4

Windsor Castle, England

4

Hadrian's Wall, England

4

Stonehenge, England

4

Canterbury Cathedral, Canterbury, England

3

Harbors of the World

3

Malala Yousafzai

4

Maddy's New York Diary

3

The Old Lady and Her Pig

3

Isaac Newton

3

Inertia

3

Motion

4

Maddy's Maine Diary

3

Work

4

From the American Revolution to the Civil War

4

Maddy's Massachusetts Diary

3

Christopher Columbus

3

Daniel Boone

4

Buckingham Palace, London

3

Pressure

3

The Old Lady and Her Pig

3

May Day

3

Rivers of the World

3

Stealing Sally

3

Gravity

3

Force

3

Rabindranath Tagore

4

Maddy's Vermont Diary

3

Stealing Sally

4

Maddy's Rhode Island Diary

3

St. Patrick's Day