Mass and Density

Brass slotted masses hold their calibration well over years of use, while cast alloy and steel sets offer a more affordable option for general classroom demonstrations.

Slotted mass sets are sold with a matching hanger, but confirm the slot size and hook style if buying additional mass pieces separately, so they fit your existing hanger.

Density cubes suit direct comparison of regular shapes, while a displacement vessel is needed for irregular objects where volume can't be calculated from dimensions alone.

A single demonstration set suits teacher-led lessons, but hands-on mass and density practicals need enough mass pieces, hangers and density apparatus for every group to run the experiment themselves.

A mass hanger is the hook that attaches to a spring, string or apparatus, while mass pieces are the individual slotted weights added onto the hanger to build up a specific total mass.

A typical slotted mass set includes a hanger plus a series of individual mass pieces, commonly in 10g, 20g or 50g increments, that slot onto the hanger to reach a required total mass.

Submerge the object fully in the filled displacement vessel and collect the displaced water in a measuring cylinder. That volume, divided into the object's measured mass, gives its density.

Each cube is made from a different material with a different density. Since all cubes share the same volume, the difference in mass directly demonstrates the difference in density between materials.

Yes. We regularly supply schools with class sets of slotted masses, hangers and density apparatus. Contact us for a quote on bulk quantities for a full classroom or department.