Cato and Exxon Mobil presented Worcester Preparatory School sixth grade science teacher Lindsey MacWha with a $500 grant. Among the tools purchased with the funds were a mechanical smoke machine, which demonstrates what happens to lungs exposed to smoke inhalation, and a chemical kit filled with various narcotics to be used for experiments with fruit flies. MacWha is pictured with rising seventh grader Delaney Abercrombie and Kathleen Abercrombie, who presented the grant.