If you missed our coverage of the 2009 Intel Science Talent Search finalists and winners earlier this week—or even if you didn't—below you'll find a package of whiz kid profiles. Spending time with them is enough to turn a hardened cynic into an optimist who believes that the next generation has a chance of solving many of the world's problems. Christie Nicholson, who produced the videos, and Laura Vanderkam, who did the interviews, will agree.

There's Aditya Rajagopalan, who figured out how to improve the way we make cellulosic ethanol (and had a few words for the President). There's Chelsea Jurman, who took fifth place out of 40 finalists and suggests that parents don't say too much about their own drinking to their kids. There's Philip Streich, who took third place in the competition, for his project on carbon nanotubes.

You'll find their profiles and five others in the player below.