ITEM NAME:Optical physical experiment homemade periscope DIY material light principle toMO Feature: 1.100% New and High Quality. 2.Happy and easy to learn. 3.Exercise your children practical ability. 4.Train your children observation capability,thinking and analytical skills. Learning Points: Reflection principle of light Rectilinear propagation of light Package list: 1pc homemade periscope.Reflection principle of light. Happy and easy to learn. Exercise your children practical ability.
