Disinfectant Concentration and Effectiveness

Produced by Nelson Thornes, this resource helps students look at aspects of how science works. In this activity students are given the results of an experiment to investigate the effectiveness of different concentrations of disinfectant and their effectiveness at killing bacteria.

Students are asked to suggest a prediction, draw a table to display the results, draw a line graph and answer some other questions regarding the data.

HEALTH and SAFETY
Any use of a resource that includes a practical activity must include a risk assessment. Please note that collections may contain ARCHIVE resources, which were developed at a much earlier date. Since that time there have been significant changes in the rules and guidance affecting laboratory practical work. Further information is provided in our Health and Safety guidance.

• URL: http://stem.org.uk/rx6oa