At the end of this unit
in terms of scientific enquiry
most pupils will: select information about elements and their properties from a range of secondary sources; describe how to deal with hazards when preparing oxides; identify an approach to finding out whether a material is an element or not and explain how their results provide appropriate evidence
some pupils will not have made so much progress and will: find information from selected secondary sources about elements and their properties; describe some hazards in preparing oxides and describe the results of their investigations
some pupils will have progressed further and will: select secondary sources to provide the information needed about elements and their properties; identify limitations of evidence obtained about whether a substance is an element or not, where appropriate, suggesting alternative explanations
in terms of materials and their properties
most pupils will: recognise that there is a small number of elements and name some of these; explain that compounds are made when atoms of different elements join together; begin to use symbols for elements and to represent reactions in word equations
some pupils will not have made so much progress and will: name some elements and represent these by symbols; distinguish between symbols for elements and formulae for compounds; name a wide variety of materials
some pupils will have progressed further and will: identify elements whose properties do not fit the general pattern of metals and non-metals; begin to represent compounds by formulae
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