J248 一年级自然实验盒 J248 Experimental Natural science Box ( lst. Year)
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)
For 2nd year pupils of primary school to assemble hydraulic turbine machine and make simple steelyard and keep ants and crickets.