Choose a material by what the product needs
Reject unsuitable candidates before comparing cost or convenience.
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The Researcher · fictional example
The situation
The Researcher needs a fictional enclosure with density at most 3 g/cm3 and a stated temperature limit of at least 70 C. Candidate A is 1.2 g/cm3 and 55 C; B is 2.7 and 120 C; C is 7.8 and 200 C.
Before you continue
What would you predict? Say it aloud or write a line on paper. Then compare your reasoning with the example.
Starting knowledge: Compare values against a limit; multiply volume by density.
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