At the end of this unit
in terms of scientific enquiry
most pupils will: obtain and present qualitative results in a way which helps to show patterns; describe how to deal with hazards relating to acids and alkalis; suggest how to investigate a question about antacids, planning and making a fair comparison
some pupils will not have made so much progress and will: obtain and present qualitative results; describe some hazards of acids and alkalis; explain how they made a fair comparison in their investigation into antacids
some pupils will have progressed further and will: explain how their conclusions match the evidence obtained and suggest ways in which the data collected could be improved
in terms of materials and their properties
most pupils will: name some common acids and alkalis and classify solutions as acidic, alkaline or neutral, using indicators and pH values; describe what happens to the pH of a solution when it is neutralised; describe some everyday uses of acids, alkalis and neutralisation
some pupils will not have made so much progress and will: name some common acids and alkalis; state some everyday uses of acids and alkalis and classify solutions using indicators
some pupils will have progressed further and will: explain how a neutral solution can be obtained and relate the pH value of an acid or alkali to its hazards and corrosiveness
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