3

The Earth

3

Amazing Earth - Part 1

4

Earthquakes

4

Extreme Earth

3

Amazing Earth - Part 2

2

Solar System

3

Gulfs of the World

3

Asteroids

2

Hilarious Times with Nursery Rhymes

3

Isthmuses of the World

3

Oceans and Seas of the World

4

Tornadoes

3

Zuri's Launch

2

Hilarious Times with Nursery Rhymes

3

Amerigo Vespucci

3

Wetlands of the World

4

Taiga

3

Houses from around the World

2

Snow and Ice! Polar

3

Neptune

3

Venus

3

Sinkholes of the World

4

Maddy's West Virginia Diary

2

The Three Little Pigs and the Power of Bricks

4

Extreme Weather

4

Maddy's Ohio Diary

3

Pollution

4

Belém Tower, Portugal

3

Senses

3

Uranus