CH58: Describe what a covalent bond is

CH59: Describe what a molecule is

CH60: Identify the size of a molecule

CH61: Draw dot and cross diagrams for covalent substances

CH62: Explain why simple covalent substances have low melting points

CH63: Explain why simple covalent substances do not conduct electricity

CH64: Describe what a giant covalent substance is

CH65: Describe the structure of diamond and graphite

CH66: Explain the uses of diamond and graphite

CH67: Describe the properties of graphene, fullerenes and nanotubes

CH72: Explain what a polymer is