Reference electrode

Okay kiddo, have you ever heard of a battery? It's like a little power source that can make things like toys and electronics work.

Well, sometimes in science and chemistry, we need to measure something called "electric potential" or "voltage". It's kind of like measuring how strong the battery is. But we need a special tool to do that, and that tool is called a "reference electrode".

A reference electrode is like a little helper that helps us measure the voltage in a solution. It's like a special battery that doesn't actually give any power, it just stays the same voltage no matter what. Sort of like a measuring stick that has a set length.

When we want to measure the voltage in a solution, we put the reference electrode in the solution and measure the difference between the reference electrode and whatever we're trying to measure. That difference is the voltage we're looking for.

So, a reference electrode is like a special tool that helps us measure electricity in solutions. It doesn't give power like a regular battery, it just stays the same voltage all the time to help us compare and measure other things.