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>> [Intro Music]
Today on Sciencey Stuff we are going to making a Mentos geyser rocket with Mentos and diet
soda. To put our Mentos in our bottle of soda, we need pack and we need tooth picks. We empty
out our Mentos from our Mentos pack. I've removed our foil from this Mentos cartage
thingy, and this what we have no foil inside it and our Mentos can fit in it and then fall
out. So it's perfect! Then we are going to poke a... Here is a good spot. ...Poke a tooth
pick right through... ...our cylinder. We have a lot of Mentos in here. Safety goggles
on! Mentos in here. Our soda being opened (inaudible) Perfect! We'll have to hold it.
>> [Throws bottle cap off screen] and... (Inaudible) >> [Soda fizzes out of bottle] ...and it's
perfect! VoilĂ ! We have our Mentos geyser with some soda and some Mentos. So our geyser
explodes sort of with soda because it um... the Mentos have little holes on it if you
look under it very closely with a microscope. So that's where carbon dioxide can form and
lots of it forms a-at a very in a very quick period of time. So once all that carbon dioxide
forms in the Mentos. The Mentos will start to dissolve and it will create lots of carbon
dioxide, So much that it will force some of the soda out with it up to make a geyser.