3

The Earth

3

Amazing Earth - Part 1

4

Extreme Earth

3

Amazing Earth - Part 2

4

Earthquakes

4

Polar

3

Drainage Basins of the World

3

Pollution

4

Hurricanes

4

Mount Fuji, Japan

3

Garbage Travels

3

Caves of the World

2

Hot and Dry! Desert

3

Solar Eclipse

4

Extreme Weather

3

Stars

3

Canyons of the World

2

Water Everywhere! Aquatic

2

Snow and Ice! Polar

2

Natural Disasters

3

The Universe

2

Treeless Plains! Steppe

1

Animals and their homes

3

Mountains of the World

3

Zuri's Launch

3

Lunar Eclipse

3

Astronauts

3

Space Exploration

2

Solar System

4

Savanna