Nature of Liquid & Gas

Osmosis and Diffusion Kit – Lab-Aids® No. 22

This kit allows students to observe diffusion through a membrane in two directions at the same time. In addition, they can observe the selective permeability of a membrane – some substances can pass through a membrane and others cannot. Complete f... More.

Gas Law Apparatus with Temperature Gauge

Use this apparatus to experiment with the elastic properties of a measured quantity of gas. This unit makes the understanding of Boyle’s Gas Law easy and helps to show the relationship between the pressure, temperature, and volume of a gas that is... More.

Harbottle

Help students understand the meaning of fluid pressure and pressure reduction. A Harbottle is a round glass container with a balloon inside and stretched over its opening. A hole in the flattened base is fitted with a rubber stopper. Students are amazed... More.

Surface Tension of Bubbles

Easily study soap films and bubbles on metal frames and notice that soap film always adopts the configuration with the lease surface area. You can also measure the surface tension of the water. Includes 6-1/2" (16.5 cm) diameter trough for soap ... More.

Dialysis Membrane Tubing – Flat Width 1", 50 ft. Long

Made of seamless, regenerated cellulose. An excellent membrane designed for laboratory dialysis and routine osmosis/diffusion experiments. Pore size MD-44-14. More.

Dialysis Membrane Tubing – Flat Width 1", 100 ft. Long

Made of seamless, regenerated cellulose. An excellent membrane designed for laboratory dialysis and routine osmosis/diffusion experiments. Pore size MD-44-14. More.

Dialysis Membrane Tubing – Flat Width 1-3/4", 50 ft. Long

Made of seamless, regenerated cellulose. An excellent membrane designed for laboratory dialysis and routine osmosis/diffusion experiments. Pore size MD-25-14. More.

Dialysis Membrane Tubing – Flat Width 1-3/4", 100 ft. Long

Made of seamless, regenerated cellulose. An excellent membrane designed for laboratory dialysis and routine osmosis/diffusion experiments. Pore size MD-25-14. More.

Boyle’s Law and Absolute Zero

An excellent way to visualize the basic relationship between pressure, volume, and temperature of gases. To display Boyle’s Law, connect the calibrated syringe to the pressure gauge and watch the corresponding pressure change as the volume of gas ... More.

Equilibrium Tubes with Stand

This apparatus demonstrates that liquids will stand at the same level regardless of shapes of the tubes. Unit consists of four glass tubes of different shapes, mounted on sturdy base. A comprehensive teacher’s guide is provided. More.