Active Reading Chap 18 Sec 1 (1) 4y6i11
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Skills Worksheet
Active Reading Section: Renewable Energy Today Read the age below and answer the questions that follow.
Solar cells, also called photovoltaic cells, convert the sun’s energy into electricity. Solar cells were invented more than 120 years ago, and now they are used to power everything from calculators to space stations. Solar cells have no moving parts, and they run on nonpolluting power from the sun. So why don’t solar cells meet all of our energy needs? A solar cell produces a very small electrical current. So meeting the needs of a small city would require covering hundreds of acres with solar s. Solar cells also require extended periods of sunshine to produce energy. This energy is stored in batteries, which supply electricity when the sun is not shining. Despite these limitations, energy production from solar cells has doubled every four years since 1985. Solar cells have become increasingly efficient and less expensive. Solar cells have great potential for use in developing countries, where energy consumption is minimal and electricity networks are limited. Currently, solar cells provide energy for more than 1 million households in the developing world. IDENTIFYING MAIN IDEAS
One reading skill is the ability to identify the main idea of a age. The main idea is the main focus or key idea. Frequently, a main idea is accompanied by ing information that offers detailed facts about main ideas. In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question.
______ 1. Solar cells convert the sun’s energy into a. light. b. heat. c. electricity. d. pollution. ______ 2. What factor regarding solar cells has doubled every four years since 1985? a. the number of solar cells produced b. the amount of energy produced by solar cells c. the number of people who use solar cells d. the price of solar cells ______ 3. Solar cells have great potential for use in a. cities. c. factories. b. private homes. d. developing countries. Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor .
Holt Environmental Science
7
Renewable Energy
Name________________________________Class____________________Date____________________
Active Reading continued RECOGNIZING SIMILARITIES AND DIFFERENCES
One reading skill is the ability to recognize similarities and differences between two phrases, ideas, or things. This is sometimes known as comparing and contrasting. Read the following questions and write the answers in the space provided.
4. How are solar cells different from most other power sources? _______________________________________________________________ _______________________________________________________________ 5. How are solar cells of today superior to solar cells of the 1980s? _______________________________________________________________ _______________________________________________________________ VOCABULARY DEVELOPMENT In the space provided, write the letter of the definition that best matches the term or phrase.
______ ______ ______ ______
6. photovoltaic cells 7. solar s 8. energy consumption 9. batteries
a. b. c. d.
power usage store energy collected by solar cells convert the sun’s energy into electricity collections of solar cells
RECOGNIZING CAUSE AND EFFECT
One reading skill is the ability to recognize cause and effect. Read the following questions and write the answers in the space provided.
10. How are solar cells used today? _______________________________________________________________ _______________________________________________________________ 11. Why are solar cells particularly suitable for developing countries? _______________________________________________________________ _______________________________________________________________ 12. Why aren’t solar cells used to meet all of our energy needs? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor .
Holt Environmental Science
8
Renewable Energy
TEACHER RESOURCE PAGE nonpolluting. Students should also indicate that damming rivers may damage ecosystems.
Active Reading SECTION: RENEWABLE ENERGY TODAY
Quiz
1. 2. 3. 4.
c b d They have no moving parts and run on nonpolluting power from the sun. 5. Today’s solar cells are more efficient and less expensive. 6. c 7. e 8. a 9. b 10. Solar cells supply energy to homes, space stations, and common objects such as calculators. 11. In developing countries, energy consumption is minimal and electricity networks are limited. 12. Solar cells produce only a small amount of electricity; thus, acres of them would be needed to supply energy for a small city. Also, solar cells require extended periods of sunlight.
SECTION: RENEWABLE ENERGY TODAY Matching 1. b 2. d 3. e 4. a 5. c
SECTION: ALTERNATIVE ENERGY CONSERVATION Matching 1. b 2. a 3. d 4. e 5 .c
5. 6. 7. 8. 9.
10.
Multiple Choice 6. a 7. c 8. d 9. c 10. b
Chapter Test General MATCHING 1. 2. 3. 4. 5.
SECTION: ALTERNATIVE ENERGY AND CONSERVATION 1. 2. 3. 4.
Multiple Choice 6. c 7. a 8. a 9. d 10. b
d b c Energy efficiency refers to using energy without wasting it. Insulation protects homes from energy loss. c a windows, doors, walls, and the roof A person can hold a ribbon up to the edges of windows and doors. If the ribbon flutters, there is a leak. It is lost when heated or cooled air escapes through gaps around windows and doors.
a e c b d
MULTIPLE CHOICE 6. 7. 8. 9. 10. 11. 12. 13.
c c d a a c d d
14. 15. 16. 17. 18. 19. 20.
b a d c c b a
Chapter Test Advanced MATCHING MULTIPLE CHOICE
Map Skills
1. 2. 3. 4. 5
1. New York, Washington, Oregon 2. less than 3. Answers will vary depending on geographic location. 4. Answers may vary. Students should mention that hydroelectric power is renewable energy and relatively
b c d e .a
6. 7. 8. 9. 10.
b c a d c
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor .
