Science- Lemon Battery


Today is day 14 of the 30 day 4H challenge to inspire kids to do. Unfortunately, we fell a day behind and didn’t make the lemon battery as suggested by the 4H 30 challenge calendar, check it out here.

The Activity

Here is a link to the 4H website with detailed instructions how to preform this activity. It was pretty easy. We didn’t use a penny or alligator clips. My husband informed me about this cool device we own called a digital multimeter, Cen-Tech 11 Function Digital Multimeter with Audible Continuity. Below is a newer modal.

On the multimeter, we set the maximum current that can be measured on the device to “200m” DC Amps range. Then we tested a few different fruit around the house starting with a lemon. The reading read for the lemon was around negative 89. The reading was constantly changing like the electricity changes through the wires in our house.

We tested a nectarine which read negative 60. The nectarine is slightly larger than the lemon.

Finally, we tested a yellow zucchini which read around 19. No negative.

Did you know? Zucchini are actually a fruit because of the seeds inside their center.

My husband and I held each end to read the electricity moving through us. Very interesting activity.

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