Text and over sixteen thousand illustrations offer information on sixteen topics in earth, life, and physical science--such as birds, space exploration, evolution and genetics, and weather and climate--for students in grades five through eight. Includes glossaries.
"100 discoveries that changed history, who did what when"--cover.
#1 NEW YORK TIMES BESTSELLER A landmark volume in science writing by one of the great minds of our time, Stephen Hawking’s book explores such profound questions as: How did the universe begin—and what made its start possible? Does time always flow forward? Is the universe unending—or are there boundaries? Are there other dimensions in space? What will happen when it all ends? Told in lang…