1967 · 35 min · Documentary
A BAFTA special award winning documentary that pays a visit to a first-year chemistry class in a London secondary school (Wandsworth Comprehensive), where three pupils' theories as to why copper turns black when heated in air are tested. Intended for science teachers to show how a child's natural curiosity can be encouraged. Includes a sequence on the work of Mrs. C. Hutt in experimental psychology.
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