paddle steamer [science experiment]](明轮船【科学小实验】) roller coaster [science experiment]](过山车【科学小实验】) warrior car [science experiment]](回力小车【科学小实验】) balloon backflush car [scientific experiment]](气球反冲车【科学小实验】) periscope advanced edition [science experiment]](潜望镜高级版【科学小实验】) periscope simple version [science experiment]](潜望镜简易版【科学小实验】) tower [science experiment]](塔台【科学小实验】) sundial [science experiment]](日晷【科学小实验】) mitsubishi mirror [science experiment]](三菱镜【科学小实验】) children's science experiment 7-color pigment [scientific experiment]](儿童科学实验7色色素【科学小实验】) flashlight and compass [science experiment]](手电筒加指南针【科学小实验】) microscope [small scientific experiment]](显微镜【科学小实验】) rock [science experiment]](岩石【科学小实验】) magnetic suspension magnet suit [scientific experiment]](磁悬浮磁铁套装【科学小实验】) two-way circuit science [small scientific experiment]](双路电路学【科学小实验】) magnifying glass [science experiment]](放大镜【科学小实验】) rotating eight planets learning instrument [scientific small experiment]](旋转八大行星学习仪【科学小实验】) single helix glider [small scientific experiment]](单螺旋滑翔机【科学小实验】) double helix taxiing aircraft [scientific experiment]](双螺旋滑行飞机【科学小实验】) phantom chariot [science experiment]](幻影战车【科学小实验】)

primary school science textbook display(小学科学教材展示)