BMW Posted January 3, 2012 Share Posted January 3, 2012 We are doing an in-home science experiment that is a chemical reaction. It is easy to do and inexpensive, but I am lacking knowledge as to WHY this happens... and WHAT it has to offer us (educational value? fun? pique ones interest in chemistry?) or the world (any higher purpose?). Help would be very appreciated!!!! Here is the website for it: http://www.sciencebob.com/experiments/iodine_clock_reaction.php To quote the page: ..."basically it is a battle of chemistry between the starch which is trying to turn the iodine blue, and the Vitamin C which is keeping it from turning blue. Eventually the Vitamin C loses and, bam! - you get instant blueness. " Our question: why is the starch trying to turn the iodine blue?? Why does the vitamin c keep it from turning, at least initially? We're using this for a science fair.... just thought some of you might have insight or know how to explain it... And, it's fun if you want something "sciencey" to do! Quote Link to comment Share on other sites More sharing options...
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