CONTENTS Timeline. . . iv Introduction Meet Benjamin Franklin . . . 1 Chapter 1 The Science of Spare Time . . . 12 Chapter 2 Heat & Light . . . 26 Chapter 3 Zap: It’s Electric! . . . 42 Chapter 4 Home is Where Design Happens . . . 62
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Chapter 5 Mailings & Maps . . . 76
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Chapter 6 Health . . . 93 Glossary • Metric Conversions Resources • Selected Bibliography Essential Questions • Index
