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Student learn basic concepts of chemistry & optics. Ideal for science fair model, science activity at home.It can teach children to explore knowledge, understanding Light concept, Science magic learning , practical guide, many more… Science model | physics Apparatus | lab kit | Tinkering Lab | School-College practical knowledge | Brain Experiments |Science practical class10 ray of light Reflection lightTrusted By Parents, Loved By Children SCIENCE LAST 12 YEAR. Non-Toxic & Safe. Exceeds safety standardsOne concave lens one convex lans one prism one half circle one slab one convex mirror one concave mirror