"PARKWAY PLASTICS, INC."

Ungraduated Gilson separatory funnels with ground cones, plastic stoppers, and glass key stopcocks, made of borosilicate 3.3 glass.

Mounted on molded plastic base, the unit consists of a base into the top of which may be screwed one of a set of four vases of differing shapes. An aperture in the bottom has a thin rubber diaphragm across it, bearing upon the short arm of the lever pointer. A moveable index on the vertical rod enables the height of water in vases to be set at same level. The apparatus is mounted on moulded plastic base that measures 25 x 17.5cm. The experiment is performed by screwing in each vase, in turn, and filling with water to the same level. It will be seen that the given height of water will result in the same deflection of pointer whatever shape of the vase.

This set will meet the needs of any high school dissection lab.

Dry up to 50 tubes at once.

Westcott drafting and drawing tools are some of the finest products of their kind for students and professionals.

All-in-one support design.

Compare Skull Structure of Avians with different Diets.

Strong polycarbonate boxes for storage of cryogenic vials.

Cups

Hard plastic rods for paper versions to clip onto the top and bottom of your chart.

Explore shapes, patterns, area, and more.

This pair of North-South Bar Magnets is affordable and colorful.

Provides a secure hold.

Plastic, tubular Newton spring balances. Dual scale labeled, perfect for classroom or laboratory use, physics experiments and demonstrations.

Comprised of a thick plastic base with four rubber feet, along with with an 18cm diameter aluminium plate with an insulating handle.