Class III & IV Activity - Making a light-up Diwali greetings card using copper tape circuits The students of Class III & Class IV had a fun filled activity session making a light-up Diwali greetings card using copper tape circuits. This practical allows children to create a simple electrical circuit using adhesive copper tape, a battery and a coloured LED. Once they learn the basics of a paper circuit, they can start designing their own unique cards and projects using these materials. https://youtu.be/tY9f7yn7gxI