Zaman International School Magazine Issue 98

M a g a z i n e

Hi g h S

c h o o l

Volume 12 I

ssue

98 Dec

2014

International Examinations

Cambridge International School

COUNCIL of

SCHOOLSINTERNATIONAL

LICENSED BYMINISTRY OF EDUCATION

Since 1997

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us!

HIGH SCHOOL CAMPUSAddress: No: 2843, St 3, Sangkat Tonle Basack, Khan Chamkar Morn, Phnom Penh, CambodiaTel: (855) 23 21 40 40 Mobile: (855) 12 44 77 44 Post Box: 2508 E-mail: [email protected] Website: www.zamanisc.com

PRIMARY CAMPUSNo 39, Street 315, Boeng Kok1,Toul KorkPhnom Penh, CambodiaTel: (855) 23 88 40 40HP: (855) 12 44 66 44Post Box: 2508E-mail: [email protected]: www.zamanprimary.com

NURSERY & KINDERGARTEN CAMPUSNo 66, Street 317, Boeng Kok1,Toul KorkPhnom Penh, CambodiaTel: (855) 23 93 55 55Mobile: (855) 12 44 66 44Post Box: 2508E-mail: [email protected]: www.zamankindergarten.com

Countdown to theLargest Celebration of STEM Festival!

The Zaman’s STEM Community is comingtogether...The Zaman’s STEM Community is comingtogether...

ZAM

AN Int’l School STEM Festiv

al

SINCE 1997

EXPO Dates:

www.zamanisc.com

April 24 &25, 2015

www.stemcambodia.com

“Teach time for science”

CONTENTSmart StudentParent – Teacher ConferenceHow Discipline System Works in Our School ?The Amazing Bridge Observation TripVisiting Koch Pich BridgeTeachers’ DayTarget NumberAnnual Intra-School Mathematical Activities Game 24CultureCampingDo You Know Bocce ?How to Make a Homemade Thermometer ?Kompong Som TripCambridge A Level Mean For University AdmissionsFinding a Perfect Shape for Bee HiveRobotsMath DepartmentWhat is Mole Day ?Chemistry

46810111214151618212225263034363840




Countdown to theLargest Celebration of STEM Festival!

The Zaman’s STEM Community is comingtogether...The Zaman’s STEM Community is comingtogether...

ZAM

AN Int’l School STEM Festiv

al

SINCE 1997

EXPO Dates:

www.zamanisc.com

April 24 &25, 2015

www.stemcambodia.com

“Teach time for science”

Zaman International School - High School Magazine

Page 4

Seuchhav Ea

Smart Student

When you are attending as one of the �nalists in a national competition like the Outstand-ing Student Competition, you will de�nitely get the mixed feeling of joy and nervousness. Receiving many sheets of paper from the physics teacher, Mr. Rithy Koy, and some help from Mr. Mustafa Ozgur in Newton's law, thermodynamic's principles, optics, electricity, etc are lessons and problems to solve and review again and again to be ready for the National Outstanding Student Competition that is held on the 1st of April 2014 in Kompong Som prov-ince. It was a tough examination which took 3 hours for physics(1st paper) on the �rst day, 2 hours in general knowledge on the second day and another 3 hours for physics(2nd paper). During the closing ceremony, I felt that I was not going to be in the top 10 outstanding students but luckily I got the 4th place which makes all those bad feelings become joyful. Honestly, it's worth all the time I've spent for this examination. I couldn't believe this examina-tion has created memorable days in my life. Further-more, I had the opportunity to meet new friends, juniors and seniors from both public and private schools in Phnom Penh, Cambodia.

In the end, I would like to express my thanks to my teachers, parents, and friends, who have always been there supporting me and taking me to the next level. Many thanks for encouraging me to give a try to everything. “If you don’t try, you will never be amazed how intelligent you are”. And now, I would also like to recommend all students to partici-pate in the national competition as well as interna-tional examinations or competitions. “As long as you do not give up, nothing is impossible”. Just give it a try and believe in yourself. You will never regret what you’ve done even if you don’t perform well in the examinations or competi-tions. You will at least gain new experiences from those, which can develop yourself to the next level in the future. “Never feel hopeless because no one is perfect”.


Page 5

Student’s MomI really expected some great results from my son and he did it that makes me feel proud of being his mom. In the future I am planning to send him abroad and let him choose his major to study on but now I am very glad to see him at Zaman School with successful results. First of all, I would like to

thank Zaman school and all teachers and special thanks to Mr. Mustafa Ozgur for all his help. Also, I am very excited about my son’s exam result in the Cambodian Smart Students exam. Thanks to Zaman School Physics teachers Mr Mustafa Ozgur and Mr Koy Rithy who prepared him from the begin-ning to the end.


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PARENT-TEACHER CONFERENCE (PTC)

Parent - Teacher Conference

The �rst general conference was on October 11, 2014. There were two sessions. The morn-ing session was for grades 7, 8 and 9 parents and the afternoon session was for grades 10, 11 and 12 parents. In total, 153 parents joined the conference. It was so e�ective and produc-tive for both parents and teachers.The second conference will be held in March. Thank you for being with us and caring for your child. We are looking forward to meeting with you again.

Parent-teacher conferences are an opportunity to establish better communica-tion between parents and teachers. Since children are di�erent at home and in school, parent-teacher conferences enable both the parent and the teacher to gain a better under-standing of the child, enabling them to be more e�ective in helping him or her.At Zaman International School we have planned two general parent-teacher confer-ences for 2014-2015 academic year. Beside these conferences, parents are welcome to arrange meetings with teachers at any time.

Yasemin Atasever


Page 7

“ Ignorance is the source of all social illness ” Buddha


Page 8

Sumeyra Yazici

An overview of possibleconsequences

How Discipline SystemWorks in Our School

One of the most pressing issues in education is discipline at school. School discipline and behavior management are issues that every school adminis-trator or teacher deals with on a daily basis.A school administrator's job in the realm of student discipline is much like the combination of judge and jury. A school administrator listens to all the evidence and makes the best possible decision that he or she can make in handing out a reasonable consequence. Unfortunately, there isn't always a clear cut answer to what may be the best way to handle a certain student discipline case. A good school administrator will weigh all the evidence and decide what they feel like is the best possible way to deter the student from making the same mistake twice. In our school, as you all know, we started to follow a new system called DPS (disciplinary point system). According to this system every student is given 100 points at the beginning of each semester. These points are deducted when the student breaks any school rules. The consequences for the following DPS points shown below:

what our expectations are and what will be the next step if student repeats the same action.

2. Parent ConferenceA parent conference can be used to include the parent in the process of disciplinary action. Involv-ing the parents lets both the student and parents know that poor choices will not be tolerated. It also allows a school administrator to present all evidence to the parents with the student present so that facts are not distorted. A parent conference will probably lead to further consequences for the student who has violated a policy.

