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41 Our Teeth
40 Beautiful Winter Scenery
39 Ouch! Prickly Plants
38 Incredible Eggs
37 Human Hair
36 Wintertime for Plants
35 Polar Animals
34 Digging up the Past
33 Snowflakes
32 Sleeping Animals
31 Spectacular Eruptions
30 Bird Migration
29 Exploring Matter
28 Our Planet
27 Cool Colors of Night Sky
26 Carving Pumpkins
25 The Small Collectors
24 Fall Beauty
23 Fruits and Vegetables in the Fall
22 Fall Is Coming!
21 Green Jumpers
20 Living Together
19 Flying High
18 Stargazing
17 Save the Earth!
16 Floating Along
15 Colorful Flyers
14 Beautiful Flowers With a Snack
13 The Helpful Creepy Worm
12 About the Air