QUES: Chemical changes produce new substances. For this reason, they often cannot be undone. Some chemical changes can be reversed, sort of. To do so requires another chemical change to take place. For example, you can undo the tarnish on copper pennies by placing them in vinegar. The acid in the vinegar reacts with the tarnish. This is a chemical change that makes the pennies bright and shiny again. You can try this yourself at home to see how well it works. Other chemical changes cannot be reversed at all or may be difficult to do. Rusting is a chemical change. If metal rusts, the best you can do is to sand off the rust to get down to the shiny metal. Although the metal may now be shiny, the rust was removed. The rust was not changed back into the original metal. Some chemical reactions occur in only one direction. These reactions are called irreversible reactions. For example, you cannot change a fried egg back into a raw egg. Can you think of some other irreversible reactions related to cooking? Would you like a piece of cake?
Do you have any questions?
MY QUESTION: What can you do to make pennies bright and shiny again?

QUES: What a time of it Dawson's Landing was having! All its life it had been asleep, but now it hardly got a chance for a nod, so swiftly did big events and crashing surprises come along in one another's wake: Friday morning, first glimpse of Real Nobility, also grand reception at Aunt Patsy Cooper's, also great robber raid; Friday evening, dramatic kicking of the heir of the chief citizen in presence of four hundred people; Saturday morning, emergence as practicing lawyer of the long-submerged Pudd'nhead Wilson; Saturday night, duel between chief citizen and titled stranger. The people took more pride in the duel than in all the other events put together, perhaps. It was a glory to their town to have such a thing happen there. In their eyes the principals had reached the summit of human honor. Everybody paid homage to their names; their praises were in all mouths. Even the duelists' subordinates came in for a handsome share of the public approbation: wherefore Pudd'nhead Wilson was suddenly become a man of consequence. When asked to run for the mayoralty Saturday night, he was risking defeat, but Sunday morning found him a made man and his success assured.
Do you have any questions?
MY QUESTION: Who was being praised by all due to the fact that they had achieved honor?

QUES: Oscar-winning actress Joan Fontaine died Sunday, her longtime friend Noel Beutel said Monday. She was 96. Fontaine died "very peacefully" in her sleep of natural causes, Beutel said. She was in her Carmel, California, home. She is survived by her older sister, actress Olivia de Havilland -- with whom she had not spoken for decades. Fontaine was born Joan de Beauvoir de Havilland in 1916 in Tokyo, Japan, where her British father was a patent lawyer and teacher. She and her sister moved to Saratoga, California, with their mother in 1919 when her parents separated. Fontaine was a teenager when she began her acting career as Joan Burfield in the 1935 film "No More Ladies." She later adopted the stage name Fontaine -- the name of her mother's second husband. She wrote in her 1978 autobiography, "No Bed of Roses," that her mother, who was an actress, began encouraging the rivalry with her older sister at an early age. The feud extended to their careers when both sisters were nominated for best actress Oscars in 1942. Fontaine, who was nominated for Alfred Hitchcock's "Suspicion," beat her sister Olivia de Havilland, who was nominated for "Hold Back the Dawn." De Havilland won the first of her two Oscars in 1947 when she was given the best actress award for "To Each His Own." De Havilland and Fontaine remain the only sisters who have best-actress Academy Awards. The long-standing feud with de Havilland was at such a peak during one Oscar winners' reunion in 1979 that they had to be seated on opposite ends of the stage. "I was shocked and saddened to learn of the passing of my sister, Joan Fontaine ... and I appreciate the many kind expressions of sympathy that we have received," a statement released by Olivia de Havilland to CNN said.
Do you have any questions?
MY QUESTION: How old was Joan Fontaine when she began her acting career?

QUES: Defeated last month for re-election, Gov. Roy Barnes announced Tuesday that he will spend his first six months out of office as an unpaid attorney for the Atlanta Legal Aid Society, where he will represent poor people. "One day I'll probably do some legal work that I will charge a handsome fee for - at least I hope there are those that are still willing to pay," he told reporters. "But for now, I think it is important to fulfill my duty as a lawyer to help those who need it the most, to speak for those who cannot speak for themselves and to defend those whose life and livelihoods depend on it," he said. Previous governors have gone to prestigious law firms, joined corporate boards or returned to thriving businesses. "I don't think I've ever heard of anybody doing this before," Emory University political science professor Merle Black said. "If he's actually going to represent individuals for that organization, they're going to get great representation. You're going to get some powerful legal muscle there," Mr. Black said. Mr. Barnes said he already has his first case, but he wouldn't say what it is. Atlanta Legal Aid provides civil services to poor people in five metro Atlanta counties. Mr. Barnes said he was hoping to send a message to other lawyers. "This privilege to practice law is just that - it's a privilege. And it comes with a cost and it comes with a bill . We as lawyers have a responsibility to make sure that everyone, regardless of whether they can afford it or not, has quality representation. And if we don't do that, then we're not much of a profession," he said. Steven Gottlieb, the society's executive director, said, "I can't imagine anything that could be better than to have the governor of the state, in his first act as a private citizen, donate six months of his time to represent poor people .
Do you have any questions?
MY QUESTION:
After losing re-election what did Roy Barnes say he would do?