such as conductor, insulator, density, convection, etc., as appropriate. Lesson 8Kc: Controlling transfers Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Starter: Water as an insulator n/a Resources Choosing Demonstrate Recall ways of reducing energy Ask students what they think will from 8Kc and using a what happens transfer by conduction, convection and happen when you heat a Exploring suitable level when you heat evaporation. borosilicate glass boiling tube of Science. of accuracy a Apply the idea of different colours water with an ice cube held at its for borosilicate being good or poor emitters or base with a piece of gauze. boiling tube of absorbers. Demonstrate the practical and ask water with an Explain why particular materials are students to explain why the ice does ice cube held at used for given purposes. not melt. its base with a Securing piece of gauze. Evaluate ways of increasing or Exploring: Investigating insulation decreasing energy transfer by Students plan and carry out an Students plan conduction, convection, radiation and investigation of the factors that affect and carry out evaporation. insulation, such as thickness of an investigation Compare the effects of different rates material, type of material, shiny/dull of the factors of conduction in different materials. material, no air, etc. that affect Exceeding insulation, such Apply the idea of thermal mass to Explaining: Air as an insulator as thickness of homes. Demonstrate that most effective material, type Working Scientifically insulators consist mainly of air, by of material, State the meaning of: accuracy. asking students to examine a piece of shiny/dull State the meaning of: precision. foam rubber or expanded polystyrene material, etc. Use information about resolution to using a hand lens, or use a vacuum choose measuring instruments. pump to evacuate the air from a Demonstrate Explain how to avoid systematic and piece of duvet filling. that most random errors. effective Plenary: Thinking about controlling insulators energy transfer consist mainly Odd One Out: glass, feathers, bubble of air. wrap. (Possible answers: glass does not contain pockets of air; feathers
such as conductor, insulator, density, convection, etc., as appropriate. Lesson 8Kc: Controlling transfers Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Recall ways of reducing energy transfer by conduction, convection and evaporation. Apply the idea of different colours being good or poor emitters or absorbers. Explain why particular materials are used for given purposes. Securing Evaluate ways of increasing or decreasing energy transfer by conduction, convection, radiation and evaporation. Compare the effects of different rates of conduction in different materials. Exceeding Apply the idea of thermal mass to homes. Working Scientifically State the meaning of: accuracy. State the meaning of: precision. Use information about resolution to choose measuring instruments. Explain how to avoid systematic and random errors. Starter: Water as an insulator Ask students what they think will happen when you heat a borosilicate glass boiling tube of water with an ice cube held at its base with a piece of gauze. Demonstrate the practical and ask students to explain why the ice does not melt. Exploring: Investigating insulation Students plan and carry out an investigation of the factors that affect insulation, such as thickness of material, type of material, shiny/dull material, no air, etc. Explaining: Air as an insulator Demonstrate that most effective insulators consist mainly of air, by asking students to examine a piece of foam rubber or expanded polystyrene using a hand lens, or use a vacuum pump to evacuate the air from a piece of duvet filling. Plenary: Thinking about controlling energy transfer Odd One Out: glass, feathers, bubble wrap. (Possible answers: glass does not contain pockets of air; feathers n/a Resources from 8Kc Exploring Science. Choosing and using a suitable level of accuracy for Demonstrate what happens when you heat a borosilicate boiling tube of water with an ice cube held at its base with a piece of gauze. Students plan and carry out an investigation of the factors that affect insulation, such as thickness of material, type of material, shiny/dull material, etc. Demonstrate that most effective insulators consist mainly of air.
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