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Sunday, June 15, 2008

Secret Tips for Scoring High on Science Fair Projects

As an educator and science fair judge I have seen many great science projects and many poor science projects. What makes a project great. Following are some ideas for making a science fair project a winning project. First, you have to make sure you study, study, study, and understand your topic. It is very important that you follow the steps of the scientific method when studying your topic. That means that you make a hypothesis (prediction statement) and then test it to see if it is true or not.

Make sure you have enough data to test your hypothesis. I've seen projects fail because they only tested a few subjects. It is important that your conclusions answer your original question. You should have a log book that describes what you have done throughout the completion of your project. Your paper should be typed in APA format and contain references within the text and a reference list at the end of the paper. A reference list contains the sources that you used to write your paper. It is also a good idea to have charts and graphs showing your data and results. When completing your study, be sure to observe safety regulations so you are not putting yourself or anyone else in danger.

Your poster board should be neat, clean, and should present good visuals that are relevant to your study. When you are presenting your project to the judges, make sure to speak up and make eye contact. Judges understand that you are nervous but they can also tell if you are not prepared so in order to be less nervous make sure you study hard and be prepared to explain your project and answer questions. Very importantly, make sure you choose a topic that you are interested in and want to learn more about.

For a list of winning science fair project ideas visit
http://teachingpsych.googlepages.com/sciencefairprojectideas

- Dr. Rita Oliviera

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Vernal Equinox History and Traditions

From a technical standpoint the Vernal Equinox is an astronomical event, its one of the four quadrature days of the Earths orbit. However for people both modern and ancient, the Vernal Equinox marked the transition from winter into spring. The Vernal Equinox occurs on March 20th or 21st and is one of two days during the year when there are 12 hours of daylight and 12 hours of darkness, the other day is the Autumnal Equinox.

People have been marking and celebrating the Vernal Equinox for thousands of years. The Great Sphinx which was constructed over 4500 years ago on the Giza Plateau in Egypt, faces due east on the Vernal Equinox. The monoliths located at Stonehenge, which are estimated to be over 3000 years old, mark the position of the rising sun on the Vernal Equinox. In Central America the Ancient Mayan Caracol Tower and Temples of the Sun and Moon also have alignments that coincide with the suns position on the Vernal Equinox.

Most historians believe that this knowledge was important to ancient cultures in choosing a time to plant their crops. In Iran they celebrate Norouz (which roughly translates to new day) on the Vernal Equinox. In China they celebrate Chunfen on the Vernal Equinox. In ancient Europe they celebrated the arrival of the goddess of spring Ostara on this day. Ostara was also known as Ostera and Eostre in different parts of Europe. Many historians believe the Christian holiday Easter gets its name from Eostre, as she had an enchanted rabbit that could lay eggs. In more modern times the Vernal Equinox marked the first Earth Day celebration in 1971.

One of the odd traditions that that occur on the Vernal Equinox is egg balancing. The story goes that it is possible to balance a raw egg on its oblong end on this day. There is no truth to this rumor its just as easy (or hard) to balance an egg on its end on this day as it is any other day. This story is perpetuated by the media who usually run a small segment on it, during news shows on this day.

This article is Copyright Holiday-Central.net

Kevin Buyer runs the website http://www.Holiday-Central.net where he writes about origins, history, legends, and traditions associated with calendrics, celebrations, festivals, and holidays.

Who Else Wants a Bufo Alvarius Toad?

The reason why someone may want Bufo Alvarius toads may surprise you. It is to milk them. Perhaps the idea of milking a toad may seem like a joke. You may even have already thought that the punch line to the "how do you milk a toad?" joke would be "First you get a very small stool." But you may be assured this is no joke. People actually do milk Bufo Alvarius toads.

What is toad venom used for? The milky white venom of the Bufo Alvarius toad contains the alkaloid 5- methoxy- N,N- dimethyltryptamine (5-MEO-DMT) which has very powerful hallucinogenic properties. Although there have been rumors and urban legends about people licking toads to get high, those who use toad venom do not actually ingest it. Rather, they have been known to dry the venom and then smoke precisely measured quantities of it.

