1 bottle of mineral water, 1 football needle, 1 bicycle pump,
Punce a small hole in the cap of the mineral water bottle and pass the air needle through it, this is important
< p>Put half a water bottle upside down on a pitcher (you can use a large drink bottle without the head and tail, which can hold a water bottle mineral water)Now inflate the mineral water bottle through the air needle until the air pressure reaches the limit. The bottle cap bursts and shoots. . .