Sciencent Set of 3 Equilateral Acrylic Prisms 1" 2" 4"

Teacher Created Materials - Science Readers: Content and Literacy: Light Makes a Rainbow - Grade 1 - Guided Reading Level H

6pc Optical Lens Set, 2" - 200mm, 300mm, 500mm Focal Lengths - 3 Double Convex & 3 Double Concave, 2" (50mm) Diameter Lenses - Optically True Glass - Ground, Beveled Edges - Eisco Labs

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Eisco Labs Equilateral Acrylic Prisms With 1 inch Sides, Set of 3 Prisms - 1 Inch, 2 Inch, and 4 Inch Lengths

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