What is electrolysis?

Electrolysis is when we use electricity to make a chemical change happen inside a liquid or solution.

Imagine you have a special kind of water, not just regular water, but one that can be pulled apart by electricity. This water has some tiny helpers in it called ions, which are like little charged balls ready to move when asked.

Think of electrolysis like a game where two teams compete for a prize. The team on the left uses negative electricity and grabs one kind of ion, let’s call them hydrogen balls, and pulls them out of the water. Meanwhile, the team on the right uses positive electricity and takes another type of ion, say, oxygen balls, and also pulls them from the water.

This is why you might see bubbles forming at each end, those are the ions being pulled away to make new stuff, like gases or metals!

If you use electrolysis on water, it can turn into hydrogen gas and oxygen gas, just like splitting a water molecule into two parts. It’s kind of like breaking apart a sandwich, instead of bread and cheese, you have bubbles of gas!