One day, a man named Archimedes was asked too go too the kings castle. This was because he thought that the gold smith had scammed him by keeping the gold the king had given too him too make the crown with and swapping it with silver.
One problem was that when the king asked him too investigate whilst he was he couldn't damage the crown.He was thinking and thinking and when it come too him. when he sat in the bath the amount of water that poured out was how much of him was in the bath. H e had found the answer he was going too give the crown a bath.
he then put the crown in the water and measured how much water came out. then the real gold. gold is more dense than silver so what ever one weighed most was more dense.