Tash, Zak, and their mysterious Uncle Hoole find themselves in a dangerous situation when they journey to Kiva, a planet on the galaxy's Outer Rim, to make sure the evil Borborygmus Gog's Project Starscream has really been destroyed.
Presents the life of the seventeenth-century scientist who made predictions about the comet which bears his name and discusses many other important scientific contributions he made.
Contains twenty articles that provide accounts of scientists and discoveries that changed the course of world history, from the invention of gunpowder in 1280, to the landing of the first men on the moon in 1969.
Biography of Benjamin Franklin focusing on his experiments and inventions involving electricity, and examining his improvements to the everyday objects of his time.