Visualizing Environmental Science

443

0

10

20

30

40

50

60

70

80

Incandescent

Energy use (watts)

Compact

fluorescent

Light-

emitting

diode

Energy Required by Different Light Bulbs to Produce
890 Lumens of Light

Based on data from National Renewable Energy Lab (2009).

Tyrone Turner/NG Image Collection

CHAPTER PLANNER✓✓

❑ Study the picture and read the opening story.

❑ Scan the Learning Objectives in each section:

p. 444 ❑ p. 450 ❑ p. 456 ❑ p. 458 ❑

❑ Read the text and study all figures and visuals.

Answer any questions.

Analyze key features

❑ Process Diagram, p. 444

❑ What a Scientist Sees, p. 446

❑ Environmental InSight, p. 453

❑ EnviroDiscovery, p. 461

❑ Case Study, p. 463

❑ Stop: Answer the Concept Checks before

you go on:

p. 449 ❑ p. 455 ❑ p. 457 ❑ p. 462 ❑

End of Chapter

❑ Review the Summary and Key Terms.

❑ Answer What is happening in this picture?

❑ Answer the Critical and Creative Thinking Questions.

CHAPTER OUTLINE

Direct Solar Energy 444

s Heating Buildings and Water

s Photovoltaic Solar Cells

■ What a Scientist Sees: Photovoltaic Cells

s Solar Thermal Electric Generation

s Solar-Generated Hydrogen

Indirect Solar Energy 450

s Biomass Energy

s Wind Energy

■ Environmental InSight: Wind Energy

s Hydropower

Other Renewable Energy Sources 456

s Geothermal Energy

s Ground-Effect Heat Pumps

s Tidal Energy

Energy Solutions: Conservation and Efficiency 458

s Energy Consumption Trends and Economics

s Energy-Efficient Technologies

■ EnviroDiscovery: Netting the Benefits of Home

Energy Production

s Electric Power Companies and Energy Efficiency

s Energy Conservation at Home

■ Case Study: Green Architecture

Interpreting Data

How many compact fluorescent bulbs could you power

with the energy needed for one incandescent bulb?