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CREST Awards
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Gold award: design the ultimate toothbrush
In this project, students design a series of tests to find the best toothbrush and obtain quantitative data. Some examples of the properties ytheymay wish to test include:
• The shape of the toothbrush head and the area and density of bristles on the head
• Flexibility of the handle – measure how easily and how much they bend before they break.
• Strength and wear resistance of the bristles
• Their ‘reach’ – in other words, do some toothbrushes reach areas that others don’t?
• How well they clean
• How abrasive they are - could they damage teeth and gums?
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Design the ultimate toothbrush 435.12 KB
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Design the ultimate toothbrush 435.12 KB
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