"Tubes"

The Student Coin and Feather Tube shows the two items in a vacuum, falling at the same rate.

The movement of liquid currents due to differences in temperature is demonstrated by introducing dye into the water in the tube. One corner of the tube is heated and the movement of the dye clearly establishes the currents. The rectangular shaped tube measures 15×21 cm and has an opening at the top.

This apparatus is used to Verifying the Boyle’s law when air is decompressed and compressed. A horizontally mounted acrylic tube having a graduated scale (0- 300cm3) along one side. A gas tap closes the tube. Pressure gauge is present next to gas tap. By changing the position of rubber stopper, the effective length of the tube can be selected. The scale measures volume and pressure by means of pressure gauze. Boyle’s law is investigated by changing position of the stopper.

Achieve an airtight seal with any bell jar using our economy vacuum plate. The plate measures 24×24 cm, is constructed of polyeythlene and has a rubber pad. The hose connector accommodates 6.4 mm (¼") standard tubing.

Effective Method of Showing Normally Invisible Currents

The liquid convection apparatus is designed to show the convection of heat in a liquid.

This is a classic example of thermodynamics in action.

Ideal for demonstrating that vapor pressure increases when temperature increases.

Employs Guericke’s Method for Demonstrating the Force of Atmospheric Pressure.

This nickel coated plate uses a rubber pad to achieve air tight contact with a bell jar. It features a stopcock and center hole with safety screw plug and a rubber gasket.