How Does A Soda Bottle Rocket Work 😮

A tube is inserted into the bottles to connect them, and a tiny parachute is stuffed into the middle. As plastic fins are placed on the sides, each bottle is partially filled with water, and a bike pump builds air pressure inside. When it's launched, the pressure blasts the water out, sending it flying dozens of feet into the air. As the lower bottle empties, the tube slips out, and the parts separate. The top half then shoots out water to fly even higher, and as it does, the parachute pops out from the bottom half, letting it float down like a real rocket.