3. DetentionDetention is a staple in many school discipline plans. The terri�c thing about detention is that it is variable in many aspects including the time of day, days spent serving, and tasks they are required to complete. Many schools use a combination of detention variables depending on the policy infrac-tion committed by the student. Possible detention times include before school detention, recess deten-tion, lunch detention, PE detention, and after school detention. Tasks could include but are not limited to writing sentences, picking up trash, work-ing on homework, reading a book, or simply sitting quietly for the required time. Detention is mostly used for smaller policy infractions, and the time spent in detention is often representative of what policy was violated.

4. In School SuspensionIn School Suspension (ISS) is sometimes referred to as In School Placement (ISP). This consequence is e�ective for mid-major infractions and/or for tempo-rarily removing a student from the general popula-tion who has become a disruption. ISP keeps a student in isolation on school premises during the school day allowing the student to complete all school work, but separated from all other students while monitored by school o�cials. The most e�ec

1. Verbal WarningThere are cases of student discipline where a simple verbal warning could be issued to rectify the prob-lem. This could be for minor violations of school policy particularly if it is a student who never or rarely gets into trouble. A verbal warning includes

“ Discipline is doing what needs to be done,

even whenyou don’t feel like it. ”


Page 9

tive ISP programs are the ones with the most struc-ture. ISP should not be a place that students enjoy being in. ISP can range from a short period of time (1-2 days) to a long period of time.

5. Out of School SuspensionOut-of-School suspension is a disciplinary conse-quence for more serious o�enses. Students who are given out-of-school suspension as a disciplinary consequence either serve a short term suspension (less than 10 days) or a long term suspension (more than 10 days).

6. ExpulsionExpulsion is used for extreme violations of school policy including the possession of weapons, assault on a school employee, drug possession and/or use, etc. Most expulsions last for a full calendar year, but the members of the discipline committee can make changes to the length of the expulsion on a case by case basis.

Now, let’s answer the question;

Why is it important to discipline children?

What many parents who are reluctant to discipline children may not understand is how damaging it can be for a child to lack boundaries. Without disci-pline, children will be de�cient in the following important life skills: They will lack self control. They will not respect their parents or other authority �gures. They will not know what is appropriate behavior. They will be willful, sel�sh, and generally unpleasant company. They will not have social skills that are import ant for making friends such as empathy, patience, and knowing how to share. They will be more likely to engage in negative behaviors that are harmful and even potentially dangerous for themselves as well as others. They will be unhappy.

“ DISCIPLINE IS THE BRIDGEBETWEEN GOALS AND ACCOMPLISHMENT. ”

Traits of Children Who Have Been Disci-plinedOn the other hand, children who have been given �rm but loving guidance have the following traits and abilities: They have more self control and are more self-su�cient. They are more responsible and enjoy "being good" and helping others at home, at school and in the world at large. They are more self-con�dent. They know their opinions and feelings will be heard, and that their parents love them even when they make mistakes. They know that they are accountable for their mistakes or misbehavior, and are more likely to make good choices because they want to, not because they fear punishment. They are pleasant to be around, and are more likely to have an easier time making friends.


Page 10

Pisour Sarat

The AmazingBridge Observation Trip

On an amazing day of 19th September 2014, Our English Teacher, Mr. Yerlan, told us that we were going to observe the tall and wonderful bridge connecting Diamond Island to the City. He also brief-ly explained that it was related to the topic that we were studying, bridges. No one in the class believed him until he took us downstairs. Everyone was excit-ed about the trip.

We talked about it all the way downstairs. I thought it was a really great thing that brightened up our day. We rode in two buses to the Island. On the bus we enjoyed the landscape. It was so fresh! When we arrived on the Island, we walked as a group to the side of the bridge, which is a safer place to observe the bridge, and also at a perfect angle. I could see that it was a Cable-Stayed bridge from the lessons we had learnt. I saw a really big, strong pylon hold-ing the huge cables connecting the top of the pylon to the bridge itself. What a structure! It was also decorated nicely with �owers and two lanes for cars to cross from either side. We took amazing pictures of that great time. Then, we headed back to school and we enjoyed the rest of the day. Thanks to Mr. Yerlan and the School for a perfect trip.


Page 11

Sovann Muni Visal Lay

VisitingKoh Pich BridgeOne of the best designed bridges in Phnom Penh, Cambodia is Koh Pich Bridge, which connects a small island to the capital city of Cambodia. This bridge has been in use since 2009. We went to Koh Pich Bridge with all our 8A students and our English teacher, Teach-er Yerlan, We went there on two buses. On the way, we talked to each other happily and had fun. When we arrived there, it was a bit hot, but this didn’t stop us from viewing that nice bridge. Our teacher really cared about us. He controlled us and made sure all of us were safe. When we approached the bridge, we started to discuss the structure of it, what type of bridge it is, and

why we need the bridge. We conducted a great and exciting discussion about the bridge. Afterwards, we took a lot of pictures with all the students in front of the bridge. Then we went to take a picture of the iconic banner, THE BRIDGE. No one ever thought the day would come when we would be taken to Koh Pich Bridge on a weekday, and everyone was very excited. A 45 minute trip went so fast. We were all happy, and have good memories, we also learnt more about bridg-es. It was the most amazing trip that we have ever had with our friends and teacher!


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Zuhal TatliyerAs a Zaman High School, we celebrated Teachers’ Day .

What Is The Importanceof Teachers

Teachers’ Day

Teachers are an extremely important facet of any society for a multitude of reasons. Teachers are the people who educate the youth of society who, in turn, become the leaders of the next generation. Teachers are the people who teach children and impart knowledge upon them in their most impres-sionable years, what kids learn from their teachers at a young age will most likely stay with them for the rest of their lives. So, teachers certainly have a signi�cant mark on the development of young children and even older children alike, as they are teaching them and helping them develop their knowledge so that they can go on in life and

be responsible and productive members of society. So our teachers are very important for us. We prepared this Teachers` Day program for our special teachers. Because they deserve the best. In the program some of our students sang a song or recited a poem. We would like to thank them for their beautiful performances. Let`s see some of their comments about program.

All this happened when we heard that there would be a Teachers` Day in our school and some of us should perform there. So , we decided to sing together our chosen song ‘ Come Home for Dinner’. We practiced a lot each day. When the day came, we really felt nervous but excited at the same time. As we got called on to perform, we walked to step on the stage and seeing all the teachers looking happy was worth it. When we �nished performing, the teachers clapped for us. We felt really thankful and grate-ful to take part in this.

KANIKA AND SOKHENG from 8 E


Page 13

It all began when our English teacher , T.Sheela asked us to recite a poem for Teachers` Day. We were both very excited for the opportu-nity. First, we worked on writing the poem. When we wrote it, we thought about all that teachers have taught us all these years. We thought that every teacher is amazing and they are our awesome heroes. When we �nally �nished writing the poem, we were very happy with it because it describes special abilities of a teacher. We only had a few days to memorize and practice reciting the poem so we rushed a bit with it. When the day came for us to recite the poem, we were very nervous. However, the time came for us to step on stage, so we had to pull our courage together. We felt very delight-ed to see the smiles on the teachers` faces. We were really honoured to be a part of this.

