Pure metals are too soft for many Explain why an Extended writing: explain why class and voting for the uses and so are mixed with other of a metal is metallic substances conduct 'best'. metals to make alloys. harder than the electricity. Research some metal pure metal. The different sizes of atoms in an Discussion questions: alloys and present the alloy distort the crystal structure, Explain why information in a table Why are alloys harder than making alloys harder than pure metals have high suitable for a GCSE pure metals? melting and educational web page. Are alloys 'designer boiling points. Metals are good conductors of metals'? Research some uses of electricity because the Explain why metallic substances. Extended writing: describe delocalised electrons in the metals are good melting points and boiling Research and discuss: carry electrical charge through the conductors of points of metallic substances. Should silicon be a metal. electricity. Students write a script for a dinner table conversation Why is gold explaining why a metal fork relatively does not melt in the scalding unreactive? soup. Does gold form alloys? Extended writing: explain why the melting point and boiling Extension: make links point of metallic substances between the uses of are high. metal substances, their properties and structure. Extended writing: describe the structure of metal alloys. Students deduce chemical formula of WS 1.2
Pure metals are too soft for many uses and so are mixed with other metals to make alloys. The different sizes of atoms in an alloy distort the crystal structure, making alloys harder than pure Metals are good conductors of electricity because the delocalised electrons in the carry electrical charge through the metal. Explain why an of a metal is harder than the pure metal. Explain why metals have high melting and boiling points. Explain why metals are good conductors of electricity. Extended writing: explain why metallic substances conduct electricity. Discussion questions: Why are alloys harder than pure metals? Are alloys 'designer metals'? Extended writing: describe melting points and boiling points of metallic substances. Students write a script for a dinner table conversation explaining why a metal fork does not melt in the scalding soup. Extended writing: explain why the melting point and boiling point of metallic substances are high. Extended writing: describe the structure of metal alloys. WS 1.2 class and voting for the 'best'. Research some metal alloys and present the information in a table suitable for a GCSE educational web page. Research some uses of metallic substances. Research and discuss: Should silicon be a Why is gold relatively unreactive? Does gold form alloys? Extension: make links between the uses of metal substances, their properties and structure. Students deduce chemical formula of
AQA-8465-SOW-ISLD.DOCX