3
Famous Explorers
3
David Livingstone
3
Daniel Boone
4
Maddy's Maryland Diary
4
Maddy's Iowa Diary
3
Magnetism
3
John Smith
3
Christopher Columbus
3
Francis Drake
3
Amerigo Vespucci
3
Vasco da Gama
3
Marco Polo
3
Zheng He
3
Samuel de Champlain
3
Ferdinand Magellan
3
Jacques Cousteau
3
Ibn Battuta
3
Jacques Cartier
3
Roald Amundsen
3
Sacagawea
3
James Cook
3
Leif Erikson
3
Astronauts
3
John Cabot
3
Juan Ponce de León
3
Neil Armstrong
3
Edmund Hillary
3
Isthmuses of the World