Hands-On Science: Exploring DNA and Photosynthesis

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Our students have recently been busy understanding two fascinating areas of biology: inheritance and photosynthesis.

As part of their work on Inherited Characteristics, students explored the role of DNA by creating their own 3D models of the DNA double helix structure. Using straws, paper, air-drying clay, and glue guns, they worked creatively to bring the building blocks of life to life in the classroom. The results were fantastic, and the colourful models now make a wonderful display in our science room.

In another lesson, students turned their attention to Photosynthesis. To investigate the role of chlorophyll, they carried out a practical experiment that involved extracting the pigment from green leaves. They carefully boiled the leaf, transferred it to ethanol, and observed the boiling point of ethanol at 78°C. After rinsing and drying the leaf on a white tile, drops of iodine were added. Students were excited to see that if starch was present, the leaf would turn a blue-black colour, helping them link their visual observations to the process of photosynthesis.

The students thoroughly enjoyed these hands-on experiences, which not only reinforced key scientific concepts but also encouraged curiosity, teamwork, and practical scientific skills.

Be Kind Be Curious Be You