To grasp the scattering of light through a colloidal solution (fine particles dispersed in a medium) vis-à-vis a true solution (a clear mixture), Class 9 students of Isha Vidhya Nagercoil directed a powerful beam of light at each solution. They were amazed to see the stark path of light passing through the colloidal solution and enjoyed learning about the Tyndall Effect.

Class 5 students of Isha Vidhya Salem mixed a variety of liquids, such as coconut oil, castor oil, groundnut oil, lemon juice, and kerosene, to understand which liquids mix well and which do not. Many were surprised to see some liquids remain unmixed and form layers, and they enjoyed guessing and learning from the activity.

To understand how heat transfers through conduction and convection, Class 6 students of Isha Vidhya Cuddalore observed an air-filled balloon held over a lit candle. The balloon burst quickly as the rubber heated up through conduction. They then noted how a water-filled balloon did not burst, as the water absorbed the heat and distributed it through convection.

In the physics lab, Class 9 students of Isha Vidhya Dharmapuri were riveted as they learned to identify and understand the function of key electrical components such as resistors, capacitors, diodes, LEDs, switches, and wires. They then built simple circuits, tested them with multimeters, and reinforced their theoretical concepts—such as Ohm’s Law, voltage, and current.

Class 8 students of Isha Vidhya Tuticorin learned about the human skeletal system in the biology lab, referred to videos on the internet, and then used innovative eco-friendly materials to create a model of the human skeleton. This hands-on activity helped them understand the structure, functions, and importance of bones in the human body.

Class 8 students of Isha Vidhya Villupuram connected wires to a battery’s terminals and then attached the other ends to a nail and a bulb,which immediately glowed. They were thrilled with the result and learned how the metal nail conducted electricity to complete the circuit.

To understand how the water cycle leads to rain, Class 5 students of Isha Vidhya Tuticorin conducted a simple experiment. They poured hot water into a glass jar and placed a china dish with ice cubes on the jar’s mouth. They then eagerly observed the hot water evaporate, tiny water droplets condensing on the underside of the dish, and heavier drops eventually precipitating to the bottom of the jar.