Student Research Reports

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Our school is surrounded by evergreen plant species and they do not change during the different seasons. The leaves are always green on the trees. That's why we decided to observe the changes in the fig and lime trees that grow in the immediate vicinity of our school, and their characteristics (leaves, shape of the crown and trunk, flowers and fruits) are very different. We observed how the color of their leaves changed and compared the rate of yellowing and leaf loss. We noticed that the leaves changed color earlier on the fig tree compared to the llime tree and that they fell off earlier, both on the observed branches and on the whole tree, as we assumed. Due to the loss of leaves, figs and lindens enter the resting phase, in which the process of photosynthesis stops. Trees must store carbon in their trunks and roots for the winter period. Through calculations, we came to the result and conclusion that the fig tree stored more carbon than the linden tree.