2026-03-03 (Tuesday)
Category : School activities
On 3rd March, 2026, Secondary 5 Biology students embarked on a full-day field study at the Ho Koon Nature Education cum Astronomical Centre. In the morning, students waded into a freshwater stream to observe and collect various aquatic organisms. The students successfully identified several species, including bee shrimps, mayflies and dragonfly nymphs, mosquitofish, and notably, Hong Kong Newts. By examining these creatures, students gained valuable insights into the adaptive features that allow these species to survive in a dynamic river environment. In the afternoon, the focus shifted to analytical laboratory work. Utilising microscopes and specialised scientific equipment, students examined river water samples to determine the ecosystem\'s biomass. They also conducted tests to measure abiotic factors, such as dissolved oxygen levels and pH, in order to assess the water quality of the river. This field experience allowed students to gain a deeper understanding of the ecological roles of various organisms and the importance of river habitats, thereby fostering a greater respect for the rich biodiversity on Earth.