The cover credits Magdalena Wajrak and Tim Harrison as preparers and prints 2021. Edith Cowan University hosts the booklet; the two preparer credits apply to the whole booklet.
Cited passages: Chemical Demonstrations Booklet (2021), demonstration 16, printed p. 32, “Equipment”, “Preparation”, “Observations” and Figures 1–3; p. 33, Figure 4; Demonstration 16, printed pp. 32–33: zinc-sulfate comparison and zinc/copper-sulfate equation.