Squishing, stretching, turning, and twisting. Author Peter Riley makes learning about physical science concepts fun. After core principals of force are explained through easy-to-understand scenarios, such as when a child pulls on their socks, the concepts of gravity, friction, and magnetic fields are explored. Readers will learn how to use magnets through entertaining experiments. Answers to activities are provided at the back of the book, each activity being easily accomplished through the use of household items.