In Mrs. Petersons science workshops, Mrs. Peterson blew up a balloon and we tied it to a string that went across the room. When Mrs. Peterson let go, the balloon flew across the room. When there were pennies in it, it didn’t go very far. It only went about half as far as it did without pennies in it. The next day we tried different balloons. We tried a yellow, lumpy balloon, a long, straight, green balloon, and a small, red balloon. The yellow balloon went the farthest and the smoothest. The red balloon didn’t go anywhere but it spun in circles. The green balloon simply deflated immediately. When we timed the normal sized balloon, it took only 4 seconds!

By Griffin and Seth