This is a superb lesson that is formatted and organized in a way that would make students feel like they are in a real laboratory setting, doing very important and impactful scientific research. The lesson is very comprehensive and follows proper lab protocol, paying careful attention to detail to achieve accurate data and results. The instructions and accompanying visuals are detailed and concise, even covering and acknowledging points of confusion. Several support documents are also provided and need to be printed. There are certain materials that the lesson calls for testing, but similar household materials may be used instead. The information and steps given in this resource would be most successful if presented to students after careful preparation by the instructor. There are additional activities, lessons, and evaluations to take the experiment further and extend the knowledge already achieved.