Science Book Videos
Mandatory investigations and experiments
Separate mixtures using a variety of techniques: filtration, evaporation, distillation and paper chromatography.
Grow crystals using alum or copper sulfate.
Investigate the pH of a variety of materials using the pH scale.
Show that approximately one fifth of the air is oxygen; show that there is CO2 and water vapour in air.
Prepare a sample of oxygen by decomposing H2O2 using MnO2 as a catalyst.
Prepare carbon dioxide and show that it does not support combustion.
Conduct a qualitative experiment to detect the presence of dissolved solids in water samples, and test water for hardness (soap test).
Titrate HCl against NaOH, and prepare a sample of NaCl.
Carry out an experiment to demonstrate that oxygen and water are necessary for rusting.
Investigate the reaction between zinc and HCl, and test for hydrogen.