Disease, hard labor, starvation and violent confrontation are all possible and most likely
*Heat Transefer from a stove to a pan
*Chocolate melting because of a hot surface
*Water boiling because of a hot stove
One event was the The Boston Massacre
Farmers who moved to the city thought they would have a better life there. Most of the time, they had very little land, not enough to guarantee their survival. Two or three bad harvests ruined them. They had to ask for money to the landlord in order to keep working, but if they didn't have enough to pay them when the harvest came they would have to leave the land to pay their debt. With no place left to go, they moved to the city lured by promises of a better life that turned out to be false.