CHANBOPEAR AND CHAN VATHNA from 8E


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Abdulkasim AkhmedovTarget Number

Target NumberFor the �rst time in Zaman history, the math department organized a Target Number Contest for 11th & 12th grad-ers. The contest took place on the 30th and 31st of October in the conference hall. Four students, representing their class, competed against other groups in their category. During the contest, some inter-esting questions were asked to the audience and the students who answered for-the-audi-ence questions correctly received a tasty and cool drink as a reward. The winning teams of each category were also awarded a certi�cate of achievement during the �ag ceremony and enjoyed pizzas while the remaining groups received a certi�cate of partici-pation.

About the contest This game, Target Number, aims to improve students’ fast thinking and arithmetic skills. By using the basic arithmetic operations such as an addition, subtrac-tion, multiplication, division and brackets/parenthesis, students should obtain a target number. All numbers must be used and each number can be used only once. Results in a

GIRLS

Target Number 2014 CHAMPIONS

Grad E

12E

12E

12E

12E

ID No

9702

10908

11915

12903

Name & Surname

Channimol Touch

SoudavLim

Soksereysophal Dep

Tomimeas Saem

Target Number 2014 CHAMPIONS

BOYS

Target Number2014 CHAMPIONS

Grad E

11B

11B

11B

11B

ID No

10602

10601

10603

12801

Name & Surname

Syvibol Oun

Chan Visoth Poch

Sodarath Seng

Chung Leang Kuoch

range of 10 more or 10 less than the target number will also earn points for the contesters. math regarding their checkpoint exams (Grade 8), IGCSE exams (Grade 10 & 11) and A level exams (Grade 12).


Page 15

Nesibenur Celik

Annual Intra-School

Dear all, As most of you know the Zaman High School Mathematics Department organized their �rst annual and traditional activity called Game 24. The purpose of this competition was to measure students’ fast-calculation skills and give them an opportunity to demonstrate their mathematical skill of using four basic operations for given numbers to obtain 24. Four di�erent groups of students participated in this competition: Grade 7-8 Girls, Grade 7-8 Boys, Grade 9-10 Girls and Grade 9-10 Boys. All of these classes selected four of their classmates to represent their classes in the competition.Those selected students competed against other groups of students in their respective categories. Since there were 4 di�erent categories, four classes achieved championship status and received their Certi�cate of Achievement during the National Anthem Assembly and celebrated their victory by having pizza with team friends and teachers at the School Canteen.

ABOUT GAME 24 Game 24 is a popular mathematical game which is organized for students in many di�erent schools around the world. There are di�erent versions of this game. In the game we are organized at our school students were expected to make a mathematical expression using digits 1,2,3,...,9, four basic operations (+,-,×,÷) and paranthesis to get the number 24. Students were given 30 seconds to complete the task. Whoever got 24 with their

correct mathematical expression got 5 points. At the end of the competition, the group who had answered the most number of questions correctly achieved a championship title. During the contest, some interesting and tricky questions were asked to the audience and those students who answered the questions correctly were awarded. Below are the winners:

CATEGORIES

A

B

GRADES

7-8

9-10

WINNERS(BOYS)

8A-8B

10A

WINNERS(GIRLS)

8F

10F

Mathematical ActivitiesGame 24


Page 16

Oguz Coygun


Page 17

Oguz Coygun


Page 18

Chhun Heng Lim : For me, going camping is one of the joys of life because less people giving you problems. What I liked about going there was the night walk with my teachers and my friends.

Johnny Chung : It was a very interesting experi-ence for us. Our day there was full of fun activities and we actually survived a day without the compa-ny of wi�, but we were preserved. The most memo-rable moment was when we built our own camp �re and sang songs at night. Last, we are looking forward for another camping trip.

Kimsinawath Chou : This was my �rst experi-ence of camping. It is really fun over there. And we all loved it. I really enjoyed the view and the time there. I hope we can organize that kind of trip again.

Cihan Kazanci

Camping


Page 19

Doung Chet Sam Ang : It was my �rst experi-ence to go camping and it was awesome. We went hiking in the night, swimming and we made a bon�re as well. There was free wi� in my tent.

David Lim : Camping at Kirirom is very fun even though, Kirirom is very old now. We got to ride bikes, swim, canoe and eat barbeque chicken at the resort. In the night our classmates made our own camp �re. It was awesome. Camping at Kirirom was a very fun experience.

Chhounkim Chea : It was my �rst time camping at Kirirom. It was great; we got to go cycling around the resort. We also swam in the pool and in the evening, we ate barbeque together. In the night time, we went to the camp�re and some of them went to the camp�re just to dry themselves after swimming. After that, some of us were walking around the resort.

Leang Hong Lorn : It was a marvelous trip to do camping all together with all of my friends, and my teacher. We took a lot of photos at many places and we had a lot of fun, although it was tiring we had fun. The best part was the moment we started a camp�re and sang together around the �re. I hope that there will be another camping trip longer and more far from the city.

Sok Mongkul Sin : It was fun and exciting. I hope we will try somewhere else in the forest for the next trip, and hope to be longer trip than this.

Chan Visal Huot : It was fun and has a lot of mem-ories. The thing is great there. I hope it was longer than this.

Sivatha Bunthien : Thanks to Teacher Cihan who provided this activity. It was great, and we had a very good time with each other. The food that the chef provided was delicious. And I hope we will make this activity bigger and happier.

Seng Hour Hor : This trip it was really happy. When I go over there with my friends, I hope I can go again as soon as possible and I hope we can go further than this. Because I will get more experience and more activity when I leave my family.

Puthearo Po : This was a marvelous trip and it was really enjoyable. Special thanks to my homeroom teacher Mr.Cihan for arranging this special trip. It was really exciting and I hope to go anywhere else further than this.


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Ca

mp

ing

At N i g h t

11 A


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Ca

mp

ing

At N i g h t

11 A

Cihan Kazanci

Do You Know Bocce ? DO YOU KNOW BOCCE ?

Meaning& History: The term “bocce” comes from the Italian word boccia, which means “bowl.” It is played around Europe and also oversees areas that have received Italian immigrants, such as Australia, North America, and South America.

Equipment: A set of bocce balls consists of eight large bocce balls (half of which are of a di�erent color or pattern) and a smaller “object ball” called a pallino.

Playing Surface: The playing surface should be reasonably �at and level. It can be made of packed dirt, �ne gravel or short grass.

Players: The game is played into two teams–each team can have 1, 2, or 4 players.One player team – each player throws 4 ballsTwo player team – each player throws 2 ballsFour player team – each player throws 1 ball

Objective : The objective of the game is for one team to get their bocce balls as close as possible to the pallino.

How to play: At random, choose a player to throw the pallino. After the pallino is thrown, the same player will throw his �rst bocce ball. After the �rst player has thrown his �rst bocce ball, he is considered “inside” because his ball is closer to the pallino than any of the competitor’s balls. All other players are considered “outside.” Whenever a player is consid-ered “inside,” he will forfeit his turn throwing bocce balls. All “outside” players will take turns throwing their bocce balls until one of theirs gets closer to the pallino than the “inside” player.

