Density Cubes

Why does wood float and iron sink? The answer has to do with density, an often difficult concept for youngsters to comprehend. Density cubes clarify the topic by providing a tangible, hands-on way of learning about mass, volume, specific gravity, buoyancy, and flotation. The set contains 10 one-inch cubes, each made of a different metal, wood, or type of plastic. Each cube has a unique density and weight. When the cubes are used in classroom activities, students can actually see, feel, and touch the concept. Includes instructions for use in the classroom.