The five scientists-turned-prospectors continue their search for gold on New Zealand's South Island in the second part of the science challenge series. This week they construct a giant panning machine, manufacture their own cosmetics from sheep's wool, and find out how trees can hold clues to an area's seismological history.
Director Martin Belderson ; Series producer Steve Evanson 17 For a free Rough Science booklet call [number removed] or visit www.open2.net