LILLIAN SHEHAN
Pepsi Balloons
The purpose of my
experiment was to find out
if Diet Pepsi or Caffeine
Free Diet Pepsi makes a
bigger balloon with a
Mento added to it. I
hypothesized that the Diet
Pepsi would make a bigger
balloon than the Caffeine
Fr e e D i e t Pe p s i . To
conduct my experiment I
n e e d e d t h e fo l l ow i n g
materials: Diet Pepsi,
Caffeine Free Diet Pepsi,
Mint Mentos, and
balloons.
Once I had my
material, I put a Mento in
six balloons, put the
balloons’ rims over the
bottles of Pepsi, and
bumped the Mento into
the Pepsi bottles.
The independent
variable was the type of
Pepsi. The dependent
variable is the balloon
size. The constants/
controlled variables were
the amount of Pepsi, the
number of Mentos
added to the Pepsi, and
the type of balloons.
In the end, my results
didn’t support my
hypothesis because my
hypothesis was that the
DIET Pepsi would make
a bigger balloon, but the
Caffeine Free Diet Pepsi
made the biggest balloon
with a Mento added. I
learned that Caffeine
Free Diet Pepsi makes
more carbon dioxide
(bigger balloon) with a
Mento added than Diet
Pepsi with a Mento
added.