Scoring: After all players have thrown their bocce balls, the player who is “inside” will be awarded points. One point will be awarded to this player for every ball that is closer to the pallino than his closest competitor’s ball. After the points are awarded, the frame is completed. Start a new frame by electing a new player to throw the pallino and to throw the �rst bocce ball. A game is won when a player reaches a set number of points. Play as many frames as necessary until a player reaches this point level.For more information check out the International Bocce Federation website: http://www.�boules.org/

Cihan KAZANCI


Page 22

Mustafa Ozgur

Part 1 - Building the Thermometer

Making a homemade thermometer can be a little time consuming, but the process is actually quite simple to complete and easy to understand. Build your thermometer and test it to make sure that it responds to temperature changes correctly. If it seems to work, you'll also need to calibrate it before you can use the thermometer to actually measure the temperature of an unknown solution or space.

Make your measuring solution. Fill a measuring cup halfway with water and halfway with rubbing alcohol. Drop four to eight drops of liquid food color-ing into the solution and mix gently to combine.

Pour the measuring solution into a clear bottle. Fill the bottle up to its neck by directly pouring the solution inside. Use a plastic dropper to slowly add more of the colored solution until the level of

that solution reaches the very top of the bottle.

Insert a straw into the

bottle and �x it in place.

Slide the straw into the

bottle, working carefully

to avoid spilling any solution. Leave at least 4 inches

(10 cm) of the straw sticking out from the top of the

bottle and do not allow the straw to touch the

bottom of the bottle. Fix it in place by molding clay

around the straw and the top of the bottle

Attach a white index card to the top of the straw.

Position the card directly

behind the straw and use

a piece of clear tape to

hold it in place.

Add measuring solution to the top of the straw.

Carefully add a few drops

of your colored solution

into the top of the straw.

When done, there should

be 2 inches (5 cm) of water

above the top of the

bottle inside the straw.

How to MakeA HomemadeThermometer ?


Page 23

Part 2 - Testing your thermometer

Part 3 - Calibrating the ThermometerPlace a drop of cooking oil in the top of the straw.

Use your dropper to

carefully add a single drop

of vegetable oil into the

straw. Only use one drop.

Examine your work. The device itself is done, but before you attempt to use your thermometer, you need to double-check your work to make sure that your new measuring tool will be as accurate as possible.

Place your thermometer in a bowl of ice water. Fill a small bowl with cold water and a little ice. Let the water get as cold as possible, then carefully sit your thermometer inside the bowl. Make sure that you can see the liquid

Hold a commercial thermometer next to yours. Place your thermometer in a room temperature location and allow the solution to settle to its original level in the straw. Hold a commercial alcohol thermometer next to the

straw, matching the level of your thermometer solution to the level of the solution in the straw.

Mark the temperature. With a �ne point perma-nent marker, mark a line on your index card, direct-ly next to the top of your solution in the straw. Label it with the current

temperature, as measured by your commercial thermometer

Repeat in areas of di�ering temperatures. Return the thermometer to your testing areas. Allow the solution level to rise or fall accordingly in each location, and once it does, hold the commercial thermometer next to it. Mark and label each

new temperature on your homemade thermometer

Use your calibrated thermometer to �nd an unknown temperature. Once you have a decent range of temperatures marked on your thermom-eter, take your instrument to a warm or cold location and set it down. Wait for

the solution level to rise or fall, and when it stops, look at the calibration marks on your straw. Use these previous measurements to determine the temperature of the area in which your thermometer presently sits.

Place your thermometer in a bowl of hot water. Get hot tap water or heat water on the stove until it begins to steam, but not the boil. Carefully lower the thermometer into the hot water and watch the level of the liquid in the

straw.

Test the thermometer in other areas. Check the thermometer in various places with di�erent temperatures. Look at how much the level rises in warm spots and how it drops in cold spots.


Page 24

It was a very great time doing the project! Even though we do not have a professional camera we tried our best we really enjoyed doing this project. We learnt a lot of things about expan-sion of liquids and working principles of thermometers. We would like to thank to our Physics Teacher Mustafa Ozgur for teaching us daily life physics.

Penghout Taing Sonty Sun Seuchhav Ea

T.H.Four Thermometer has many advantages on in daily life. It’s always a great idea to learn how make it from scratch or even better, make it yourself. Due to the task that was given to us, we had to �lm the process of making our own thermometer on camera. During the �lming process we felt really excited yet exhaust-ed. Thanks to the potato chips, we could keep up till late afternoon. It’s a do-it-yourself project which helps us understand more about the equipment. With all of the new things that we learnt from the project, it de�nitely, paid o� all of our hard work.

Geechhor Huot

Geechhor Huot

Chhenglun Pen

Chhenglun Pen

Kimhuong Ea

Kimhuong Ea

Rachny Toen

Rachny Toen


Page 25

Kompong Som

10-C was an unforgettable journey. We had excite-ment and joy along the trip even though it takes 6 hours to arrive to kompongsom. After we arrived, our teachers took us to Golden Sand Hotel. Because of the driver, we arrive late to kompongsom. Early the next morning we planned on going to Koh Rong Salem Island. During the way, we stopped for �shing and diving. We caught about 10 �sh. The underwater diving was exceptional because the landscape was just amazing and the tropical under-sea view was just breathtaking. When we arrived at the Island we got to get some rest, because it took more than two hours. We played volleyball, rugby and football. After we had lunch and we headed back to the deck where we came from. On the way

back , everyone slept except the sailor, the trip took all of our energy, but it was our best day in Kom-pongsom. The same day at night time our teachers took us out for dinner near the beach. We all walked to the restaurant it wasn’t really far. The last day at Kompongsom, we all decided to rent Buggy cars. The tour guide took us around the city We drove it up and down hills, over the mountain and on the rode through the villages. After an hour of driving, we went to have lunch at a restaurant. In the afternoon we arrived safety and everyone was really tired. This trip will be forever stuck in our memories and we will never forget this amazing journey we had together.


Page 26

Muhtor Adashev

Cambridge A Level:

What They Mean For University Admissions

Cambridge A level: What They Mean For University Admissions Muhtor Adashev, Vice Principal, Academic A�airs

As you may already know, Zaman Interna-tional School is a Cambridge International School and o�ers Cambridge International Examinations on campus. A frequent question I come across is what IGCSEs or A level stand for. Grade 12 High School Diploma is recognised anywhere in the world. However, internationally recognized quali�cations for secondary educa-tion make your pathway to university much easier than you can imagine.Every one of us would like to study overseas. At Zaman, we are looking for di�erent ways to make this process easy and e�cient.Below, I have compiled a few examples of what Cambridge A level may mean for certain universi-ties. These are just a few examples I have found on the university websites:

UK University of CambridgeCambridge Admissions O�ce, Fitzwilliam House 32, Trumpington Street, Cambridge CB2 1QY, UKCambridge is one of the best universities in the world, o�ering undergraduate degree courses (also called Triposes at Cambridge) in the arts, social scienc-es, sciences, engineering and medical sciences.

