Screaming jelly babies
"Screaming jelly babies" (en-UK), also known as "Growling gummy bears" (en-US/en-CA), is a classroom chemistry demonstration, variants of which are practised in schools around the world. It is often used at open evenings to demonstrate the more light-hearted side of secondary school science. The experiment shows the amount of energy there is in a piece of confectionery; jelly babies or gummy bears are often used for theatrics. Potassium chlorate, a strong oxidising agent, rapidly oxidises the sugar in the candy, causing it to burst into flames, producing a "screaming" sound as rapidly expanding gases are emitted from the test tube. The aroma of candy floss (cotton candy) is also given off.
- "YouTube videos to ignite science". BBC news. 1 December 2008. Retrieved 14 May 2013.
- "Screaming Jelly Baby Experiment - Student Science". University Radio Nottingham. 2012-01-16. Retrieved May 13, 2013.
- "Growling Gummy Bear" (PDF). CHEMISTRY 11 DEMONSTRATIONS. British Columbia Science Teachers' Association. Retrieved 22 March 2014.
- "Growling Gummy Bears". BYU Lecture Prep. Brigham Young University. Retrieved 22 March 2014.
- Lubbock Christian University: Can a Gummy Bear Scream?
- "5.5 Oxidation of Sugar or Gummi Bear with Potassium Chlorate". Chemical Reactions II: Oxidation/Reduction. University of Massachusetts Lecture Demonstrations. Retrieved 22 March 2014.
- Isherwood, Richard Myers & Bob (2006). World changing ideas. New York, NY: Saatchi & Saatchi. p. 128. ISBN 9780955304606.
- Martin, Jade (November 2, 2011). "Teachers sweeten up chemistry". The Daily Advertiser. Retrieved May 13, 2013.
- Maxwell, George (2008). Chemistry Demonstrations For High-School Teachers. Lulu.com. pp. 19–20. ISBN 9780955684302.
- The howling/screaming jelly baby (PDF) (Report). CLEAPSS. Supplementary Risk Assessment 01. Retrieved May 14, 2013.