Science Year by Year Philosophy and sound-symbol association

and sound-symbol association

or traveling the ancient Silk Road on a mule cart

A seek-and-find activity on the take-along storage case helps kid explore the detailed scene

players look to create the most magnificent of machines

and review pages

Science Year by Year Philosophy and sound-symbol associationA visual encyclopedia for children that traces the key steps in the history of science and technology, from the wheel to the World Wide Web. Created in association with the Smithsonian Institution. Packed with fascinating discoveries and facts, Science Year by Year takes kids on a fantastic visual journey through time, from stone tools and simple machines to rockets and robots. Easy to follow illustrated timelines of pivotal scientific developments