Mentos and Diet Coke Rocket





Introduction: Mentos and Diet Coke Rocket

Launch a 2 liter over your house, No promises!
Also please use ccaution when performing this experiment there is always a possibility of injury or damage to property, please launch in wide open area with pleanty of space in all directions and never attempt to launch in the direction of another person as flying 2 liters can hurt!

Step 1: Purchasing!

Go to you local gas station or grocery store and purchase as many materials desired, for one launch you need only:
1- 2 Liter Bottle of Diet or Diet Caffeine Free Coke(Pepsi does not work as well)
2- Mentos(Mint not fruit flavored)

Step 2: Preparation

Chew 1 mentos for approximately 10 seconds
Remove Cap from 2 liter
Press mentos into the center of the cap of the 2 liter
Press whole mentos into cap on top of chewed mentos so that it sticks
Replace Cap

Step 3: Shake and Launch!

Shake bottle so that mentos and Diet Coke mix
Hold Bottle by top with one hand place around the neck so that the bottle is upside down
Swing Bottle over head and slam on ground sideways

Step 4: Liftoff

If slamming process went correctly, the cap of the 2 Liter will hit the ground and break off, diet coke will then be forced out of the neck creating thrust forcing the bottle off the ground in an upward motion. This thrust is greater than the weight (Weight=Mass*acceleration due to gravity) of the bottle(Yes weight is a force) so it propels the bottle in an upward fashion at a great rate of speed reaching a terminal velocity that gives it the capability to reach heights of 40+ feet!

Step 5: Video Proof

Don't think it works well here's some proof!



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    will this project be appropriate for a chemistry project?

    anybody get hurt---seems dangerous the way You do it

    Is this a chemical reaction or a physical ?

    actually its a physical reaction only because nothing new is being created

    if this is "just" a physical reaction, how come the bottle is propelled up?!?!

    The bottle is propelled up.... mate.... that IS a physical reaction! Can't believe that there is NO chemical reaction happening somewhere in the bottle though. Cheers Royce

    It is all physical the mentos it creating an area for the carbonation buble to form fast enough that it builds presure enough to lunch the bottle


    actually i think your method would not work. the chemicals play a small part in the reaction. the most important part is the outside of the mentos. there are tiny little craters on the outside of the mentos where the bubbles can form and rise up when they are heavy enough. its is important to put them in whole cause i dont think it would be possible at all to launch it over a building chewed up.