3

Rocks and Minerals

4

How they work? Rockets

4

The Dome of Rock, Jerusalem

3

Friction

2

An Author's Haunted Story

4

Maddy's Nevada Diary

1

Sports

4

Tundra

4

Maddy's Illinois Diary

4

Table Mountain, South Africa

3

Meteorites, Meteoroids, and Meteors

4

Maddy's Massachusetts Diary

4

Maddy's Texas Diary

4

Maddy's Washington, D.C. Diary

4

Chip's Tips on Australia

4

Edinburgh Castle, Edinburgh, Scotland

4

Patsy and Paul at Uluru in Australia

4

Chip's Tips on Chile

4

Petra, Jordan

4

Maddy's Oklahoma Diary

3

Individual Sports

3

Canyons of the World

3

St. Patrick's Day

4

Chip's Tips on South Africa

3

Zuri's Launch

2

Jack's Sack

4

Maddy's Montana Diary

4

Maddy's Alabama Diary

3

Astronauts

3

Isthmuses of the World