A teacher, Reena, started off her lessons on matter - specifically liquid - to her class by conducting two trigger experiments.

In the first experiment, she placed an empty bowl on one side of the weighing balance and then another bowl filled with water on the other side of the balance. The experiment was to highlight the idea of the mass of liquid. Students proceeded to write their thoughts on the experiment on KF.

The second experiment Reena conducted was concerning the compressibility of liquids. She filled a syringe with water, then asked a few students to try to push in the plunger while she held her thumb against the mouth of the syringe. Students were again instructed to post their thoughts on KF.

Figures 1 and 2 below show examples of students' notes on KF regarding the first and second experiment, respectively.

Fig 1. Example of student's note on KF for first experiment teacher conducted.

Fig 2. Example of student's note on KF for second experiment teacher conducted.