4

Lightning

4

Famous Americans: Benjamin Franklin

3

Momentum

4

Geometric Shapes

3

Conquer the World

4

Chip's Tips on Malta

4

Sources of Energy

4

Maddy's New York Diary

3

Neptune

4

Sharks and Other Sea Life

4

The Pygmy People

3

Life Cycle of a Chicken

4

Things to See in New York City

3

The Universe

3

Thurgood Marshall

4

Chip's Tips on Mexico

3

Team Sports

3

Body Systems

4

Daniel's Day at the Thanksgiving Parade

3

Astronauts

3

Galaxies

3

Marie Curie

4

How they Work? Trains

2

Building Bridges

2

Handling Food

2

Flint Goes to the Doctor's Office

4

Maddy's South Carolina Diary

4

Maddy's Pennsylvania Diary

4

Maddy's Iowa Diary

4

Chip's Tips on Rwanda