Lesson 8Gd: Metal and acids Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Starter: Water and other solutions Exploring: Resources n/a Show the Describe the reactions of acids with Show the students magnesium Investigating from 8Gd students metals. reacting with water. Then add metals and acids Exploring magnesium Recall which salts are produced by which magnesium ribbon to dilute acid The investigation Science. reacting acids. and ask students what the can also be used with water. Recall some reactions that happen slowly difference is and to suggest to consider the and some that happen quickly. reasons for this difference. quality of Students Relate the uses of different elements to evidence out an their chemical properties. Exploring: Investigating metals obtained. investigation to Securing and acids find the order of Model simple reactions of metals and Students out an investigation reactivity of the acids using word equations. to find the order of reactivity of the metals calcium, Use information on the reactions of metals calcium, magnesium and magnesium and metals with to place them in order of zinc with hydrochloric acid, by zinc with reactivity. measuring the volumes of gas hydrochloric Model simple reactions using symbol produced over a set time interval. acid, by equations. measuring the Exceeding Explaining: volumes of gas Write and derive the formulae for Demonstrate how salts can produced over a common acids and simple salts, given the be obtained by the reaction of set time ratios of atoms or the formulae of metals and acids. Use magnesium interval. reactants. and hydrochloric acid. Model simple reactions using balanced Demonstrate symbol equations. Plenary: Thinking about metals how salts can Working Scientifically and acids be obtained by Identify the of readings in an Odd One Out: magnesium, the reaction of experiment. calcium, copper. (Possible metals and Identify repeated measurements. answers: magnesium is the only acids. Use Identify data that is repeatable, not metal that reacts with dilute acids magnesium and repeatable, reproducible, not but doesn’t react with cold water; hydrochloric reproducible, reliable and not reliable. calcium is the only metal that acid. Explain why repeatable, reproducible, reacts quickly with cold water; reliable data is better quality. copper is the only metal that
Lesson 8Gd: Metal and acids Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Describe the reactions of acids with metals. Recall which salts are produced by which acids. Recall some reactions that happen slowly and some that happen quickly. Relate the uses of different elements to their chemical properties. Securing Model simple reactions of metals and acids using word equations. Use information on the reactions of metals with to place them in order of reactivity. Model simple reactions using symbol equations. Exceeding Write and derive the formulae for common acids and simple salts, given the ratios of atoms or the formulae of reactants. Model simple reactions using balanced symbol equations. Working Scientifically Identify the of readings in an experiment. Identify repeated measurements. Identify data that is repeatable, not repeatable, reproducible, not reproducible, reliable and not reliable. Explain why repeatable, reproducible, reliable data is better quality. Starter: Water and other solutions Show the students magnesium reacting with water. Then add magnesium ribbon to dilute acid and ask students what the difference is and to suggest reasons for this difference. Exploring: Investigating metals and acids Students out an investigation to find the order of reactivity of the metals calcium, magnesium and zinc with hydrochloric acid, by measuring the volumes of gas produced over a set time interval. Explaining: Demonstrate how salts can be obtained by the reaction of metals and acids. Use magnesium and hydrochloric acid. Plenary: Thinking about metals and acids Odd One Out: magnesium, calcium, copper. (Possible answers: magnesium is the only metal that reacts with dilute acids but doesn’t react with cold water; calcium is the only metal that reacts quickly with cold water; copper is the only metal that Exploring: Investigating metals and acids The investigation can also be used to consider the quality of evidence obtained. Resources from 8Gd Exploring Science. n/a Show the students magnesium reacting with water. Students out an investigation to find the order of reactivity of the metals calcium, magnesium and zinc with hydrochloric acid, by measuring the volumes of gas produced over a set time interval. Demonstrate how salts can be obtained by the reaction of metals and acids. Use magnesium and hydrochloric acid.