
Sophia and Kayleigh
In Ms. Peterson’s science workshops, Ms. Peterson blew up a balloon and we tied it to a string that went across the room. When Ms. Peterson let go, the balloon flew across the room. Then we put pennies in it, and 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 to get across the room! The law we studied was: “For every action there is an equal and opposite reaction.” That was what Sir Isaac Newton said in his third law of motion. I wonder why the red balloon spun in circles, the green balloon deflated, and the yellow balloon went the fastest and smoothest.
(In the picture above Ms. Peterson is getting ready to let go of the balloon and watch it fly smoothly across the room.)