For further information about topics covered in 'Curly-Wurly stretching' click on the following links:
Have a look at the Exploratorium pages for the science of sugar:
http://www.exploratorium.edu/cooking/candy/sugar.html
You can follow links from there to the science of caramelisation and the Maillard reaction - making toffee with milk.
http://www.exploratorium.edu/cooking/candy/caramels-story.html
Where does sugar come from? What varieties are available? Have a look at the British Sugar website:
http://www.britishsugar.co.uk/RVEe6623e41376a4bb7b83a
57016c68b707,,.aspx
For a more in-depth look at caramelisation and what the products are, have a look at this website:
Source: NESTA
Date: 02 December 2007
Subject: Chemistry Engineering Miscellaneous
Suitability: Adults/Parents Anyone Over 11s Over 14s Over 16s Over 7s Professionals Teachers