Changes of State - Results Tables

Exploring the fascinating changes of state in substances, several experiments are designed to capture the transformation processes in an educational setting. One such experiment investigates how the temperature fluctuates during the ice cream making process. A results table is set up to record the temperature in degrees Celsius at one-minute intervals, alongside observations to note whether the milk mixture remains liquid or has solidified. This provides a clear visual representation of the freezing process over a span of five minutes.

Another experiment focuses on the evaporation rates of different liquids. After a week, the remaining volume of each liquid is measured in millilitres, and a rank is assigned to indicate the rate of evaporation. This experiment includes a variety of liquids such as water, methylated spirits (alcohol), shampoo, and vegetable oil, each with its unique evaporation characteristic. Additionally, an exploration into the diffusion rates of essential oils, such as sandalwood, cedar, pine, and orange, is conducted. The time taken in seconds for each oil to diffuse is meticulously recorded, shedding light on which essential oil disperses most rapidly through the air.