In Lord of The Flies, what is the "scar" on the island and what was it caused by?
In Lord of the Flies, a traumatic event takes place and a group of schoolboys, ranging in age from about six to twelve, are all stranded on an apparently deserted island, with "no grown-ups' to supervise them. Piggy, the most intelligent boy on the island and the one who will guide Ralph in his attempts to be a good leader, points out to Ralph that there is no-one to take any news of the boys back to England so they can be rescued. Before the boys landed on the island, he overheard the pilot talking about an atom bomb and so it is almost certain that everyone on the plane is dead.
The boys arrive on the island via a chute or "passenger tube" from the plane which makes a "long scar" into the landscape of the jungle. The scar has cleared away some of the dense foliage allowing Ralph to stand in the middle of it and look around. Ralph and Piggy examine the effects of the passenger tube on a "jagged end of a trunk" as it has apparently done some damage and has left a scar of its own. The chute is nowhere to be seen, however and the boys consider the possibility that it was "dragged out to sea" during a storm. It is likely that there were still some boys in it at the time but the boys try not to dwell on that possibility and they continue exploring.
It is significant that Golding calls it a scar because a scar would normally be found on the skin during or after the healing process and so the scar on the island carries its own significance as the boys must fight the forces of evil. Those who survive will carry a psychological "scar" forever.
The scar was the spot where the plane crashed. It formed a scar because by crashing in pristine land it left a conspicuous spot of broken trees. The scar is also symbolic: it shows the savagery of human beings as the destruction caused to the pristine land is done by a product of man (the plane) and it occurred the moment they landed on the island. The scar also serves as a reminder of this destructive nature and can be seen to build on the plot of the story. Ralph, Jack and Simon, who together represent different human qualities, arrive at the highest point of the island and noticed its pristine nature including the “scar”. Ralph then says that “this belongs to us”. In this case he not only accepts the good which is the pristine island but also the destructive nature represented by the “scar”.
The "scar" on the island is the plane crash site. Until the crash, the island was untouched by humanity. So, in a larger sense, the "scar" represents the destructive nature of human beings.
While Golding might have been drawing the contrast between the belligerence of humanity and the purity of nature, it's well to remember that nature can be just as destructive on own its own... witness the awesome power of the countless natural disasters throughout history.
The scar is the area of the plane crash. The plane was broken into pieces and the island had some damage from the plane.
This is called a scar because a scar is usually interpreted as a "reminder" of something unfortunate happening. Being stuck on the island is basically an unfortunate event and the plane crash area (scar) is there as a reminder of how they arrived there and the start of the unfortunate event.
The "scar" on the island was the place where the transport plane was shot at and it crashed head-on into the thick jungle of an deserted island. It is trying to represent the horrific natural destruction that it had caused when it crashed in the island.