Vice President Cheney speaks at the 60th Intel Science Talent Search .
Scientists warn of future climate change.
Well, actually it's pretty close to the truth. Christina Crabtree, a high school senior from Pennsylvania, conducted a science experiment extracting pheromones from the sweat of heterosexual and homosexual females to see which scent appealed to heterosexuals. She found that people prefer the sweat of their own sexuality. Christina's findings could prove change the field of behavioral science, and it was just one of the 40 student science projects at this year's Intel Science Fair. The 40 projects were selected from more than 300 submitted by high school students across the country.