Fruit battery experiment

Zinc and copper electrodes are reasonably safe and easy to obtain. Other metals such as lead, iron, magnesium, etc., can be studied as well; they yield different voltages than the zinc/copper pair. In particular, magnesium/copper electrodes can generate voltages as large as 1.6 V in lemon cells. This voltage is larger than obtainable using zinc/copper cells. It is comparable to that of standard household batteries (1.5 V), which is useful in powering devices with a single cell instead of using cells in series. Lemon science fair project We gratefully acknowledge that Science World is located on the traditional, unceded territory of the xʷməθkʷəy̓əm (Musqueam), Sḵwx̱wú7mesh (Squamish) and səlilwətaɬ (Tsleil-Waututh) peoples.

Black tea contains pigment called thearubigins. These are typically a red/brown colour in water, however if the water is acidic the pigment changes to a much lighter colour. Lemon juice is acidic and by adding some drops of lemon you quickly change the pigments in the tea! These pigments also become much darker in alkaline conditions. Which Phones Will Be Hot This Summer One way to generate electricity from fruits is to make basic batteries using electrodes and whole pieces of fruit. The acids within the fruit, namely citric acid, can be used, with the application of some science, to turn the fruit into a kind of rudimentary battery.

A Lemon Battery Science Experiment conducted by a 5th grader: A Lemon Battery Science Experiment creates an electrical current flow through the juice of the lemons and lights an LED bulb. Leave a Comment Cancel Reply Set up at our dining room table with my laptop, we watched the YouTube tutorial for the Lemon Battery Project.

Print this Experiment Lemon Battery Science Fair Project The source of electric energy in this demonstration is the combination of copper and zinc strips in the citric acid of the lemon.