Amazon.comIf chemistry were as fun and easy as it sounds on the Twin Sisters' Chemistry, we'd all be throwing over our day jobs for the white coats and test tubes. Of course, the goal with this album is to get kids to think about how the world we live in is really one big (organic) chemical factory. Through a dozen sing-alongs, grownups and kids explore what a chemist does, what chemistry is all about, and how experiments work. Specific tunes ask "Is It Sugar, or Is It Salt?" and "What Is the Smallest Part?" (a smart crash course on atoms) and songs talk about the magical ways of water and the building blocks of life. Chemistry comes critiqued and approved by an expert, in this case, a real chemist. Moms and dads, start your Bunsen burners. --Martin Keller