Scientific rocket from 1970's

This is a rocket from my youth. You print it, put some vinegar in the tube, wad up a bit of baking soda (arm and hammer brand works best). Stuff the wad into the end of the rocket, and stick the base onto it (while the rocket is still pointing at the ground. When you turn it over, the vinegar mixed with the powder and after a few seconds the rocket shoot up into the air,
in the tube there also has to be some air-space, otherwise it will not compress the air and your lift is not so high.