Entrance requirements for international students If you wish to apply for an undergraduate place at Cambridge, you need to be in the top one or two

per cent of your year group, and doing very well in the subject area you'd like to study.A Levels, the International Baccalaureate (IB) or equivalent quali�cations covering three or four subjects in depth are the usual preparation for undergraduate study here. Whatever system you’re being educated in, we require top grades in the highest level quali�cations available for school/col-lege students, and assess students not only on their achievements in these quali�cations, but also on their ability and readiness to join in discussion of their subject. Typical o�er levels for a range of quali�cations can be found in the main Entrance requirements section.

USA Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, MAThe mission of MIT is to advance knowledge and educate students in science, technology and other areas of scholarship that will best serve the nation and the world in the 21st century — whether the focus is cancer, energy, economics or literature.

MIT Credit for Previous Study Many students interested in MIT do college-level study while in high school. Some of this study is eligible for MIT credit and/or place-ment, depending on the setting and your achieve-ment as measured by test scores or grades.MIT grants credit for previous study in the following settings: College Board Advanced Placement (AP)

Examinations International examinations Transfer credit for study at another college or

university


Page 27

College Board Advanced Placement (AP) Examinations MIT grants credit for a score of 5 on some College Board Advanced Placement (AP) exams (or 4 on the Calculus BC exam). It does not grant credit for secondary school courses teaching AP curricula, or partial credit for lower scores. If you take an AP exam more than once, only your higher score will be counted. Details of current policy on credit for various AP exams appear on the Class of 2018 website. These policies are reviewed for each entering class and may change by the time you apply to MIT. The College Board reports scores electronically to MIT. You may designate MIT as a recipient (code 3514) when you register for your AP exams, or order a report later from the College Board. MIT will not accept scores from paper reports sent to you, or from your high school.

International Examinations MIT has established policies on credit for high scores in some international examinations. Details of current policy on credit for international exams, including A-Levels Cambridge Pre-U International Baccalaureate French Baccaluréat Abiturappear on the Class of 2018 website. These policies are reviewed for each entering class and may change by the time you apply to MIT.

Cornell University, Ithaca, New York, 14850 Cornell is a privately endowed research university and a partner of the State University of New York. As the federal land-grant institution in New York State, we have a responsibility—unique within the Ivy League—to make contributions in all �elds of knowledge in a manner that prioritizes public engagement to help improve the quality of life in our state, the nation, the world.

College Board (CEEB) Advanced Place-ment Program Examinations Summary of Credit and Placement: Many students who come to Cornell have taken advantage of the College Board Advanced Placement (AP) program in their secondary schools.

Advanced Placement and Credit for Inter-national Credentials: Following are the policies currently in e�ect for GCE “A” Level Examinations, International Bacca-laureate Higher-Level Examinations, and French Baccalauréat Examinations.

General Certi�cate of Education (GCE) Advanced (“A”) Level Examinations are awarded advanced standing and credit. Students must present the original or a certi�ed copy of their examination certi�cate to receive credit.

The State University of New York at Geneseo SUNY Geneseo • 1 College Circle • Geneseo, NY 14454

Located in the historic village of Geneseo in the upstate Finger Lakes region, the State University of New York at Geneseo is a premier public liberal arts college with a rich tradition of academic excellence. We are dedicated to developing socially responsi-ble citizens with skills and values for a productive life.

Advanced Placement Exams SUNY Geneseo o�ers academic credit to students with scores of 3, 4, or 5 on Advanced Place-ment Exams. Click here to see exactly how your AP exam scores transfer to SUNY Geneseo for course credit.

International Baccalaureate SUNY Geneseo o�ers academic credit to students who complete an IB Diploma program and have satis�sfactory exam results. Click here for chart.


Page 28

Advanced Level Exams SUNY Geneseo o�ers academic credit to students with satisfactory A-level exam results. Typically students with exam results of "C" or better may receive 3 semester hours for each subsidiary A level exam and/or 6 semester hours for each full A-level exam.

CanadaWilfrid Laurier University, 73 George Street, Brantford, Ontario, N3T 2Y3, CanadaWilfrid Laurier University recognizes that intellectu-al inquiry, critical re�ection and scholarly integrity are the cornerstones of all universities including our exceptional institution.Admission Requirements for IB, US, AP & GCE Students:I decided to include only the British system quali�-cations as we do the Cambridge International A levels.The General Certi�cate of Education (GCE) or equiva-lent, including 3 O-level (IGCSEs go instead of O-level here) plus 2 A-level subjects, are required for admis-sion. Some programs may require additional A-level courses. Two AS-level courses may be substituted for 1

A-level course, except where a speci�c A-level course is required. A minimum average of B is required for all honours programs. Transfer credit will be considered for A-level courses with a minimum �nal grade of B. Cambridge Pre-U minimum overall grade of Merit 2 with minimum of Merit 3 in required courses.

SingaporeNational University of Singapore, Univer-sity Town 2 College Avenue West, #01-03 (Stephen Riady Centre), Singapore 138607As a world-class university, NUS o�ers you an excit-ing curriculum combining breadth and depth with a distinct global and Asian perspective, the freedom to explore across discipline and a plethora of extra-curricular and overseas study opportunities. We believe that active immersion in such a rich intellectual environment helps nurture students to become thinking individuals with questioning minds.

'A' Level (AQA, Cambridge, Edexcel, London, OCR)

Requirement Applicants who receive actual results byapplication closing date

Applicants who receive actual resultsafter application closing date

Minimumto apply

A good pass in at least 3 ‘Advanced’ Levelsubjects is required for candidates to submit an application. Many applicantssubmit good passes for 4 or more ‘Advanced’ Level subjects for our consideration.

Expected to have a good pass in at least 3 ‘Advanced’ Level subjects by August 2015is required for candidates to submit anapplication

SAT & SATSubject Tests

Not required Required

EnglishRequirement

Not required Not required


Page 29

Thailand Stamford International University, ThailandBangkok Campus, 16, Motorway Road - Km2, Prawet, Bangkok 10250 Thailand.Stamford International University is rare among traditional Asian universities for encouraging critical and creative thinking and in its use of varying methodologies in the classrooms, which makes the classes truly student-centered and learn-ing-centered.Admission Requirement:High School Completion Certi�cate and o�cial transcripts: IGCSE with no less than “C” in 5 (�ve) subjects and “A” level with at least 2-3 subjects.

Australia Monash University, Building A, Ground Floor 900 Dandenong Road Caul�eld East, Australia 3145Named after engineer, military leader and public administrator Sir John Monash, Monash University was established by an Act of Parliament in 1958. At Monash, the desire to make a di�erence informs everything we do.But we go beyond good intentions. We make an impact, both locally and internationally. We are a global university with a presence on four conti-nents. And our plans for the future are ambitious.The methods for calculating entry scores for our undergraduate courses are based on a range of international senior secondary school, pre-universi-ty and foundation year quali�cations.The following is a good example for how the Austra-lian Universities evaluate the A level results:

A-level GCE (Monash) Total score of a maximum of 3 A Level subjects

taken in one academic year*. Two AS level subjects can be counted in place

of one A level subject, provided that the subject has not been taken at A level, and there is at least one A level subject included in the calculation.

