Refraction Cup with Measurements
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Same great features of our regular clear refraction cups but with easy to read measuring rule printed on the base of the cup for easy refraction measurements. These semicircular plastic cells are perfect for observing the refractive properties of different liquids such as water, oil, alcohol, or other transparent liquids. The refraction cups are made of a clear, durable plastic. Dimensions: Diameter: 4-3/4" (120mm), Depth: 1-3/16" (30mm), Thickness: 1/16" (1.5mm)
NOW WITH TEACHER'S GUIDE!