Mad Science!

OK everyone!!So now I will give many hard Science Questions,that is your worst nightmare!! Ha,ha,ha! Ha,ha,ha..arggh!Er...I swallowed my mint..

Stone Age:

1. When was Stone Age introduced?
2. When did Stone Age start?
3. How long did it last?

Bronze Age:

1. What is metallurgy?
2. What is an alloy?
3. What happens when you mix tin and copper?

Iron Age:

1. What do you get when you mix iron and carbon?
2. When did Iron Age began?
3. Where did Iron Age appeared?

Enjoy answering these questions...............

By Fahmi