Just got our October issue of Highlights, with my candy experiments article inside. My daughter was especially impressed to see the "Candy Secrets" teaser on the cover. "They must have really liked it!" she exclaimed.
To find out more about why acid reacts with baking soda, why candy contains oil, and why chromatography separates colors, check out pages 22-23 on the October issue of Highlights. They also have their own version of the Candy Sparks experiment online.