This title contains 40 tried and tested experiments, some classic with up-to-the-minute variations, and some entirely new. Scientific principles are shown in action as well as in photographs of their everyday applications. The experiments are all safe to do, use household materials, are manageable but absorbing, and offer rewarding results. Readers are told how long each experiment lasts, what materials are needed, and what the results mean. Eye-catching illustrations and engaging text make this a perfect book for the budding scientist