Table of Contents
Introduction for Parents and Caregivers 1
Tips for Success 2
What You Will Need 2
Section 1 Weather 5
How Do Clouds Form? 6
How is Frost Made? 9
Why is the Sky Blue? 13
How Do Tornadoes Work? 16
Why Does Rain Fall? 20
What is the Greenhouse Effect? 24
Section 2 Chemical Reactions 29
How Do Polymer Chains Work? 30
What is an Endothermic Reaction? 34
Will Oil and Water Mix? 42
How is Butter Made? 45
Can We See Carbon Dioxide? 48
What is an Exothermic Reaction? 51
Section 3 Plants and Biomes 55
What is Capillary Action? 56
What Are Biomes? 60
How Do Seeds Sprout? 64
How Do Trees Breathe? 68
How do Plants Drink? 71
Why Do Rocks Have Layers? 74
Section 4 Light, Sound, and Matter 79
How Does Sound Work? 80
How Do We See? 84
What is Density? 88
Why Don't All Objects Sink? 91
What is Pitch? 94
What is Surface Tension? 96
Section 5 Earth and Space Science 101
How Big is the Solar System? 102
How do Orbits Work? 106
How Are Crystals Formed? 109
What Makes Rocks Glow in the Dark? 112
What is a Nebula? 115
What Are Constellations? 117
Supplements 120
STEM extension worksheet 121
Science experiment worksheet 122
Index 123