Ball & Ring Gravesande's - Chain Type Crepe & Tissue Sheet Size: 2

Sheet Size: 2

Durable and aesthetically pleasing

Children will delight in using them for circle dances

while the adjustable backrest provides safe

introduces height progression to build mobility and flexibility

Ball & Ring Gravesande's - Chain Type Crepe & Tissue Sheet Size: 2The Ball and Ring Gravesande's Apparatus (Chain Type) is a classic physics demonstration tool designed to show the expansion and contraction of metals with heat. At room temperature, the brass ball easily passes through the metal ring. Once the ball is heated, it expands and can no longer pass through the ring, visually demonstrating the principle of thermal expansion. This apparatus includes a brass ball and ring, both mounted on sturdy steel rods