Provide your students with a hands-on look at the real world effectiveness of various antibacterial substances on bacteria. Students thoroughly investigate and compare several antiseptic and disinfectant products such as soap, alcohol and bleach. With the buzz in the media about bacterial resistance, you will definitely hold a captive audience while discussing this important topic! Student instructions, worksheets and Teacher Notes included. Complete for 30 students working in pairs. Bacillus megaterium, LM1002, is required for this activity and available separately.