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April 4, 2012     Sentinel Tribune
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April 4, 2012

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SENTINEL TRIBUNE EDUCATION Wednesday, April 4, 2012 Page 7 SCI-IOOL WWG Speech Team Participates MENU in Sub Section 11 Tournament Spring is here and we are well into the busy fourth quarter of school. Seniors are fmalizing their future plans after high school graduation. There are 42 stu- dents scheduled to graduate on May 20, 2012. As of now there are 18 seniors planning to go to a four year college, 16 seniors planning to go to a two year college, 5 seniors are going in to the workforce, 1 senior is doing military service, and 2 seniors are undecided. Our four scholarship award nights for seniors begin with the April 30- FFA Awards, followed by the high school Band Concert, the high school Vocal Concert, and the high school Athletic Awards. Students who wish to take the ACT should contact me for a registration packet, or register online at www.acts- . Our high school code is 242665. The ACT price is $34.00. Adding the writing test is $49.50. The last ACT test date this school year is June 9, 2012. Fee wavers are available in my ofce. Enjoy the beautiful spring weather. If you have ques- tions or concerns, please give me a call anytime. April 9-13, 2012 Monday: No School Tuesday: Chicken nug- gets, hash browns, carrot sticks, mixed fruit, Rice Krispy bar, wheat bread, milk Wednesday: Salisbury steak, mashed potatoes/ gravy, vegetables/dip, peaches, wheat bread, milk Thursday: Hot ham & cheese, baked beans, car- rot sticks, pears, milk Friday: Tony's pizza, tuna mac, carrots, fresh fruit, wheat bread, milk National Volleyball Center Tournament Loggers 18s Black takes 1st in the Silver Division at Rochester National Volleyball Center Tournament. Back row from left: Madison Takle, Kelsi Wahl, Dayna Comnick, Halley Osland, Paige Erickson. Middle Tow : Shiney Her, Shelby Schultz, Alexa, Byers, Darian Glib, Hunter Priegnitz. Front row: Abby Herding. Submitted photo WWG All Conference Picks Sentinel Tribune available at: Hoyt Oil & Convenience Bubai Grocery Thrifty White Drug, Maynards Grocery, ExpressWay Shady Drive Inn Red Rock All Conference pick Paige Erickson (right), and Honorable Mention Anne Woelber Gotf Corner By Digger Phelps Front row from left: Mandy Yang, Natalie Villegas, Cindy Lohre. Back row: Thomas Knudson, Sawyer Helgeson, Logan Hotzler, Marki Hubin, Amelia Malmberg, Zuag Paj Her. Submitted photo Under the category of "who would have ever thought??" comes the earliest official opening in recent memory for Rolling Hills on March 10, 2012. At present, the greens and fairways resemble the normal look for the end of May, and play has begun at a hectic pace. Those of us who have been around here for a long time have no excuses for not keeping up with the "snow-birds" this spring. At any rate, as most of us have observed on more than one occasion, "WE DESERVE IT!!!" after the past couple of years. The men's leagues are still more than a month away from starting, but be sure to firm up your spot by signing up in the clubhouse or by speaking directly to Dwayne, Denise, or Digger. Present plans are to disseminate schedules, rules, etc. some- time within the next two weeks. Ladies' league is also being set up, and you're encouraged to check with Jan Lindaman if there are any changes from the past year's Four WWG Speakers fin- ish with Medals On Saturday, March 31, the WWG Speech Team trav- eled to Tyler to participate in the Sub Section 11 Speech Tournament. The following schools took part in the tour- nament: Lincoln HI, Minneota, Pipestone, Murray County Central RTR, Tracy- Milroy-Balaton and Westbrook Walnut Grove. The following students presented WWG. Cindy Lohre in Serious Drama, Marki Hubin in Discussion, Thomas Knudson and Logan Hotzler in Drama Duo, Natalie Villegas in Discussion, Sawyer Helgeson in Serious Prose, Zuag Paj Her in Serious Drama, and Amelia Malmberg in Creative Expression and Mandy Yang in Serious Drama. The following WWG stu- dents earned a spot at the Section Final Speech Tournament which will take place at SMSU in Marshall on Saturday, April 14. Sawyer Helgeson placed first in Serious Prose, Zuag Paj Her placed third in Serious Drama and Amelia Malmberg placed fourth in Creative Expression. Marki Hubin placed as a sec- ond alternate in Discussion. COTTONWOOD Co. 4-H April 10 - Mt. LakeAfterschool Adventure, 3:15-4:30 p.m. 15 - Camt Counselor Planning Meei ing,Slayton 16 - Windom Afterschool Adventure, 3:30-5 p.m. 17 - RRC Afterschool Adventure, 3:30-5 p.m. 17 Shooting Sports -Archery Practice, Windom Arena, 7 p.m. 21 - State Project Bowl, Foley 28 - Let's Paint Run-a- way, Windom High School, 9 a.m.