A biography of the nineteenth-century French artist who discovered the process for destroying harmful bacteria with heat and opened the door to the new science of microbiology
Explains how all matter is composed of atoms, which join together to form molecules, and how scientists have learned to release energy by splitting the atom
A biography of the nineteenth-century French artist who discovered the process for destroying harmful bacteria with heat and opened the door to the new science of microbiology
Explains the importance of the contribution made by the Italian sailor and navigator Christopher Columbus, whose discovery of America in 1492 changed the geography of the known world
Briefly traces the history of the pilgrims, a group of Puritans who fled England to escape religious persecution, sailed to Massachusetts on the Mayflower, and celebrated their first harvest there in 1621 with a great feast