"Earth (Planet)" . . . . . . . . "Biography" . "Picture books" . . . "Come see the Earth turn : the story of Léon Foucault" . . "Picture books for children" . . "Explores the life and work of nineteenth-century French physicist Leon Foucault, who invented a pendulum that provided proof that the Earth rotated on its axis." . . . "Juvenile works" . . .