Machines at Work (Science Discovery S.)

by Alan Ward (Author)

• Used

  Hardcover
  1994

  $119.54

  This book is part of a series which includes at least 20 amusing activities for children to do, to help them think about important science facts and ideas. Each double page includes an introduction to the basic science concerned, an imaginative range of activities to try, with explanations of what happens and some extra Did You Know information. In this book, a wide range of activities will give the reader an uncomplicated, hands-on understanding of levers, pulleys, ramps, screws, cranks, mills, transmitting forces and combating friction.