https://mindlabkids.s3.ap-southeast-2.amazonaws.com/user/2/field_video/Pos%20v%20neg%20question/Pos%20v%20neg%20question__720.mp4

1 person

15 mins

Ever wondered why wires have positive and negative ends? Does that mean one side is happy and one is sad? Help Nora Carrot suss this out!