4

Stonehenge, England

4

Hadrian's Wall, England

4

Canterbury Cathedral, Canterbury, England

4

Windsor Castle, England

3

Harbors of the World

3

St. Patrick's Day

3

Motion

4

Maddy's Massachusetts Diary

4

Maddy's Rhode Island Diary

3

Florence Nightingale

3

Christopher Columbus

3

Work

4

Chip's Tips on Jamaica

3

William Shakespeare

3

Pressure

4

Maddy's Maine Diary

4

Early North American Settlers

3

May Day

4

Maddy's Vermont Diary

3

Momentum

3

Lazy Jack

4

Buckingham Palace, London

4

Maddy's New York Diary

3

Lazy Jack

3

Mahatma Gandhi

3

Chinese New Year

3

Malala Yousafzai

3

Inertia

3

Straits of the World

3

The Old Lady and Her Pig