More Discrepant Events have been added to each chapter of the first two editions. Like the first and second editions, emphasis have been placed in the use of simple and readily available materials such as jars, adhesive tape, straws, candles, paper clips, rubber bands, pins, needles, balls, marbles, eggs, clothespins and magnets. Each of the activities is a Discrepant Event, which arouses the students' curiosity and confronts them with a happening that is unexpected and unusual. It can be easily followed, especially with the accompanying clear sketches, and the explanation is designed for persons with minimal science background. The step-wise procedure on what to do plus the cleas sketches show you exactly how to set up the demanstration or activity.
Every demonstration is carried out with the simplest of materials, and with the minimum amount.