Download Add to Favorites Add to Folder creative writing children's book activities classroom tools language arts and writing vocabulary Create new folderCREATE NEW FOLDER Share Explore an activity that is an experiential approach through which students examine the microbial world -- specifically soil microbiology. Grade: 9 | 10 | 11 | 12 Subjects: Science Earth Science Soil + show tags TYPE: Worksheets Activities Holidays: Earth Day