Name: _________________________________Date: __________________________________

POWERPOINT WORKSHEET

THE IMPORTANCE OF WATER

1. How much of the Earth is covered in water?

2. What is special about Earth’s aquatic ecosystems?

3. What is phytoplankton and why is it important?

THE DISTRIBUTION OF EARTH’S WATER

4. What is the distribution of the salt water and fresh water on this planet?

5. How much fresh water is easily available to be used?

WATER WITHIN LIVING THINGS

6. How much water is found in each of the following organisms?a) human ___ %b) potato ___ %c) tomato ___ %

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THE WATER CYCLE DIAGRAM

7. Label the components and processes in the water cycle diagram below.

8. What is a glacier?

9. What is an iceberg? Describe one interesting fact about icebergs.

10. What is an aquifer? Describe two ways the water from aquifers can be accessed.

2. Define each of the following processes in the water cycle and answer the questions for the processes.

Processes Definitions and Questions

a) evaporationDefinition:

b) meltingDefinition:

c) freezingDefinition:

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Processes Definitions and Questions

d) sublimation

Definition:

How is wet laundry able to dry outside in the winter time?

e) depositionDefinition:

f) condensation

Definition:

Why can you see your breath in the winter time but not in the summer time?

g) transpiration

Definition:

How is transpiration involved in cloud formation?

h) precipitation

Definition:

Which form of precipitation is the largest?

i) percolation

Definition:

How would deforestation effect percolation?

j) run-off

Definition:

What are three destructive effects of run-off?

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HUMAN IMPACT ON THE WATER CYCLEGLOBAL WARMING

3. What is global warming?

4. How do the melting icecaps and glaciers lead to more global warming?

5. How do the melting icecaps and glaciers lead to a change in ocean currents?

DEFORESTATION

6. What is deforestation?

7. What effect does deforestation have in drier climates?

8. What effect does deforestation have in wetter climates?

CLIMATE CHANGE

9. What is climate change?

10. Describe two ways that climate change can affect precipitation.

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Created by Anh-Thi Tang – Tangstar ScienceCopyright © May 2013 Anh-Thi Tang (a.k.a. Tangstar Science)

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