AS Level results cannot be used to replace a poor performance in an A Level subject.

Score A Level grades as follows: A*(a*) = 5, A(a) = 5, B(b) = 4, C(c) = 3, D(d) = 2, E(e) = 1, U = 0.

Score AS Level grades as follows: a(a) =2.5, b(b) =2, c(c) =1.5, d(d) =1, e(e) =0.5, U = 0. N (Narrow failure) & U (Unclassi�ed) not to be included in the calculation. A maximum of 1 bonus point is o�ered when achieving A* in an A Level Subject. One academic year may include more than one sitting, for example, June 2010 and January 2011 is acceptable but June 2010 and June 2011 is outside one academic year and is not acceptable.

The University of Western Australia The University of Western Australia (UWA) is one of Australia's leading universities and has an international reputation for excellence in teaching, learning and research. The University of Western Australia (UWA) was established in 1911 as the State's �rst university. A dynamic and progressive university, UWA is a member of the prestigious Group of Eight partnership of leading Australian universities and o�ers a diverse range of courses.The General Certi�cate of Education Advanced Level (GCE A-Levels) is a widely-recognised academ-ic quali�cation conferred in over 125 countries.The University of Western Australia welcomes appli-cations from students who have completed the GCE A-Levels program. To be admitted to the University, you must satisfy the University's English language competence requirement by satisfactory performance in one of the English subjects detailed in the table below; achieve a su�cient number of GCE A-Level points to be o�ered a place; and satisfy any prerequisite subject requirements for your chosen course and major.

For Minimum entry scores, please visit the universi-ty website, http://www.studyat.uwa.edu.au/undergraduate/re-quirements/school-quals/gce-a-levels


Page 30

Abdulkasim Akhmedov

Finding a PerfectShape for Bee Hive

1

2

Dear Students, As a math teacher, I would like to give you some brief information about tessellation, its relation with beehives and the mystery behind choosing hexagons for tessellating their hives

Here, without going into too much detail, we will take a geometrical approach to tessellation made by bees to build their hives. Have you ever wondered why bee hives are formed in hexagonal shapes? What is the reason behind this beautiful art? We will start working on this with triangles and end up with decagons (ten-sided regular polygon). At the end, we will be convinced that, among those 2D �at shapes, the most perfect and suitable shape for bees to make their hives is a hexagon, six-sided regular �at �gure. Assume that we are given a piece of wire which is 36 cm long. Using this, we can make a triangle, square, regular pentagon, regular hexagon, regular hepta-gon, regular octagon and regular nonagon. Actual-ly, with this piece of wire, we can make n-sided polygon where n is a whole number (n: 0, 1, 2, 3, …). In this case, the perimeter of each newly-formed new �at shape remains unchanged but of di�erent areas. As we form di�erent shapes using this piece of wire, we will see that each shape will have a di�er-ent area. In the end, you will admit that the perfect shape to tessellate a surface where it has minimum

length but produces a maximum area is a regular HEXAGON. Let’s prove it by demonstrating the following examples:Proof:

Triangles: Area Of A Triangle With A Perimeter Of 36 cm.

Squares: Area Of A Square With A Perimeter Of 36

Tessellation is covering an amount of surface with geomet-ric flat shapes without leaving any gap between them. 12 cm

600

12 cm

12 cm

cm.

9 cm

9 cm9 cm

9 cm

= x 12 x 12 600 = 62.35 cm212

= 9 x 9 = 81 cm2


Page 31

3 Regular Pentagons

5 Area of a regular heptagon with the perimeter of 36 cm.

4 Area of a regular hexagon with the perimeter of 36 cm.

600

6 cm6 cm

6 cm 6 cm

6 cm6 cm

x

7.2 cm7.2 cm

7.2 cm7.2 cm

7.2 cm

720 x

360/736/736/7

36/736/7

36/7

36/736/7

x

- 2 X X+ 720

7.22 = 2 ( 1 - 720 )7.22 = 2

2

2

12

7.22 = x2 + x2 - 2 X x X x X cos720

7.22 = 2x2 - 2x2 X cos720

7.22 = 2x2 (1 - cos720 ) x = 6.12 cmArea = X 6.12 X 6.12 X sin 720

= 17.81 cm2

Total Area = 17.81 X 5 x = 89 cm2


Page 32

ConclusionWhat we did above requires a lot of mathematical knowledge, but honeybees do this without getting any training or learning math. The question comes to our minds: How do the honey bees make such a perfect tessellation? Who is their math teacher?

Abdulkasim Akhmedov

6 Area of a regular octagon with the perimeter of 36 cm. 7 Area of a Regular Nonagon with the

perimeter of 36 cm:

450

4.54.5

4.5 4.5

4.5 4.5

4.5 4.5

x

400

x4 cm

4 cm4 cm

4 cm

4 cm4 cm

4 cm 4 cm

4 cm

ZAMAN

2015Language AndCultural Festival

DATE: 31st January 2015VENUE: CHENLA THEATER

Address: No: 2843, St 3, Sangkat Tonle Basack, Khan Chamkar Morn, Phnom Penh, CambodiaTel: (855) 23 21 40 40

ZAMAN INTERNATIONAL SCHOOLFor more detail information please contact:

Mobile: (855) 12 44 77 44 E-mail: [email protected] Website: www.zamanisc.com Since 1997

Cultural ExhibitionsInternational Students Dance ShowApsara and Khmer Signing ShowInternational Foods

ZAMAN

2015Language AndCultural Festival

DATE: 31st January 2015VENUE: CHENLA THEATER

Address: No: 2843, St 3, Sangkat Tonle Basack, Khan Chamkar Morn, Phnom Penh, CambodiaTel: (855) 23 21 40 40

ZAMAN INTERNATIONAL SCHOOLFor more detail information please contact:

Mobile: (855) 12 44 77 44 E-mail: [email protected] Website: www.zamanisc.com Since 1997

Cultural ExhibitionsInternational Students Dance ShowApsara and Khmer Signing ShowInternational Foods


Page 34

DORMITORYZAMAN INTERNATIONAL SCHOOL

INTERNATIONAL SCHOOL

សកម្មពេេ៉ងសិកេកែន្លងេយើងរួមន៖សកម្មពេេ៉ងសិកេកែន្លងេយើងរួមន៖

កីល់ត់Football

កីយេប៉ងប៉ុងTable tennis

កីល់ទះVoleyball

កីជិះកង់Biking

េលងេហ្គមPlaystation

កីែហលទឹកSwimming

េ៉ងនេសៀវេReading hours

រេបើស់អុិនេធើែណតInternet cafe

េមើលពយន្ដCinema

េ៉ងសិកStudy hours

បុកប៊ី៉Billiards

រចំអិនហារCooking

www.zamanisc.com

អេន្ដសិកដ្ឋានរបស់

អន្ដរជាតិហ៉ន់

Tel:+855 (23) 21 40 40 Fax:+855 (23) 21 00 36 Mobile:+855 (12) 44 77 44 E-mail : [email protected]: No: 2843, St: 3, Sangkat Tonle BasakKhan Chamkar Morn, Phnom Penh, Cambodia

OUR FACILITIES :OUR FACILITIES :

R

Timur Celik

Robotics is the branch of mechanical engineer-ing, electrical engineering and computer science that deals with the design, construction, operation, and application of robots as well as computer systems for their control, sensory feedback, and information processing.

