How to Build a Chemical Rocket

Here is a little project to amuse your friends, young and old alike. To build this rocket, you will need a few simple items:
- 2 plastic bottles ;
- 4 chopsticks ;
- toilet paper ;
- string ;
- adhesive tape ;
- a cork ;
- a box-cutter ;
- white vinegar;
- baking soda.

Be careful!  The rocket lifts off as much as several meters high.  Make sure that the surrounding area is clear before conducting the experiment.

See you soon on Pratiks !