Keeping the sound contained

The management team want to offer free ear defenders for children coming to the festival. Can you test out a range of materials that combine comfort and style with soundproofing?

Science Objectives
i) Compare and group together everyday materials on the basis of their properties, including their hardness, transparency, and conductivity (electrical and thermal).

ii) Give reasons, based on evidence from comparative and fair tests, for the particular uses of everyday materials, including metals, wood and plastic.

Working Scientifically

1. Plan different types of scientific enquiries to answer questions, including recognising and controlling variables where necessary.
2. Take measurements, using a range of scientific equipment, with increasing accuracy and precision, taking repeat readings when appropriate.
3. Record data and results of increasing complexity using scientific diagrams and labels, classification keys, tables, scatter graphs, bar and line graphs.
4. Report and present findings from enquiries, including conclusions, causal relationships and explanations of and degree of trust in results, in oral and written forms such as displays and other presentations.

Other Curriculum Areas
Design and Technology

• Use research and develop design criteria to inform the design of functional products that are fit for purpose, aimed at particular individuals or groups.
• Select from and use a wider range of materials and components, according to their functional properties and aesthetic qualities.

Extended Writing Opportunities
Non-chronological writing: Create and write a report that identifies the best materials for ear defenders, based on your data and understanding of materials.