What can you do with paper clips and other tiny items that fall under your bed or get lost in a drawer? Send them flying with your own miniature launcher! With step-by-step instructions to create a tabletop version of this medieval machine using simple materials found around the house, this book introduces basic engineering and physics concepts to readers.
Machines at Work (Set) (Machines at Work)
Inventions That Could Have Changed the World...But Didn't!
by Joe Rhatigan and Anthony Owsley
Outlines the process of making and patenting inventions and presents innovations in such fields as transportation, appliances, child and pet care, and amusement that did not work, were too early or too late, or failed for other reasons.
Featuring an exciting countdown from 10th place to the number-one spot and ranked by an Extreme Score, this engaging series offers young readers fun, detailed facts about some of the craziest, most dangerous, innovative and interesting things that have ever existed. Each miscellany features large, detailed illustrations and color photographs, and a list of runners-up who did not quite make the cut is also included. Entertaining and informative the books in this series additionally feature statis...
Military Machines in the War on Terrorism (Military Machines in the War on Terrorism)
by Craig Boutland
Levers (Simple Machines) (Science Matters: Simple Machines)
by Jennifer Howse
Cars, Trains and Trucks Coloring Book 3 (Cars and Other Vehicles Coloring Book for Kids, #3)
by Tanya Turner
Levers (Simple Machines (Creative Library)) (Simple Machines (Creative Paperback))
by Valerie Bodden
"A foundational look at levers, explaining how these simple machines work and describing some common examples, such as crowbars, that have been used throughout history"--Provided by publisher.