I said iron nuggets, not iron ingots.
Minecraft riddles

You can't find iron nuggets.
Here is the answer.
1. 1 Iron ingot = 9 iron nuggets.
2. If you smelt iron armor or tools, you get an iron nugget.
Cool, isn't it?

nah, you probably found that interesting when you first found that out. If you were not too familiar with Minecraft, you would be like, "Why are you telling me this? What does this have to do with my life?"
But then again, if you were to say something like that, you probably would not be in this group

no, doesn't work. you might be confused for something else. What would iron tools smelt into? Iron ore smelts into iron ingots, gold ore smelts into gold ingots, etc. You can also cook food, turn wood into charcoal, and make hardened clay. However, iron tools cannot be smelted, and even if it could, it would not be called "smelting"
#1 collect them
#2 mine them