Screaming jelly babies
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Jelly babies are made with sugar, glucose syrup, gelatin, citric acid, colours and flavourings.
"Screaming jelly babies" is a chemistry demonstration which is practised in schools in the United Kingdom and Australia, and other countries where the sweets are commonly available. It is often used at open evenings to demonstrate the more light-hearted side of secondary school science. [1] The experiment shows the amount of energy there is in a "jelly baby". Potassium chlorate is a very strong oxidizing agent that oxidizes the sugar in the jelly baby almost instantaneously.[2]
When the experiment is performed, the jelly baby bursts into giant flames and a screaming sound can be heard as rapidly expanding gases are emitted from the test tube in which the experiment is performed. The aroma of candy floss (cotton candy) is also given off.
References
- ↑ "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.
Further reading
- 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 (Report). CLEAPSS. Supplementary Risk Assessment 01. http://www.rsc.org/learn-chemistry/content/filerepository/CMP/00/000/828/cfns%20experiment%2069%20-%20the%20howling-screaming%20jelly%20baby.pdf?v=1368575712210. Retrieved May 14, 2013.
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