Montessori Science & Culture System Teaching Aids: Montessori nature science cultural specimens, preschool earth science enlightenment curriculum. Systematic covering fossil, mineral and rock categories, help children intuitively understand geological changes, earth evolution and ancient biological knowledge, build professional natural science cognitive system 3 independent specimen boxes: Fossil Specimens, Mineral Specimens, Rock Specimens. All raw materials are natural genuine fossil, ore and rock, clear classification & serial number marking, restore real geological characteristics, meet professional kindergarten science popularization observation teaching needs Safe Transparent Embedded Resin Protection Craft: Adopt high-purity transparent epoxy resin sealed embedded packaging, fully wrap and fix natural specimens. Smooth rounded edge resin shell, wear-resistant, fall-proof and dust-proof, specimens will not loose, damage or fade. Non-toxic harmless environmental protection resin, no sharp corners, fully comply with children toy safety standards High-definition Transparent Visual Observation Design: Ultra-high transparent resin shell, 360° clear view of specimen internal structure, texture and detail features. Fixed arrangement with serial number marks, convenient for children to classify, compare, record and learn geological knowledge, greatly reduce boring textbook memory Multi-scene Natural Science Enlightenment Application: Ideal teaching aids for Montessori science culture area, kindergarten geological science courses, primary school geography popular science. Perfect parent-child earth science exploration game, cultivate children's observation ability, logical thinking and natural exploration curiosity