Understanding the basics of density and how that affects flotation and buoyancy comes to life in a step-by-step guide that presents simple but effective experiments that include creating a hydrometer and a jet boat
An examination of things that alter their color, shape, size, and structure features easy-to-understand, full-color experiments designed to help youngsters discover basic scientific principles.
Explains the scientific principles of everyday objects--both natural and man-made--by examining their basic properties, their strength, and their durability.