Holt Environmental Science
85
Renewable Energy
Skills Worksheet
Active Reading Section: Renewable Energy Today Read the age below and answer the questions that follow.
Solar cells, also called photovoltaic cells, convert the sun’s energy into electricity. Solar cells were invented more than 120 years ago, and now they are used to power everything from calculators to space stations. Solar cells have no moving parts, and they run on nonpolluting power from the sun. So why don’t solar cells meet all of our energy needs? A solar cell produces a very small electrical current. So meeting the needs of a small city would require covering hundreds of acres with solar s. Solar cells also require extended periods of sunshine to produce energy. This energy is stored in batteries, which supply electricity when the sun is not shining. Despite these limitations, energy production from solar cells has doubled every four years since 1985. Solar cells have become increasingly efficient and less expensive. Solar cells have great potential for use in developing countries, where energy consumption is minimal and electricity networks are limited. Currently, solar cells provide energy for more than 1 million households in the developing world. IDENTIFYING MAIN IDEAS
One reading skill is the ability to identify the main idea of a age. The main idea is the main focus or key idea. Frequently, a main idea is accompanied by ing information that offers detailed facts about main ideas. In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question.
______ 1. Solar cells convert the sun’s energy into a. light. b. heat. c. electricity. d. pollution. ______ 2. What factor regarding solar cells has doubled every four years since 1985? a. the number of solar cells produced b. the amount of energy produced by solar cells c. the number of people who use solar cells d. the price of solar cells ______ 3. Solar cells have great potential for use in a. cities. c. factories. b. private homes. d. developing countries. Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor .
Holt Environmental Science
7
Renewable Energy
Name________________________________Class____________________Date____________________
Active Reading continued RECOGNIZING SIMILARITIES AND DIFFERENCES
One reading skill is the ability to recognize similarities and differences between two phrases, ideas, or things. This is sometimes known as comparing and contrasting. Read the following questions and write the answers in the space provided.
4. How are solar cells different from most other power sources? _______________________________________________________________ _______________________________________________________________ 5. How are solar cells of today superior to solar cells of the 1980s? _______________________________________________________________ _______________________________________________________________ VOCABULARY DEVELOPMENT In the space provided, write the letter of the definition that best matches the term or phrase.
______ ______ ______ ______
6. photovoltaic cells 7. solar s 8. energy consumption 9. batteries
a. b. c. d.
power usage store energy collected by solar cells convert the sun’s energy into electricity collections of solar cells
RECOGNIZING CAUSE AND EFFECT
One reading skill is the ability to recognize cause and effect. Read the following questions and write the answers in the space provided.
10. How are solar cells used today? _______________________________________________________________ _______________________________________________________________ 11. Why are solar cells particularly suitable for developing countries? _______________________________________________________________ _______________________________________________________________ 12. Why aren’t solar cells used to meet all of our energy needs? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor .
Holt Environmental Science
8
Renewable Energy
TEACHER RESOURCE PAGE nonpolluting. Students should also indicate that damming rivers may damage ecosystems.
Active Reading SECTION: RENEWABLE ENERGY TODAY
Quiz
1. 2. 3. 4.
c b d They have no moving parts and run on nonpolluting power from the sun. 5. Today’s solar cells are more efficient and less expensive. 6. c 7. e 8. a 9. b 10. Solar cells supply energy to homes, space stations, and common objects such as calculators. 11. In developing countries, energy consumption is minimal and electricity networks are limited. 12. Solar cells produce only a small amount of electricity; thus, acres of them would be needed to supply energy for a small city. Also, solar cells require extended periods of sunlight.
SECTION: RENEWABLE ENERGY TODAY Matching 1. b 2. d 3. e 4. a 5. c
SECTION: ALTERNATIVE ENERGY CONSERVATION Matching 1. b 2. a 3. d 4. e 5 .c
5. 6. 7. 8. 9.
10.
Multiple Choice 6. a 7. c 8. d 9. c 10. b
Chapter Test General MATCHING 1. 2. 3. 4. 5.
SECTION: ALTERNATIVE ENERGY AND CONSERVATION 1. 2. 3. 4.
Multiple Choice 6. c 7. a 8. a 9. d 10. b
d b c Energy efficiency refers to using energy without wasting it. Insulation protects homes from energy loss. c a windows, doors, walls, and the roof A person can hold a ribbon up to the edges of windows and doors. If the ribbon flutters, there is a leak. It is lost when heated or cooled air escapes through gaps around windows and doors.
a e c b d
MULTIPLE CHOICE 6. 7. 8. 9. 10. 11. 12. 13.
c c d a a c d d
14. 15. 16. 17. 18. 19. 20.
b a d c c b a
Chapter Test Advanced MATCHING MULTIPLE CHOICE
Map Skills
1. 2. 3. 4. 5
1. New York, Washington, Oregon 2. less than 3. Answers will vary depending on geographic location. 4. Answers may vary. Students should mention that hydroelectric power is renewable energy and relatively
b c d e .a
6. 7. 8. 9. 10.
b c a d c
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor .
Holt Environmental Science
85
Renewable Energy
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