Introduce students to the Gram staining technique, a differential staining method that categorizes all bacteria as either Gram-positive or Gram-negative based on differences in the cell walls. -- Includes: crystal violet, Gram’s iodine, safranin, 95% isopropanol, Bacillus cereus, Escherichia coli, Staphylococcus epidermidis, Spirillum serpens, tryptic soy agar, swabs, slides, 30 student worksheets and teacher’s guide with culture growth and maintenance information. |