Provides information about the life of Harriet Tubman, and discusses her role in American history as an escaped slave who risked her freedom to lead other slaves to safety along the Underground Railroad.
Provides photographs and information about rhesus monkeys, discussing their variety, physical characteristics and abilities, where and how they live, what they eat, how their babies are born, and if they are endangered.
Provides photographs and information about tamarins, discussing their variety, physical characteristics and abilities, where and how they live, what they eat, how their babies are born, and why they are endangered.
Offers a brief introduction to the career of actor Jaden Smith, discussing his first roles, the part that made him a star, his hobbies, and his family life.
An exploration of wheels and axles that defines what they are; discusses their parts, how they work, their history, and how they are used; and includes a related experiment.
An exploration of screws that defines what they are; discusses their parts, how they work, their history, and how they are used; and includes a related experiment.