For some reason, doing kiddie science projects can be fun for adults. Ever done one of those off-the-shelf science lab kits with your kids. You’d be amazed at times that even the simplest activities in science can be entertaining.

Ever did one of these lemon battery experiments as a kid? It’s simply cutting a lemon, inserting a zinc-coated galvanized nail (-) and a copper penny (+). Hook it up with wires with gator clips. Around two lemons connected in series can light up a flashlight bulb.

Better yet, view the video: