Hollow Acrylic Semi-Circle for Refraction Index Study, 3 x 1.5 x 1.75" Subject_Anatomy packaged in a hard plastic

packaged in a hard plastic case with standard-size pieces

sized to fit standard calorimeters for uniform liquid mixing during thermal experiments

and gas control on natural gas for high-temperature chemistry heating applications

Pea seed germination model traces cotyledon splitting

Pairs 75 by 50mm with 18mm thickness on an acrylic rectangular refraction block

Hollow Acrylic Semi-Circle for Refraction Index Study, 3 x 1.5 x 1.75" Subject_Anatomy packaged in a hard plasticAcrylic semi circular block measuring 3 x 1. 5 x 1. 75 inches with a center indicator line, used to study Snell's law, total internal reflection, and critical angle behavior.