An educational package based on the Messolongi wetland area and designed to develop environmental awareness amongst Greek secondary students is described. The package includes a book and a pedagogical guide for the teacher, as well as a hypermedia application/CD-ROM and worksheets for the student. The entire educational package combines recent…

In this paper we present a simple set-up that illustrates the mechanism of sap ascent in plants and demonstrates that it can easily draw water up to heights of a few meters. The set-up consists of a tube with the lower end submerged in water and the upper one connected to a filter supported by a standard filter-holder. The evaporation of water…