| Experiment 6.1 Observing Brownian motion under a microscope |  | | |
| Experiment 6.2 Can you smell the perfume contained in a balloon? | | | |
| Experiment 6.3 Does the total volume change when water and alcohol are mixed? | | | |
| Experiment 6.4 Comparing the properties of matter in different states | | | |
 Experiment 6.5 Observing the dissolving of potassium permanganate in water | | | |
| Experiment 6.6 Do volume and mass change when sugar dissolves in water? | | | |
| Experiment 6.7 Observing the thermal expansion and contraction of a solid, a liquid and a gas | | | |
| Experiment 6.8 How does the volume of a gas affect the gas pressure? | | | |
| Experiment 6.9 Studying the effect of atmospheric pressure | | | |
| Experiment 6.10 What would happen to our bodies if there was no atmospheric pressure? | | | |
| Experiment 6.11 Do different substances of the same volume have the same mass? | | | |
| Experiment 6.12 Finding the densities of different substances | | | |
| Experiment 6.13 Finding the densities of objects with irregular shape | | | |
| Experiment 6.14 Making a density column | | | |
| Experiment 6.15 How can we make plasticine float? | | | |
| Experiment 6.16 Comparing the densities of hot water and cold water | | | |
| Experiment 6.17 How does a hot air balloon work? | | | |