Sound and Light 12
Nature of Science:Sonic Booms 12
Chapter 1 Characteristics of Waves 16
1 What Are Waves? 18
2 Properties of Waves 22
3 Interactions of Waves 28
4 Integrating Earth Science:Seismic Waves 36
Chapter 2 Sound 42
1 The Nature of Sound 44
2 Properties of Sound 50
3 Combining Sound Waves 56
4 Integrating Life Science:How You Hear Sound 66
5 Applications of Sound 70
Chapter 3 The Electromagnetic Spectrum 78
1 The Nature of Electromagnetic Waves 80
2 Waves of the Electromagnetic Spectrum 84
3 Producing Visible Light 94
4 Integrating Technology:Wireless Communication 100
Chapter 4 Light 114
1 Reflection and Mirrors 116
2 Refraction and Lenses 121
3 Color 127
4 Integrating Life Science:Seeing Light 133
5 Using Light 137
Interdisciplinary Exploration:The Magic of the Movies 150
Reference Section 156
Skills Handbook 156
Think Like a Scientist 156
Making Measurements 158
Conducting a Scientific Investigation 160
Thinking Critically 162
Organizing Information 164
Creating Data Tables and Graphs 166
Appendix A:Laboratory Safety 169
Glossary 172
Index 176
Acknowledgments 179
Inquiry Activities 17
CHAPTER PROJECT 17
Opportunities for long-term inquiry 17
Chapter 1:Over and Over and Over Again 17
Chapter 2:Music to Your Ears 43
Chapter 3:You're on the Air 79
Chapter 4:What a Sight! 115
DISCOVER 18
Exploration and inquiry before reading 18
How Do Waves Travel? 18
How Can Yon Change a Wave? 22
How Does a Ball Bounce? 28
Can You Find the Sand? 36
What Is Sound? 44
How Does Amplitude Affect Loudness? 50
How Can You Produce Patterns of Sound? 56
Where Is the Sound Coming From? 66
How Can You Use Time to Measure Distance? 70
How Does a Beam of Light Travel? 80
What Is White Light? 84
How Do Light Bulbs Differ? 94
How Can Radio Waves Change? 100
How Does Your Reflection Wink? 116
How Can You Make an Image Appear on a Sheet of Paper? 121
How Do Colors Mix? 127
Can You See Everything With One Eye? 133
How Does a Pinhole Viewer Work? 137
Sharpen your Skills 29
Practice of specific science inquiry skillsObserving 29
Graphing 47
Designing Experiments 71
Observing 95
Classifying 118
Developing Hypotheses 129
TRY Tuis 31
Reinforcement of key concepts 31
Standing Waves 31
The Short Straw 52
Pipe Sounds 54
Plucking Rubber Bands 58
Listen to Sounds 67
How Do Light Beams Behave? 82
What Does a Bee See? 91
Produce Electromagnetic Interference 102
Disappearing Glass 122
True Colors 135
What a View! 138
Skills Lab 24
In-depth practice of inquiry skills 24
Wavy Motions 24
Making Waves 34
The Speed of Sound 49
Looking at Images 126
Real-World Lab 64
Everyday application of science concepts 64
Musical Notes 64
Comparing Light Bulbs 98
Build a Crystal Radio 108
Changing Colors 132
Interdisciplinary Activities 104
Science and History 104
Wireless Communication 104
Optical Instruments 142
Science and Society 69
Noise Pollution 69
Irradiated Food 93
Connection 26
Math Toolbox 26
Music 59
Social Studies 85
Visual Arts 130