How do I get water for my crops? How can we keep an asteroid from hitting Earth? Learn the basic science principles behind many inventions, and help solve these and other problems while learning the history of human inventions.
Describes the basic science principles and the history behind many inventions including the trebuchet, the parachute, spectacles or eyeglasses, the water closet or toilet, the printing press, the cannon, the watch, a microscope, the thermometer, and the battery. Includes hands-on problem solving and make-and-do projects.

Book details

• Format Hardcover
• Pages48 pages
• LanguageEnglish
• ISBN101404810374
• ISBN139781404810372