How To ~ Water Rockets

In this tutorial STEM will teach you how to make Water Rockets!


This experiment includes a bottle that gets launched. Keep your distance when firing and don’t do this in a crowded area. Bottles can be sharp after a few uses.


  • Get a bottle that you can attach to a pump. (Adapter may be required)
  • Fill anywhere from ¼ to ¾ with water
  • Attach pump
  • Pump up and be aware, the bottle can shoot off at any time!


Some bottles can be reused and will be fine but if there is any damage to the surface or screw cap disuse as this may not work and may be dangerous.


STEM Club is NOT responsible for any injuries caused by the Water Rockets