| Experiment 2.1 Measuring temperatures as ice changes to steam |  | | |
| Experiment 2.2 Simulating the formation of rain | | | |
| Experiment 2.3 Investigating the factors affecting the rate of evaporation | | | |
| Experiment 2.4 Classifying substances as soluble or insoluble | | | |
 Experiment 2.5 Investigating the factors affecting the rate of dissolving | | | |
| Experiment 2.6 Investigating the effect of temperature on solubility | | | |
| Experiment 2.7 Observing natural water through a microscope | | | |
| Experiment 2.8 Using sedimentation to purify water | | | |
| Experiment 2.9 Purifying water by using a filter column | | | |
| Experiment 2.10 Purifying water by using filter paper | | | |
| Experiment 2.11 Examining the filtered pond water | | | |
| Experiment 2.12 Purifying sea water by distillation | | | |
| Experiment 2.13 Effect of chlorine on microorganisms in water | | | |