English National Curriculum Science

9. Explore insulating material - required practical

Mission Objectives

Identify independent, dependent and control variables in an investigation

Describe the method used to investigate thermal insulation properties of a material

Plot a graph to analyse the data collected in the investigation

Evaluate potential sources of error in the investigation and suggest improvements

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KS4-18-10 Lesson Slides KS4-18-09 Mission Assignment KS4-18-09-Teacher Answers KS4-18-09 PDF Handout KS4-18-09 Handout

Keywords

Words and meanings to learn

beaker

a glass with a wide mouth and usually a lip for pouring that is used especially in science laboratories for holding and measuring liquids

insulator

a material that is used to stop the passage of electricity, heat, or sound from one conductor to another

imperative

of vital importance; crucial

uncertainty

the interval within which the true value is expected to lie

effective

successfully achieving the most accurate result

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Required Resources

Resources: A beaker (eg 250 ml and 100 ml), a thermometer, a kettle to heat water, a piece of cardboard, scissors, a stopwatch and insulating material (e.g newspaper, corrugated cardboard, bubble wrap or rubber bands).

Handout: Plan the practical to investigate how changing the insulation material affects the cooling rate of a beaker. Write the method for the investigation and record the variables. Record the results and plot a graph to show the cooling curves. Analyse results and discuss errors.

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