3

Amazing Earth - Part 2

4

Earthquakes

3

The Earth

4

Extreme Earth

3

Amazing Earth - Part 1

3

Solar System

3

Lakes of the World

4

Volcanoes

3

Astronauts

3

Amerigo Vespucci

3

Jupiter

3

Solar Eclipse

2

How Seasons Occur

3

Garbage Travels

3

Valleys of the World

3

The Universe

3

Rivers of the World

4

The Golden Gate Bridge

3

Capes and Peninsulas of the World

3

Fjords of the World

3

Space Exploration

3

Saturn

3

Mars

4

Tornadoes

4

Belém Tower, Portugal

3

Oceans and Seas of the World

3

Wetlands of the World

3

Bays of the World

3

Lunar Eclipse

3

Senses