This CPDU has been produced by Marjorie Smith from ‘Science and Plants for Schools’ (SAPS). The CPDU is based on a project called ‘Let’s Talk’ which has been supported by the Wellcome Trust’s ‘Engaging Science’ grants scheme. 'Let's Talk' is a series of activities designed to encourage young people to: Evaluate environmental and scientific issues. Make informed choices and decisions. Learn independently and as part of a group. Work in partnership and in teams.