Refraction Box, semi-circle

Standard 6" semi-circle clear plastic protractor.

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Use this DIY telescope kit to explore the science of some of the earliest telescopes! Build a single, simple refracting telescope & study the included detailed guide to learn different aspects of basic astronomical viewing.

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This clear glass rectangular block is useful for a variety of refraction and reflection studies. It is 115 mm long, 65 mm wide and 20 mm thick. None of the edges are frosted.

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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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