Nowadays, robotic systems have an undeniable importance in our daily lives. Robotics is a rapidly growing �eld, as technological advances continue,

research, design, and building new robots serve various practical purposes domestically, commer-cially, and militarily. Many robots do jobs that are hazardous to people such as defusing bombs, mines and exploring shipwrecks. As a computer teacher of ZIS, I aim to empower students to be involved in the Robotics Club. I believe that creativi-ty in Zaman High-School’s students can be cultivat-ed by encouraging them to use their hands more, by using their creativity and critical thinking.

Robotics is a complex discipline. A real robot does face potential for errors due to a number of reasons, including: incorrect parameter (for exam-ple: mass, direction, distance) values, frictional forces and terrain estimations, play at the link joints, calibration errors in sensors, errors in the values read from the sensors. The resulting errors in robot actions need corrections; preferably, without any explicit human help. These corrections cannot be computed by using the laws of physics and must be generated as they are detected, by the robot as it executes the operation to enhance their ability to avoid immobilization, accommodate degraded performance and even self-recover. The needed correction di�ers from one repetition of an opera-tion to the next due to unpredictability of many of the in�uences.

Most importantly, Robotics Club is meant to provide students with background to update their knowledge of technology. As a Robotics Club instructor, my struggle is to teach students how to build a robot and how to program it. My purpose is to provide a safe and fun environment for ZIS students to pursue their interest in robotics.

DORMITORYZAMAN INTERNATIONAL SCHOOL


សកម្មពេេ៉ងសិកេកែន្លងេយើងរួមន៖សកម្មពេេ៉ងសិកេកែន្លងេយើងរួមន៖

កីល់ត់Football

កីយេប៉ងប៉ុងTable tennis

កីល់ទះVoleyball

កីជិះកង់Biking

េលងេហ្គមPlaystation

កីែហលទឹកSwimming

េ៉ងនេសៀវេReading hours

រេបើស់អុិនេធើែណតInternet cafe

េមើលពយន្ដCinema

េ៉ងសិកStudy hours

បុកប៊ី៉Billiards

រចំអិនហារCooking

www.zamanisc.com

អេន្ដសិកដ្ឋានរបស់

អន្ដរជាតិហ៉ន់

Tel:+855 (23) 21 40 40 Fax:+855 (23) 21 00 36 Mobile:+855 (12) 44 77 44 E-mail : [email protected]: No: 2843, St: 3, Sangkat Tonle BasakKhan Chamkar Morn, Phnom Penh, Cambodia

OUR FACILITIES :OUR FACILITIES :


Page 36

Dear Teachers, Parents, Students and Sta�, I am very glad to have the chance to introduce our math department, evaluation system, and annual activities, which will be taking place during this new academic year.

Abdulkasim AkhmedovMath Department Our mission Our mission is to give students a deep mathe-matical knowledge, reinforce their problem-solving and thinking skills, familiarize them with daily-life problems which require solutions from mathemati-cians and prepare them for the government and university exams. Beside this, our students will be taking additional courses in math regarding their checkpoint exams (Grade 8), IGCSE exams (Grade 10 & 11) and A level exams (Grade 12).

Students who are good in math and geometry go on to colleges or universities at much higher rates than those who are not. The compulsory subjects in A level exams are English and Math Most colleges and universities require three to four years of high school Math and Science for admission. The workers in automobile plants must use advanced mathematical formulas to wire a car’s electrical circuits. Strong math skills are needed in order to understand graphs, charts, and opinion polls in a newspaper, for calculating house and car payments, and for calculating tuition costs.

I. Annual and Traditional Mathematical Activities:

Name of Activity Expected dates to be held Grades

1

2

3

4

5

6

7

Game 24

Target Number

Checkers Competition

Line Up Four Contest

Annual Puzzle Contest

ZAMAN Math Olympiad (ZMO)

Chess Tournament

7-8-9-10 October 2014

30&31 October 2014

15-26 December 2014

9-20 March 2015

04 April 2015

30 May 2015

June 2015

7-8-9-10

11-12

All Grades

All Grades

Open to all students in Cambodia


All grades

Why is Math Important for Our Students?


Page 37

Dear Teachers, Parents, Students and Sta�, I am very glad to have the chance to introduce our math department, evaluation system, and annual activities, which will be taking place during this new academic year.

Abdulkasim AkhmedovMath Department Our mission Our mission is to give students a deep mathe-matical knowledge, reinforce their problem-solving and thinking skills, familiarize them with daily-life problems which require solutions from mathemati-cians and prepare them for the government and university exams. Beside this, our students will be taking additional courses in math regarding their checkpoint exams (Grade 8), IGCSE exams (Grade 10 & 11) and A level exams (Grade 12).

Students who are good in math and geometry go on to colleges or universities at much higher rates than those who are not. The compulsory subjects in A level exams are English and Math Most colleges and universities require three to four years of high school Math and Science for admission. The workers in automobile plants must use advanced mathematical formulas to wire a car’s electrical circuits. Strong math skills are needed in order to understand graphs, charts, and opinion polls in a newspaper, for calculating house and car payments, and for calculating tuition costs.

I. Annual and Traditional Mathematical Activities:

Name of Activity Expected dates to be held Grades

1

2

3

4

5

6

7

Game 24

Target Number

Checkers Competition

Line Up Four Contest

Annual Puzzle Contest

ZAMAN Math Olympiad (ZMO)

Chess Tournament

7-8-9-10 October 2014

30&31 October 2014

15-26 December 2014

9-20 March 2015

04 April 2015

30 May 2015

June 2015

7-8-9-10

11-12

All Grades

All Grades



All grades

Why is Math Important for Our Students?

We will be organizing a number of educational trips throughout the year for High-School students. More details soon will be posted when they are con�rmed.

II. Evaluation System for Mathematics (For English Math)

III. Educational Trips RegardingMathematics

IV. Mathematics Teachers of 2014-15 Academic Year

No

1

2

3

4

5

6

7

8

9

10

11

Name & Surname

Mr. Abdulkasim Akhmedov

Mr. Mehmet Esen

Mrs. Sumeyra Sen

Ms. Nesibe Nur Celik

Mr.Haci Ibrahim Yalcin

Mr. Anne Kim

Mr. Chhay San

Mr. Sophea Hem

Mrs. Phalline Plong

Mrs. Tityarun Sim

Mrs. Chanthea Ham

Country

Kyrgyzstan

Turkey

Turkey

Turkey

Turkey

Cambodia

Cambodia

Cambodia

Cambodia

Cambodia

Cambodia

Teaching Grades

10A-E-F; 11&12 Int’l Students; IGCSE (G 10)

9A-B-E-F; 10B; A Level

11E-F; 12E-F; IGCSE (G 11)

8A-B-E-F; Checkpoint Course

10C; 11A-B; 12A-B

11 A-B-E-F

12 A-B-E-F

9 A-B-C-E-F

10 A-B-C-E-F

7 A-B-E-F; 8E

8 A-B-F

No Assessment Type Weight

1

2

3

4

5

Homework

Quiz

Notebook

Project

Exam

Total ==>

15%

15%

15%

15%

40%

100 %


Page 38

Mole Day Activities Whenever you choose to celebrate it, Mole Day is a great day to think about chemistry in gener-al and the mole in particular. Here are some Mole Day activities for you: Determine how much aluminum foil you would need to make a 0.5 mole aluminum sculpture (of a mole, if you like). Weigh out the foil and get creative. Write your own mole joke. Examples of mole jokes include: “Where did Avogadro stay on is vacation?”

