US$ 155.73
300mm Focal Length
Dial-selectable multi-tap battery eliminator delivering 1
Soda glass pneumatic trough with concave base measures 12 inches diameter by 6 inches tall for gas collection over water
625 inches in diameter
Illustrates liquid-density changes with temperature using a weighted 75mm hollow copper sphere that floats in 15°C water and sinks as the water warms to 30°C
Heat Transfer Demonstration Kit with Ice Melting Plates Graduations_Blue 300mm Focal LengthPaired as one aluminum plate and one foam plate at identical starting temperatures, this kit makes thermal conductivity differences visible through side by side ice melting.