Fruit Battery

Fruit Battery
Steps needed to do the
1.Set the fruit on a table and gently roll it around to
soften it up. You want the juice to be flowing inside the
fruit without breaking its skin. Alternatively, you can
squeeze the fruit with your hands.
2.Insert the zinc and copper nails into the fruit so that
they are about 2" or 5 cm apart. You don't want them to
be touching each other. Avoid puncturing through the end
of the fruit.
3.Remove enough insulation from the leads of the light
(about 1") so that you can wrap one lead around the zinc
nail and one lead around the copper nail. If you like, you
can use electrical tape or alligator clips to keep the wire
from falling off the nails.
4.When you connect the second nail, the light will turn on!
What we know about fruits
being used as batteries?
Acidic fruits can produce electricity
with chemical reactions with certain
Vegetables can also be used
as batteries.
Only fruits and vegetables that contain acid
or other electrolyte can be used as fruit
what do we need to know?
How much volts are there in a fruit?
Can fruits be used to make a
television function?
How long can the "battery" last?
Does the level of sourness
affect the level of voltage in a
What type fruits can be
used as batteries?
Reasons for the hypothesis
The lemon is acidic which
helps their juice to
conduct electricity.
Fruits have charges
that can be converted
to negative and positive
charges through copper
and zinc materials.
The zinc is oxidized inside the fruit, exchanging
some of its electrons in order to reach a lower
energy state, and the energy released provides the
The lemon is able to power
the light bulb.
Materials needed
light bulb
Copper nail
Zinc nail