ANDREW LEE
Electrical Conductivity with Fruit and
Vegetables
The purpose or
question of my experiment
is: “ Which are better
conductors, fruits or
vegetables?”
My
hypothesis is: “If I test the
electrical conductivity
with fruits and vegetables,
then the fruits would be
the better conductors
because there is citric acid
in many fruits. The
materials for this
experiment are 1 apple,
banana, orange, lemon,
lime, potato, onion,
tomato, cucumber, radish,
6 volt battery, multimeter,
4 wires, and 8 alligator
clips.
For the procedure:
first you have to get all of
the fruits and vegetables,
second put 1 zinc nail and
1 copper coil wire in each
fruit and vegetable, third
set the multimeter to 20
volts, fourth connect one
black wire into the
multimeter and connect it
with the other black wire
and connect that to the
zinc nail, same with the
red wire but connect it to
the copper coil wire, fifth
record the data from the
multimeter, sixth repeat
steps 4-5 for every fruit
and vegetable. The results
for the experiment show
that the the fruits were
the
better
conductors thanks to the
citric acid.
The dependent
variable for the
experiment would be
measuring how much
voltage for each fruit or
vegetable there was, the
independent variable
would be the different
types of fruits and
vegetables that I was
using, and the constant or
the controlled variable
would be the same type of
battery. In the end my
conclusion is that the
fruits had better voltage
than the vegetables and I
learned that both fruits
and vegetables can
conduct electricity but,
fruits can conduct better
because fruits have citric
acid!