Science Tells How and Why .........7

Animal Who's Who .......................8

Animal Homes .............................10

Feeding Time ...............................12

Resting Time ................................14

When Winter Comes ...................15

Animal Babies..............................16

Plants That Make Seeds ..............18

Trees Through the Year ...............20

Plants Without Seeds ...................24

Flowers .........................................26

How Seeds Travel ........................28

Why the Wind Blows ...................30

What Makes It Rain?....................34

Snow and Ice ...............................36

Rainbow Colors ...........................38

Light and S h a d o w ...................40

The Big Round World .................42

Day and Night .............................44

How Rocks Were Made .............46

What Is Inside the Earth?............48

Pebbles .......................................50

Sand and Soil ..............................52

Land and Sea .............................54

Rivers ........................................56

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