Du er ikke logget ind
Beskrivelse
If you want to understand the fundamentals of the forces of magnetism and electricity, experimentation--safe and guided--is key. The many exciting experiments in this inspiring volume teach young scientists about attraction, magnetic poles, batteries, conductors and insulators, and even how to make a simple electric motor. Each investigation is clearly explained through step-by-step instructions and concludes by telling readers what should have happened and why. Sidebars, fact boxes, and illustrations add to the fun experiences that are sure to aid readers in understanding essential concepts in the elementary science classroom.