Balloon science

Today we did balloon science. We had a tray and a non-helium balloon to do the experiment. First Mr. T dropped the tray and the balloon seperatly but at the same time to show us how much faster the tray dropped compared to the balloon. Next he dropped the tray with the balloon on top of the tray and funny enough the balloon stayed stuck to the tray. I think the balloon stuck to the tray because the tray blocked all the air from underneath that would make the balloon float.