2

Hot and Dry! Desert

4

Eire of the Desert

4

Eire of the Desert

4

Desert

4

Maddy's Washington Diary

4

Patsy and Paul at Uluru in Australia

4

Chip's Tips on Botswana

4

Hoover Dam

4

Chip's Tips on Ghana

4

Sossusvlei Dunes, Namibia

4

Chip's Tips on Mexico

4

Chip's Tips on China

4

Ecosystems Level 4

3

Marco Polo

4

Maddy's California Diary

3

The Winklers' Holiday on Zoo Lovers Day

4

Maddy's Oregon Diary

4

Okavango Delta, Botswana

3

Coastal Plains of the World

4

Sphinx, Egypt

4

Maddy's Arizona Diary

4

Timbuktu, Mali

4

Maddy's Nevada Diary

3

Continents of the World

4

Chip's Tips on Chile

4

Chip's Tips on South Africa

2

Ecosystems

4

Chip's Tips on India

4

Chip's Tips on Egypt

4

Chip's Tips on Yemen