Children learn kownledge by watching a scientfic experiment eqiment during an science popularization activity in Fuzhou, southeast China's Fujian Province, Sept. 20, 2008, the National Science Popularization Day of China. [Xinhua]
![Children learn kownledge by watching a scientfic experiment eqiment during an science popularization activity in Fuzhou, southeast China's Fujian Province, Sept. 20, 2008, the National Science Popularization Day of China. [Xinhua]](http://images.china.cn/attachement/jpg/site1007/20080922/001109b42f980a41752101.jpg "Children learn kownledge by watching a scientfic experiment eqiment during an science popularization activity in Fuzhou, southeast China's Fujian Province, Sept. 20, 2008, the National Science Popularization Day of China. [Xinhua]")