How do you get one of these remarkable toads? If you live in or wish to visit the southwest United States, the toad, known both as the Colorado River toad and the Sonoran Desert toad, is found mainly in the Sonoran Desert. Their known range reaches from the south east of California into lowland Arizona and extreme southwestern New Mexico, at elevations that vary from sea level all the way up to over 1500 meters.

Once you get to this area, you will want to know what to look for. The Bufo Alvarius is a large toad, the largest species native to North America. Their leathery skin coloration varies from olive brown to black, with warts colored pale orange and a beige colored undercarriage. It is remarkable for the large, unique oval to sausage-shaped glands on the upper sides of its arms and legs and on its neck. These are the glands that are milked for their venom.

A nocturnal amphibian, Bufo Alvarius spends most of the day under the ground and away from the bright sun and high temperatures of the Sonoran Desert. As darkness falls, they move outside and hang around moist areas near rivers and irrigation ditches. The best time to find them is during the breeding season, from May through July. Toad hunters should equip themselves with a cloth carrying sack and a good flashlight.

For someone who is interested in owning a Bufo Alvarius toad, whether for the purpose of milking its hallucinogenic venom or simply to have a fascinating and unusual pet, there is an alternative to making a trek to the Sonoran Desert and splashing around irrigation ditches with a flashlight after dark. That option is to purchase one, or perhaps a male and female pair of adult Colorado River toads. One company that offers these toads for sale, along with other ethnobotanical products, is Bounding Bear Botanicals. The company is based in Lawrence, Kansas, not the Sonoran Desert, but they have a convenient on-line system that allows customers to make purchases via the Internet. It should be noted that Bufo Alvarius toads are sold with the caution that they are poisonous, and should be kept away from children and animals.

Robert Scheer is a freelance journalist and consultant for the Bufo Alvarius Report web site. For more information visit http://www.bufoalvariusreport.com

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DNA Testing Improves Identification Of Survivors

We human beings are born to be unique. Although twins of similar features and sexes are hard to be differentiated, there is still one big difference if you look enough underneath all the layers of organs. The answer lies in the genetic markers in our DNA.

In this case, we can even reconstruct genetic profile of someone distant in your family tree or missing family member as gene inheritance happens in family like from grandparents to parents and so forth.

This identification method that is now being used for situations that, due to decomposition and the loss of medical records, have exhausted all other available identification methods.

For example, the World Trade Center 2001 destruction, Hurricane Katrina 2005 and South East Asia tsunami chaos 2004 which resulted in thousands of death which may need few days or weeks to retrieve the bodies and to be brought back to the morgue as weather, lack of humanitarian volunteers, badly affected location and also lack of technology could improve situation.

Forensic and postmortem protocols could check on features like dental, fingerprint, sex, hair color and others. In addition, with further implementation like DNA matching, it is necessary for identification of children who were lacking little antemortem dental or fingerprint data.

With standardized procedures, it would be likely for months to correctly match the corpse using genetic markers. In addition, roughly only 50 to 60% of the 3025 persons who died in 9-11 chaos were managed to be identify in 18 months.

Certain DNA markers that are shared among a deceased individuals DNA profile and several survivors reference sample profiles indicate that a relative has been found and can now be identified. Of course the high cost of DNA testing and lack of morgue with the expertise in those destructive places may lead to slow identification.

In 2006, the DNA Shoah Project was set to achieve its goal to give the departed Holocausts victims the last respect they deserved and to create a DNA database that can serve as both a genetic family tree and a memorial to those who perished.

The hope was to match these remains with DNA samples gathered from Holocaust survivors and from descendants of the departed.

The projects second aim: to unite those orphaned by the Holocaust with a close relative who survived. With a large database of living survivors, internal matches among them could also turn up.

DNA typing has often been portrayed in the media and the courtroom as a controversial technology but in a way, it certainly acts as a helping tool in identification tool in survivors or dead bodies. People say dead bodies dont talk, but if you study deep to their bones, they tell stories untold.

Nevertheless, the basic premise of the argument is valid and has been incorporated into recommendations about how forensic DNA testing be conducted and interpreted.

J.J. Yong, a DNA blogger with wide interest in DNA testing, genealogy, phylogenetics - as long they are related to DNA. He truly believes that amazement of DNA is like bringing us closer to humanity or humility of mankind.

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