American Educational Ball and Ring Demonstrating Thermal Expansion - La Contesa Toilet Length 28 1/8 in

Toilet Length 28 1/8 in

Set includes 3 versatile brushes Perfect for proper cleaning of glassware

Prime-Line Products FM 1820 Spiral Non-Tilt Balance

Length: 48 in

extra weight backpack

American Educational Ball and Ring Demonstrating Thermal Expansion - La Contesa Toilet Length 28 1/8 inAmerican Educational Ball and Ring Demonstrating Thermal Expansion Brand: American Educational The unit demonstrates the expansion of metal when heated and its contraction when cooled When either the ball or ring is heated, the ball will not pass through the ring When cooled, however, the ball will pass through the ring freely The ball and ring are mounted on insulated wooden handles to protect hands from the heat