5 Cleaning the grater 0 Keywords: acidsproperties Students explain why the metal where some lemon juice had been spilt appears shiny. Preview
5 The meaning of pH 3 Keywords: acidsalkalisbasespH scaleproperties Students answer two multiple-choice questions on pH. Preview
5 Acidic, basic, or neutral 5 Keywords: acidsalkalisbasespH scaleproperties Task: Using the given pH, classify 10 common substances as acidic, basic, or neutral. Assessment focus: knowledge of the pH scale Preview
5 A home-made smell remover 2 Keywords: acid-base reactionschangeschemical propertiesneutralisationpropertiessmellsociety Students consider the potential for chemical change when a range of everyday substances are mixed. They use logical reasoning to work out the consequences of four pairs of reactions. Preview