Do you know what propels an inflated balloon when you let it go?
The air being released from the balloon is not pushing against the surrounding air it is actually pushing against the balloon as it is squeezed out. 11" round balloons come in assorted colors. Can be used for propulsion experiments and science parties. Sold in bags of 30.
Children under 8 years can choke or suffocate on uninflated or broken balloons. Adult supervision required. ...