J248 一年级自然实验盒  J248 Experimental Natural science Box ( lst. Year)
一年级自然实验盒供小学一年级学生进行识颜色和形状，做泥玩具，物体的分解与组合，观察对称与沉浮，饲养蜗牛和小金鱼等小实验。
For the first year students of primary school : to distinguish one co lour from the others and one shape from the other shapes; to made clay toys; to assemble and dismantle an object; to observed symmetrical object; to observe the sinking and floating of an object ; to feed snails and small animals.
J249 二年级自然实验盒  J249 Experimental Natural Science Box (2nd Year)
二年级自然实验盒能完成水轮机的组装，制作简单的杠杆枰，饲养蚂蚁和蟋蟀等小实验。
For 2nd year pupils of primary school to assemble hydraulic turbine machine and make simple steelyard and keep ants and crickets.