scattering在句中充当什么成分

I collected all the books, newspapers and other things scattering in the rooms and put them in place. 句中scattering是other things的后置定语吗？为何不需要scattered

scattering 为错误。改为scattered。目前分词表示正在发生的动作，过去分词表示动作结束后的状况。