About a dozen Cornell graduate students in food science entertained hundreds of children at the Ithaca Sciencenter on Feb. 19 by explaining the secrets of gummy worms (sodium alginate, the seaweed material that gums the candy), pickles (fermentation science), protein foams (whipping egg whites into meringue and making marshmallows), and showing why oil and vinegar don’t mix (emulsions).
But don’t tell the mesmerized kids – who clambered for hours to each table – that they were actually learning, as harried parents and grandparents sat back to let the graduate students deftly illuminate the spellbinding world of food science.