Charge via induction (straw / balloons and small pieces of papers)
When a balloon is rubbed against a piece of wool or hair, it picks up electrons and becomes negatively charged. This negatively charged balloon can then attract neutral objects like paper. The negatively charged balloon attracts the neutrally charged paper by first repelling the negative charges away, which leaves the positive charges closer to the balloon. Since opposites attract, the paper is attracted to the balloon and is picked up.
Feedback
We are actively collecting feedback to improve our website, communication and processes to help students, teachers and curious people so that they can make the best use of the services at Shillong Science Center. Give us your feedback so that we can serve you better.