Ages 9 to 12 years. Taking young readers on a trek through the cultural history of time, this activity book teaches a co... MoreTimekeeping: Explore the History and Science of Telling Time with 15 Projects
Once, robots were only found in science fiction books and movies. Today, robots are everywhere! They assemble massive c... MoreRobotics: DISCOVER THE SCIENCE AND TECHNOLOGY OF THE FUTURE with 20 PROJECTS
Slavery or freedom? The question of whether to make the United States a slave country or to make all people free was the... MoreThe Civil War: The Struggle that Divided America
Show More Books
