Packed with fascinating discoveries and facts, this visual reference takes kids on a fantastic journey through time, from stone tools and simple machines to space travel and robots.
Packed with fascinating discoveries and facts, this visual reference takes kids on a fantastic journey through time, from stone tools and simple machines to space travel and robots.
General Note
Includes index.
Content Note
3 MYA-800 CE: Before science began -- 800-545: New ideas -- 1545-1790: The age of discovery -- 1790-1895: Revolutions -- 1895-1945: the atomic age -- 1945-present day: Modern science.