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.
Diameter: 4-3/4" (120mm), Depth: 1-3/16" (30mm), Thickness: 1/16" (1.5mm)
Build your own 10 inch kaleidoscope with this great kit!
This simple but amusing magnetic toy will keep you busy for hours!
This beautiful candle holder is carved out of natural amethyst!
See the solar system in action!
Dig deeper, and discover the fascinating crystal structures of minerals and rocks with this great kit!
This mirascope creates a 3D hologram image!