
United Scientific® Archimedes' Principle Apparatus, Large by United Scientific is an oversized buoyancy demonstration model with a 100 mL displacement capacity for higher accuracy and easier operation. Its white nylon cylinder and cup both carry marked divisions, so students can repeat the experiment at different volumes. An activity guide is included, and the setup requires a 200 g spring scale, an overflow can, and a beaker. It suits physics classes running quantitative buoyancy labs.