Problem: If you build a campfire, you start with a large stack of sticks and logs. As the fire burns, the stack slowly shrinks. By the end of the evening, all that is left is a small pile of ashes. What happened to the matter that you started with? Was it destroyed by the flames? It may seem that way. What do you think happened? The truth is that the same amount of matter still exists. The wood changed not only to ashes, but also to carbon dioxide, water vapor, and other gases. The gases floated off into the air, leaving behind just the ashes. Although matter was changed, it was not created or destroyed. Because the same amount of matter still exists, we can say that matter is conserved. You may wonder how it can be conserved if something is now missing? Assume you had measured the mass of the wood before you burned it. Assume you had also trapped the gases released by the burning wood and measured their mass and the mass of the ashes. What would you find? The ashes and gases combined have the same mass as the wood you started with. This example illustrates the law of conservation of mass.

Question: "Once a stack of sticks and logs is burnt what matter remains?"

Answer: "Ashes"
Answer: no

Problem: Representing yourself in court can be a tricky endeavor. There are confusing legal terms to learn, strict procedures to follow and volumes of case law that often need to be understood to prepare a case. Lake County officials and a private agency that assists indigent litigants in Illinois want to make the practice easier by creating a self-help center for people who choose to represent themselves in legal matters. The center, which will be housed in the law library at the main courthouse in Waukegan, could open later this summer. "I think it's going to be extremely helpful," Court Administrator Bob Zastany said. "There is a population out there that will take advantage of this resource." The self-help center will be the only one of its kind in the county. Only a few operate nationwide, officials said. The project is the work of Lake County circuit court officials and Prairie State Legal Services, a statewide agency with an office in Waukegan that provides information and legal assistance to poor and elderly Illinois residents. The organization has received a $25,000 grant from the Illinois Equal Justice Foundation, a nonprofit group that funds programs designed to increase access to legal information and assistance, to help pay for the effort. Prairie State will share the money with the county. The county's law library is on the first floor of the governmental center at 18 N. County St. The new self-help center will be designed to help litigants find the information they need to properly represent themselves in court, an undertaking that can be complicated and confusing. "Some people can do OK on their own, and some people can do OK with some help," said Linda Rothnagel, the managing attorney for Prairie State Legal Services. "But other people can't do it. It's not always easy." Self-representation is a right affirmed by the U.S. Supreme Court. The practice is far more common in civil matters than in criminal cases. In fact, self-represented litigants - formally called "pro se" in Latin, or "for oneself" - in criminal defenses are so rare that statistics about the practice generally are not kept, legal experts say.

Question: "Why can representing yourself in court be "a tricky endeavor"?"

Answer: "Because of the new terms to learn, procedures to follow, and case law to understand"
Answer: yes

Problem: The only home Hamilton ever owned was a Federal style mansion designed by John McComb Jr., which he built on his 32-acre country estate in Hamilton Heights in upper Manhattan. He named the house, which was completed in 1802, the "Grange" after his grandfather Alexander's estate in Ayrshire, Scotland. The house remained in the family until 1833 when his widow sold it to Thomas E. Davis, a British born real estate developer, for $25,000. Part of the proceeds were used by Eliza to purchase a new townhouse from Davis (Hamilton-Holly House) in Greenwich Village with her son Alexander. The Grange, first moved from its original location in 1889, was moved again in 2008 to a spot in St. Nicholas Park on land that was once part of the Hamilton estate, in Hamilton Heights, a neighborhood in upper Manhattan. The historic structure was restored to its original 1802 appearance in 2011, and is maintained by the National Park service as Hamilton Grange National Memorial. Alexander Hamilton served as one of the first trustees of the Hamilton-Oneida Academy in New York state. Later the Academy received a college charter in 1812, and the school was formally renamed Hamilton College.Columbia University, Hamilton's alma mater, has official memorials to Hamilton on its campus in New York City. The college's main classroom building for the humanities is Hamilton Hall, and a large statue of Hamilton stands in front of it. The university press has published his complete works in a multivolume letterpress edition. Columbia University's student group for ROTC cadets and Marine officer candidates is named the Alexander Hamilton Society.

Question: "What structure from Hamilton's estate is maintained by the National Park service as Hamilton Grange National Memorial?"

Answer: "A large statue of Hamilton"
Answer:
no