3

David Livingstone

4

Washington Monument

4

Famous Americans: George Washington

4

Stonehenge, England

3

Clayton Does The Unthinkable

3

Clayton Does The Unthinkable

4

Maddy's Washington Diary

3

Isaac Newton

4

Maddy's Washington, D.C. Diary

4

Jewels, Gemstones, and Birthstones

4

Yellowstone National Park

3

Caves of the World

4

The American Revolution

4

How they work? Motor Vehicles

3

Isthmuses of the World

3

Islands of the World

2

Miss Squiggly Squirm

4

Chip's Tips on New Zealand

2

The Wonders of the Human Body

2

Mr. Clip Clop

4

Polar

3

The Muscular System

4

Maddy's Minnesota Diary

1

Things That Are White

4

Maddy's Florida Diary

3

States of Matter

4

Jordan & Justine's Weekend Adventures

4

Chip's Tips on United States

4

Chip's Tips on Russia

4

Chip's Tips on Papua New Guinea