Name
Name Date Class
Water on Earth
1. compare and contrast How did the temperature of the water
compare to the temperature of the air in the room?
2. predict Do you think the same result would have occurred with a
glass of warm water? Explain your answer.
3. relate cause and effect How could your observations apply to water
molecules in the air?
4. infer What sort of weather does this experiment model?
Name Date Class
Water on Earth
I get it! Now I know that living things use water
I need extra help with
1a. list What are four main sources of fresh water on Earth?
b. make judgments Which freshwater source do you think is most
important to people? Why?
I get it! Now I know that Earth’s water is found in
I need extra help with
Name Date Class
Water on Earth
2a. identify What are the three major steps in the water cycle?
b. sequence Start with a puddle on a sunny day. How might water move
through the water cycle and actually fall as rain?
I get it! Now I know that the water cycle is
I need extra help with
Name Date Class
Water on Earth
1. Identify two ways in which water is important to living things.
2. What is the percent of fresh water and salt water on Earth and
where is each type found?
The diagram below shows the water cycle. Use the diagram to answer Questions 3–5.
3. What process is shown at point A?
4. What process is shown at point B?
5. What process is shown at point C?
|6. groundwater |7. water cycle |8. transpiration |
Name Date Class
Water on Earth
Evaporation, Precipitation, and Runoff
The diagram below shows the yearly global flow of water through the water cycle. The numbers
represent the amounts of evaporation and precipitation over the oceans and over the land.
1. What is the total amount of global evaporation?
2. What is the total amount of global precipitation?
3. How does the total amount of global precipitation compare to the
total amount of global evaporation?
4. Where does more evaporation occur, from the oceans or from the
land? Explain.
5. Where does more precipitation occur, over the oceans or over the
land? Explain.
6. Do Earth’s oceans gain or lose water, considering evaporation and
precipitation together? How much?
7. Do Earth’s continents gain or lose water, considering evaporation
and precipitation together? How much?
8. Compare the differences in evaporation and precipitation over
Earth’s oceans and land. How are they related?
Name Date Class
Water On Earth
If the statement is true, write true. If the statement is false, change the underlined word
or words to make the statement true.
1. Plants use water, carbon dioxide, and energy to make food in a
process called transpiration.
2. The process by which water falls to Earth as rain, snow, hail, or
sleet is called condensation.
3. In the process of evaporation, water molecules at the surface of
a liquid absorb enough energy to change to a gas called water vapor.
4. In the process of precipitation, water vapor in air cools and
becomes water droplets that clump around particles in air to form clouds.
5. Plants give off water vapor through their leaves in a process
called photosynthesis.
Fill in the blank to complete each statement.
6. About 97 percent of water on is Earth is found in and salt lakes.
7. More freshwater exists as than is found in all of Earth’s rivers
and lakes.
8. The water cycle is driven by energy from the sun and .
9. The place in which an organism lives and obtains the things it needs to survive is its
.
10. Most of Greenland is covered by fresh water that is .
-----------------------
Inquiry Warm-Up, Where Does the Water Come From?
In the Inquiry Warm-Up, you investigated how condensation appears on a glass. Using
what you learned from that activity, answer the questions below.
Why Is Water Important?
Where is Water Found?
What Is the Water Cycle
Understanding Main Ideas
Answer the following questions on a separate sheet of paper.
Building Vocabulary
On a separate sheet of paper, write a definition for each of these terms.
All the water on Earth flows through the water cycle. Read the passage and look at the
diagram below. Then answer the questions that follow on a separate sheet of paper.
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