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Centre for Industry Education Collaboration (CIEC)
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Let Sleeping Bags Lie
From The Centre for Industry Education Collaboration (CIEC), this series of activities investigates heat transfer and the thermal insulation properties of sleeping bags. In the investigation, students: * Consider the requirements for different categories of sleeping bags. * Measure the volume of air trapped in a number of materials used for sleeping bag fillings. * Test the 'breathability' of cover fabrics. * Test the thermal insulation properties of fillings. * Test the effect of washing on the properties of the materials. * Test the elasticity of the materials used. * Investigate the factors affecting the stable temperature inside a sleeping bag in use. Detailed teacher guidance and student activity sheets are provided in the materials.
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Let sleeping bags lie 5.6 MB
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Let sleeping bags lie 5.6 MB
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