Animal Records 6
Reading Objectives 6
Amazing Animals 7
Largest 8
Tallest 10
Longest Wingspan 12
Fastest 14
Slowest 16
Strongest 18
Lighter on the MoonReading Objectives 20
To the Moon 21
What Is Gravity 24
Feeling Gravity 27
Moon Math 28
Numbers and You 32
Reading Objectives 32
206 Bones 34
32 Teeth 38
660 Muscles 40
100,000 Hairs 42
1,800 Breaths 44
100,800 Heartbeats 46
1,500 Blinks 48
Measuring Up 50
The Golden Gate BridgeReading Objectives 54
A Spectacular Bridge 55
Who Planned the Golden Gate Bridge? 58
Working Together 60
Why Build a Suspension Bridge? 62
Building the Golden Gate Bridge 65
The Bridge:Past and Present 70
Review ActivitiesThink and Discuss 73
Multiple-Choice Test 75
Index 80