Physics Balls Set-Drilled Balls 25mm with 3mm Center Hole and a Plastic Storage Container.

GSC International #42003-12 Physics Balls Set Complete Set: Includes 12 drilled balls (25mm diameter) with 3mm center holes, featuring two each of aluminum, brass, copper, steel, zinc, and wood, providing a variety of material types for diverse experiments. Durable Storage: Comes with a convenient storage container, making it easy to keep the balls organized and accessible for classroom use. Versatile Applications: Ideal for pendulum and projectile demonstrations, helping students explore key mechanics concepts such as gravity, momentum, and energy transfer. Density and Buoyancy Experiments: Allows students to compare mass and density by using identical-sized balls made from different materials, reinforcing concepts like density and buoyancy. Classroom-Friendly Design: The drilled balls can be used in various setups and experiments, offering a practical and engaging way to teach fundamental physical science concepts. PRODUCT WARNINGS WARNING: This product can expose you to chemicals i