30-D1.2s

Performing and Recording:     conduct investigations into relationships among observable variables and use a broad range of tools and techniques to gather and record data and information • perform an experiment to test, qualitatively, predictions of equilibrium shifts; e.g., colour change, temperature change, precipitation and gas production (PR–NS3, PR–NS4, PR–NS5) • prepare a buffer and investigate its relative abilities, with a control (i.e., water), to resist a pH change when a small amount of strong acid or strong base is added (AI–NS6).