A Standard V student of a government school, S. Devayani, explains the causes of climatic changes with ease, underscoring the individual’s responsibility to protect the environment. T. Dhileepan, a Standard VI student of a private school, demonstrates how solar energy could be used to produce signals in non-motorised vehicles, while R. Geethanjali’s model illustrates how bed dams could help in combating climate change.

These students, along with many others in government and private schools here, have come together with numerous exhibits on ‘Science, Technology and Society,’ with sub-themes including climate change and green energy for the three-day Regional Level Science Exhibition conducted by the Directorate of School Education from Wednesday.

In all, 97 government schools and 71 private schools from urban and rural areas of Puducherry have put up a total of 305 exhibits. The exhibition will go on till Friday at Government Higher Secondary School, Indira Nagar.

Devayani and her team member, Kavithan of Standard III of Government Middle School, Mudaliarpet, have come up with a model demonstrating the harmful effects of chlorofluorocarbons emitted by air conditioners and refrigerators, methane from burning of plastic and industrial gases. The project on solar signalled non-motorised vehicle was one of the interesting exhibits on display. As Dhileepan of St. Patrick Matric Higher Secondary School explained its working on a cycle, “Using the rays of the sun on a solar panel attached to the vehicle and storing it in a battery, we can have a headlight, horn, radio and brake horn in non-motorised vehicles such as cycles, bullock carts, horse carts, tricycles and rickshaws to prevent accidents.”

How hydro electricity could be used to provide lights in rural areas in pollution-free and cheap means comprises the works of J. Janaki and P. Vidhyalakshmi of Subramania Bharathi Government Girls Higher Secondary School.

By constructing beds dams, river water could be used for agricultural purposes and to create new water bodies. This will go a long way in combating climate changes,” said Geethanjali of St. Joseph of Cluny Girls Higher Secondary School on her bed dam model.

S. Samyuktha and E. Infanta of the school highlighted eco-friendly electricity generation. “There are different forms of generating electricity from natural resources without polluting the environment and meeting people’s demands such as wind energy, hydro electric energy and solar energy. This could prevent global warming,” they said.

Using aluminium foils around cell towers could help in reducing the effects of electromagnetic radiation on human beings, birds and animals, according to J. Nagaraj and Rahul Gandhi of Bharathi Government HSS, Bahour.

More In: Science | Sci-Tech