-12 p.m. 28 - Cloverbuds, Windom High School, 10-11:30 a.m. 30 - Mt. Lake Afterschool Adventure, 3:15-4:30 p.m. teams. The club will be hosting an Easter Brunch next Sunday. This is something new this year, so come out and enjoy the nice weather if you don't have other plans. The ladies will again be hosting a Ladies' Night Out/ Style Show on May 4. Tickets are available from ladies' golf committee mem- bers or at the clubhouse. The Rolling Hills annual meeting and spring party is scheduled for Apri114. There will be an election of new board members as well as discussion relative to the course and its status. Any stockholding member is eli- gible to vote and encouraged to attend. The annual meet- ing is scheduled for 5:30 p.m. with a regular board meeting to follow along with the Spring Party/Social. All in all, it is shaping up to be a very busy time at the course so get out and sharpen up your skills early. We'll see you on the course!!! Weekly Science Quiz by Douglas Clark reverse. Why magnesium and anti- mony? There are a few good reasons, first of which are their different densities which allows for stratification. Also, both elements display good electrochemical properties. But most import, both are relatively abundant and inex- pensive elements compared to other elements that have been tried. That keeps the cost of the batteries low. They have achieved up 69% energy efficiency with this setup. The team isn't the first to research liquid-battery sys- tems, but Dr. Sadoway says he and his team are the first to produce a working storage system in this way. Over the past few years, they have scaled up their experiment from about 4 cm in diameter to a 15 cm prototype with 200 times more storage capacity than their original version. Currently, they are focusing their efforts on improving the insulation and heating of the containers that hold the mol- ten materials to reduce the operating temperature and cut energy costs. According to Sadoway, if they can com- mercialize the technology, " could be a game-chang- er". 1) True or false: Antimony is less dense than magne- sium. 2) Magnesium chloride is an example of a(n) a) metal  b) salt c) electro- lyte d) both b and c 3) True or false: an ion is an atom or molecule that has gained or lost electrons. 4) Which of the following is NOT a good reason for using magnesium and anti- mony in industrial-scale bat- teries? a) different densi- ties b) high melting points c) electrochemical properties d) low cost 5) Discharging a liquid metal battery is like running a in reverse. A Better Battery One of the cutting-edge areas of study in chemistry today is materials chemistry for battery development. Researchers at Massachusetts Institute of Technology have developed a new type of bat- tery that could provide affordable, large-scale energy storage. Current batteries are unable to meet the low-cost, long-lifespan demands for supplementing our electrical power grid. This new type of battery would make it eco- nomical for utility companies to integrate wind and solar power with more traditional sources because they could store the electricity from these intermittent sources. Led by Materials Chemistry Professor Dr. Donald Sadoway, the MIT team has developed a liquid- metal based battery made from antimony, magnesium, and a mixture of magnesium- chloride and other salts. Heated to more than 700 C, these materials melt; and because they have variable densities, they settle into three distinct layers. The top (negative) magnesium layer and the bottom (positive) antimony layer form the elec- trodes of the battery, and the middle molten salt layer is the electrolyte. An electrolyte is a medium through which charged particles flow as the battery is charged or dis- charged. As the battery discharges, the magnesium atoms ionize, losing two electrons to the external circuit, and travel through the electrolyte to the positive electrode where they pick up two electrons and change back to ordinary mag- nesium, forming an alloy with antimony. Charging the battery runs the process in reverse, driving magnesium out of the alloy and back across the electrolyte to the negative electrode. While most batteries do not work well at high tem- peratures, this system needs high temperatures to run. Dr. Sadoway's was inspired by his earlier work on the elec- trochemistry of industrial aluminum smelting. Sadoway says his new battery process is like running a smelter in Right: Red Rock All conference Answers page2 pick Jake Comnick (left), and Copyright (C) 2012 Weekly Taylor Lindaman Honorable men- Science Quiz All rights tion. reserved.