A vibrant cartoon with bright colours and smooth animation. Mobin and his classmates are going to participate in a "Spinning Tops" competition. With guidance from their teacher, they make several paper spinning tops and then play and compete with them in the schoolyard. During the competition, the children notice that the spinning tops do not all reach the ground at the same time. They want to find out why some spinning tops take longer to reach the ground. Each group presents its prediction. Mobin's group predicts: "The wider the wings of the spinning top, the longer it takes for the spinning top to reach the ground." The children hold the paper spinning tops in their hands and speak in Persian throughout the clip. At the very end of the clip, display the Persian text: "تهیه کننده پریا قدسی".