as an engagement activity for our student, we asked them to predict, observe and explain the following activities based on buoyant forced. The set-up has a water-containing beaker on top of an electric balance. the three panels shown in figure I illustrate what they hed to deal with:(I)A represents the tube with some liquid and B is for an empty tube floating in water;(II)A1 repesents the liquid-containing tube being pushed into the water while B remains floating;(III)B1 represents the empty tube pushed to the same depth sa A1