Play time! Name any own-made science experiments you came up with before age 7. Me? I'd seen earthworms halved and both sides moved. Curious me hauled a box of NJ soil into my closet and added a bunch o' worms. Promptly forgot. I can hear Mom's screams 50+ years later! Now you!🪱

I connected nails up to a battery and put them in salt water to try electrolysis.

That is hilarious! Do I dare ask which part of your or someone else's body you try to remove hair from? LOL

Not removal, just the process of turning water into hydrogen and oxygen (I think).