4

Chip's Tips on Madagascar

4

Amphibians

3

Saturn

4

Hoover Dam

4

Chip's Tips on Ghana

4

Gorillas and Other Primates

3

Galaxies

3

Mythical Creatures

4

Sources of Energy

3

Jupiter

4

Chip's Tips on Chile

2

The Wonderful World of Water

3

Islands of the World

4

A Valentine for Cupid

4

Maddy's Alaska Diary

4

Maddy's Oklahoma Diary

3

Gravity

1

In the Kitchen

4

Chip's Tips on Canada

3

Asteroids

3

Stars

2

Dinosaurs

3

Comets

4

Chip's Tips on Qatar

4

Dr. Why-Human Body

3

Coastal Plains of the World

4

Maddy's Wyoming Diary

4

Maddy's Pennsylvania Diary

3

Team Sports

3

Energy