ is liquid precipitation.
Literature Connections
Kalman, Bobbie. Sjonger, Rebecca. El Ciclo Del Agua/The Water Cycle.
New York: Crabtree Publishing Company, 2006.
Koontz, Robin. Water Goes Round: The Water Cycle. Minnesota: Capstone Press, 2011.
Locker, Thomas. Water Dance. London: Sandpiper, 2002.
8
Morrison, Gordon. A Drop of Water. New York: Houghton Mifflin Books for Children, 2006
Olien, Rebecca. The Water Cycle (First Facts, Water All Around). Minnesota: Capstone Press, 2005. Visual Learning Company 1-800-453-8481
Answer Key to Student Assessments
What Do You Know Now? (p. 10)
What Have You Learned? (p. 11)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
earth
evaporation
a gas
water vapor
condensation
clouds
liquid water
precipitation
water vapor
liquid
condensation
precipitation
clouds
liquid
evaporation
water vapor
earth
liquid water
gas
water vapor
Video Review (p. 12)
Video Quiz (p. 12)
1. The water went into the air in a process called evaporation.
2. Liquid water formed on the sides of the glass.
3. Rain is a liquid. Snow is water in the form of crystals.
1.
2.
3.
4.
5.
cycle
evaporation
clouds
precipitation
rain
Answer Key to Student Activities
Word Find (p. 13)
Water Cycle Parts (p. 14)
1. air
2. land
3. water
Questions:
1. We drink water.
2. We breathe air.
3. We live on land.
Water Cycle Parts cont. (p. 15)
1. condensation
2. precipitation
3. evaporation
Questions:
1. Precipitation is water that falls to earth from the atmosphere.
2. Condensation is the process that causes clouds to form.
3. Examples of precipitation include snow, rain, sleet, and hail.
9
What Do You
Know Now?
Name:
Fill in the bubble next to the correct answer.
1.
2.
3.
4.
5.
The water cycle involves the
continual circular movement
of water between the atmosphere
and the:
moon
sun
earth
mercury
6.
As a result of condensation
what forms in the sky?
clouds
balloons
airplanes
dust
are made of tiny drops
7. Clouds
of:
Mud puddles drying up is an
example of:
evaporation
rain
condensation
sleet
8.
In evaporation a liquid changes
into:
a solid
ice
rain
a gas
9. Which is not a type of
Water in the form of a gas is
called:
precipitation
nitrogen
water vapor
ice
The process of a gas changing
into a liquid is:
evaporation
condensation
sublimation
freezing
10
pollen
air
nitrogen
liquid water
Water that falls to Earth from
the atmosphere is:
condensation
evaporation
precipitation
air
precipitation:
snow
water vapor
hail
sleet
10. Rain is different from snow.
Rain is a:
liquid
solid
gas
protist
What Have
You Learned?
Fill in the bubble next to the correct answer.
1.
2.
3.
4.
5.
The process of a gas changing
into a liquid is:
evaporation
condensation
sublimation
freezing
Water that falls to Earth from
the atmosphere is:
condensation
evaporation
precipitation
air
6. Water in the form of a gas is
called:
7. The water cycle involves the
As a result of condensation
what forms in the sky?
clouds
balloons
airplanes
dust
8.
Rain is different from snow.
Rain is a:
liquid
solid
gas
protist
9.
Mud puddles drying up is an
example of:
evaporation
rain
condensation
sleet
precipitation
nitrogen
water vapor
ice
continual circular movement
between the atmosphere and the:
moon
sun
earth
mercury
Clouds are made of tiny droplets
of:
pollen
air
nitrogen
liquid water
In evaporation a liquid changes
into a:
solid
ice
rain
gas
10. Which is not a type of
precipitation?
snow
water vapor
hail
sleet
11
Video Review
Name:
While you watch the video, answer these questions:
Decide!
1. You
Where did the water go?
You Observe!
2. What
formed on the sides of the glass?
You Compare!
3. How
is rain different from snow?
Video Quiz
After you watch the video, test your knowledge with these questions:
1. The water ______________ takes the form of a circle.
2. In _________________ water changes from a liquid to a gas.
3. ___________ can form as a result of condensation.
4. Snow is a form of ____________________.
5. _______________ is liquid precipitation.
12
Word Find
Find the following vocabulary words in the puzzle below.
Cloud
Condensation
Rain
Sleet
Evaporation
Snow
T
E
Y
U W S
M
V
J
B
R
A
E
P
P
L
Hail
Precipitation
Water cycle
Water vapor
Sheet1
D
Z
O
S
R
T
V
E
B W
F
N W
I
S
U
A
E
F
H
H
A
S
J
O
S
C
H
V
I
A
Z
A
X
T
A
S
T
W H
D
S
N
N
X W
I
D
E
O
J
F
U
X
S
L
E
E
T
S
T
L
U
R
L
R
P
R
E
C
I
P
I
T
A
T
I
O
N
V
Y
A
C
F
H
D
D
J
H
P
R
G
K
Y
S
A
E
T
U W A
T
E
R
C
Y
C
L
E
B
Z
P
G
I
L
I
J
P
J
C
Y
E
C
L
O
U
D
O
A
O
X
E
Q
K
M
F
I
T
Y
I
Z
L
M
R
E
N
K
C
O
N
D
E
N
S
A
T
I
O
N
Q
In the space provided below write three sentences about “The
Water Cycle” while using the vocabulary words listed above.
13
Water Cycle
Name:
Directions:
Label the drawing below using these words: water, land, and air.
1.
2.
3.
Questions
1. What do you drink?
2. What do you breathe?
3. Where do you live?
14
Water Cycle cont.
Directions:
Now label the following processes in the wate cycle: evaporation,
condensation, and precipitation.
1.
3.
2.
Questions
1. What is precipitation?
2. What process causes clouds to form?
3. Give two examples of precipitation.
15

What is the Water Cycle?

Transcription

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