Protractor, 6" semi-circle

Clear semi-circular polystyrene container that can be filled with water for refraction studies.

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This 1" diameter semi-permeable dialysis tubing is ideal for osmosis or diffusion experiments.

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This piece of dialysis tubing can be opened up to form a sheet of semi-permeable membrane that is 3-1/2" wide by 12" long.

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Use this 6" x 6" stainless steel laboratory scissor jack to elevate laboratory equipment and glassware, such as beakers, test tubes, and more! Weight capacity is 20 lbs (9Kg).

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Heavy-duty Rayovac 6-volt battery. This screw-style battery has two screw terminals for easy connection.

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