ELI5: Explain Like I'm 5

Catalysis

Catalysis is like adding a superhero to a chemical reaction. You know how when superheroes come in to save the day, they make everything happen more easily and quickly? Well, that's what a catalyst does in a reaction.

Imagine a group of people trying to lift a heavy box. They are all trying their best, but it's still tough to lift. Suddenly, a very strong person shows up and starts helping. The people can now lift the box much more easily and quickly. That's what a catalyst does in a reaction.

In a chemical reaction, some molecules are trying to combine or break apart, but they need a little help to do it. That's where a catalyst comes in. It's like a special ingredient you add to the reaction, and it makes everything happen faster and more smoothly.

Just like how the strong person in our earlier example was not actually part of the group lifting the box, a catalyst is not used up in the reaction. It just helps make the reaction go faster and more efficiently.

Catalysis is used in many different reactions, from making car parts to processing food. Without catalysts, these reactions would take a long time or require lots of energy. But with the help of catalysts, they can happen quickly and easily.