In one sentence, describe what the following article is about: These markings will be etched into the metal. If the jewelry has a clasp then the marks are probably on the back of the clasp. The jewelry might also have a small metal tag etched with marks hanging from the end. Lastly, search the largest parts of the jewelry. If your jewelry doesn't have any markings at all it's probably not a precious metal. Some coins and jewelry will have a stamp with the numbers “999." This indicates that the jewelry is made of pure silver. If you see a stamp with the numbers “925” followed or preceded by the letter “S," you have sterling silver. Sterling silver is 92.5% pure silver that's mixed with another metal alloy, usually copper.  For example, a stamp that says “S925” indicates that the jewelry is sterling silver. Pure silver jewelry is rare as pure silver is soft and easily damaged. Platinum is a very rare and expensive metal. Therefore, all platinum jewelry will be marked to show authenticity. Look for the words “Platinum," “PLAT," or “PT” followed or preceded by the numbers “950” or “999." These numbers refer to the purity of the platinum, with “999” as the most pure. For example, an authentic piece of platinum jewelry might have a stamp reading “PLAT999." Most pure precious metals aren't magnetic, so if you place a magnet near the jewelry, you shouldn't see any movement. However, if your platinum jewelry is reacting to a magnet, don't panic. Pure platinum is a soft metal, so alloys are added to strengthen the finish. Cobalt, which is quite hard, is becoming popular as a platinum alloy. Because cobalt is slightly magnetic, some platinum jewelry may react to a magnet.  Platinum/cobalt alloys will usually be stamped as PLAT, Pt950, or possibly Pt950/Co.  The most common alloy used to harden sterling silver is copper, which is not magnetic. If you have a piece of sterling silver jewelry with a .925 stamp that's attracted to a magnet, see a reputable jeweler to verify its authenticity.
Summary: Locate any identifying marks on your jewelry. Look for marks indicating silver jewelry. Find any marks indicating platinum jewelry. Run a magnet over the jewelry.

In one sentence, describe what the following article is about: Before you begin, ask yourself how detailed you want the family tree to be. If you're making a family tree for a class at school, you might only need basic information going back a few generations. If you're making a family tree that can be shared electronically, you might want to be as detailed as possible. Keeping the purpose of the tree in mind can prevent you from feeling overwhelmed as you find and sort through a lot of information. For a basic family tree, you might want to just use the names of your family members. This is also best if you want to make a simple tree design. For more detailed family trees, you can also include:  Birth and death dates Marriage information Places of residence Military service Photographs Start with the information you already have and ask family members to talk about their relatives. This will give you a basic outline which might be enough if you want to do a simple family tree. Or their information can be a starting point for future research. You may want to confirm details with other family members. For example, you could say, "Aunt Frances told me that grandma actually had four siblings. Do any of you know their names?" There are many websites that allow you to join and use their research tools. Most of these provide templates that you can fill in as you find information. You can also choose how you want to organize the details. Keep in mind that many sites charge annual or monthly membership fees. Websites can be especially useful if you're working on your family tree with other relatives. They can log into their accounts and add information to the family tree. Check to see if there's a genealogy library in your area or ask your local library if they have public records. Sort through birth certificates, census records, death certificates, and marriage certificates to get the information you want to include in your tree. You may need to ask librarians for help with using microfilm or microfiche, since many older records are stored this way. Keep track of all the information you get, so you can arrange it later. To create hard copies, you can print off templates, file index cards, or write the information in a notebook. Even if you want to work electronically, it's a good idea to have a physical backup with your research notes. If you want to organize the info electronically, use genealogy software that stores the information. Unlike genealogy websites, you won't need to pay membership fees for the software once you've purchased the program. Most genealogy software programs offer a family tree printing option. If your family history information is in a genealogy database, you may not need to design a family tree from scratch.
Summary: Determine how much detail you need for your family tree. Decide the type of information you want to display. Talk with your relatives to get background information. Use genealogy websites. Use libraries and public records to find information. Organize hard copies of the research. Store the information on your computer.

In one sentence, describe what the following article is about: Pulling an all-nighter is risky business. While most college students think that studying all night will help them learn more for an exam, all-nighters can actually damage grades. Exhausted students can't concentrate on exams, and cramming for a final can actually reduce the amount of information you remember. Well-rested students, on the other hand, are much more relaxed and alert when it comes time to take exams. Make time to sleep -- you'll thank yourself later. Cramming isn't worth it. This is known as a "freshman trick," meaning that good, veteran students learn very quickly that it is futile. What you may gain from extra study time won't compensate for the loss of alertness and ability to concentrate due to lack of sleep. Not only is this good for your body, it's good for your mind, too. It'll be more difficult to concentrate if you're hungry. Don't eat anything that may upset your stomach, though. Avoid the temptation to hype yourself up on caffeine. It may just make your more anxious. Stick to your normal breakfast -- your routine will be comforting. It may sound like a load of baloney, but being confident and thinking you'll do well can help calm you down and, ultimately, make you do well. And let's be honest, you've done what you could. So whatever makes you think you've got it, do it. It'll pay off when you're not breaking out in a sweat, fingers twitching in nerves When we intend to remember without having confidence that we can remember, the intention is weakened into mere hoping. The memory strengthens as you lay burdens upon it and becomes trustworthy as you trust it. Try to form the habit early on of relying on your memory before referring to your written reminders.
Summary:
Get some sleep. Eat breakfast. Be confident.