A mole-tel. “What do chemists wear when it's cold?”

The-mole underwear. Determine how much water is in one mole of water. Can you drink that amount? Mole Day included a mole cake, balloons, amazing experiments, and confetti. Did you know that a one liter bottle of water contains 55.5 moles of water?

Has

an A

ksu

MOLEDAY

Chemistry in Life Page

What is Mole Day ?

What Is Mole Day? Avogadro's number is the number of parti-cles in a mole of a substance. Mole Day is an uno�-cial chemistry holiday celebrated on a date that relates to Avogadro's number, which is approximate-ly 6.02 x 1023. The purpose of Mole Day is to foster an interest in chemistry.

How Did Mole Day Get Started? Mole Day traces its origins to an article that appeared in The Science Teacher magazine in the early 1980s about a high school chemistry teacher's

reasons for celebrating the day. The idea for Mole Day took root. The National Mole Day Foundation was formed on May 15, 1991. The American Chemi-cal Society plans National Chemistry Week so that Mole Day falls within the week. Today Mole Day is celebrated around the world.

When Is Mole Day? In the US this is usually October 23rd between 6:02 am and 6:02 pm. (6:02 10/23). In the Cambodia that day is always a holiday which is why we celebrate it on October 22nd between 6:02 am and 6:02 pm.

Reasons for celebrating the day. The idea for Mole Day took root. The National Mole Day Foundation


Page 39

Mole Day Activities Whenever you choose to celebrate it, Mole Day is a great day to think about chemistry in gener-al and the mole in particular. Here are some Mole Day activities for you: Determine how much aluminum foil you would need to make a 0.5 mole aluminum sculpture (of a mole, if you like). Weigh out the foil and get creative. Write your own mole joke. Examples of mole jokes include: “Where did Avogadro stay on is vacation?”

A mole-tel. “What do chemists wear when it's cold?”

The-mole underwear. Determine how much water is in one mole of water. Can you drink that amount? Mole Day included a mole cake, balloons, amazing experiments, and confetti. Did you know that a one liter bottle of water contains 55.5 moles of water?

Has

an A

ksu

MOLEDAY

Chemistry in Life Page

What is Mole Day ?

What Is Mole Day? Avogadro's number is the number of parti-cles in a mole of a substance. Mole Day is an uno�-cial chemistry holiday celebrated on a date that relates to Avogadro's number, which is approximate-ly 6.02 x 1023. The purpose of Mole Day is to foster an interest in chemistry.

How Did Mole Day Get Started? Mole Day traces its origins to an article that appeared in The Science Teacher magazine in the early 1980s about a high school chemistry teacher's

reasons for celebrating the day. The idea for Mole Day took root. The National Mole Day Foundation was formed on May 15, 1991. The American Chemi-cal Society plans National Chemistry Week so that Mole Day falls within the week. Today Mole Day is celebrated around the world.

When Is Mole Day? In the US this is usually October 23rd between 6:02 am and 6:02 pm. (6:02 10/23). In the Cambodia that day is always a holiday which is why we celebrate it on October 22nd between 6:02 am and 6:02 pm.

Reasons for celebrating the day. The idea for Mole Day took root. The National Mole Day Foundation


Page 40

Yasemin Aksu

Chemistry

O n i o n s can't make you cry if the chemi-cals from t h e m n e v e r reach your eyes. Try

chilling onions before cutting them.

Answer: Unless you've avoided cooking, you've probably cut up an onion and experienced the burning and tearing you get from the vapors. When you cut an onion, you break cells, releasing their contents. Amino acid sulfoxides form sulfenic acids. Enzymes that were kept sepa-rate now are free to mix with the sulfenic acids to produce propan-ethiol S-oxide, a volatile sulfur compound that wafts upward toward your eyes. This gas reacts with the water in your tears to form sulfuric acid. The sulfuric acid burns, stimulating your eyes to release more tears to wash the irritant away.Cooking the onion inactivates the enzyme, so while the smell of cooked onions may be strong, it doesn't burn your eyes. Aside from wearing safety goggles

Can You Drink Too Much Water? You need water to hydrate, but too much pure water can upset your electrolyte balance.Answer: You've probably heard that it's important to 'drink plenty of �uids' or simply 'drink lots of water'. There are excellent reasons for drinking water, but have you ever wondered if it's possible to drink too much water. Here's what you need to know:

or running a fan, you can keep from crying by refrig-erating your onion before cutting it (slows reactions and changes the chemistry inside the onion) or by cutting the onion under water.The sulfur-containing compounds also leave a characteristic odor on your �ngers. You may be able to remove or reduce some of the smell by wiping your �ngers on a stainless steel odor eater.

Can You Really Drink Too Much Water?In a word, yes. Drinking too much water can lead to a condition known as water intoxication and to a related problem resulting from the dilution of sodium in the body, hyponatremia. Water intoxica-tion is most commonly seen in infants under six months of age and sometimes in athletes. A baby can get water intoxication as a result of drinking several bottles of water a day or from drinking

Why Do Onions Make You Cry?


Page 41

infant formula that has been diluted too much. Athletes can also su�er from water intoxication. Athletes sweat heavily, losing both water and electrolytes. Water intoxication and hyponatremia result when a dehydrated person drinks too much water without the accompanying electrolytes.

What Happens During Water Intoxication?When too much water enters the body's cells, the tissues swell with the excess �uid. Your cells main-tain a speci�c concentration gradient, so excess water outside the cells (the serum) draws sodium from within the cells out into the serum in an attempt to re-establish the necessary concentra-tion. As more water accumulates, the serum sodium concentration drops -- a condition known as hypo-natremia. The other way cells try to regain the electrolyte balance is for water outside the cells to

rush into the cells via osmosis. The movement of water across a semipermeable membrane from higher to lower concentration is called osmosis. Although electrolytes are more concentrated inside the cells than outside, the water outside the cells is 'more concentrated' or 'less dilute' since it contains fewer electrolytes. Both electrolytes and water move across the cell membrane in an e�ort to balance concentration. Theoretically, cells could swell to the point of bursting.From the cell's point of view, water intoxication produces the same e�ects as would result from drowning in fresh water. Electrolyte imbalance and tissue swelling can cause an irregular heartbeat, allow �uid to enter the lungs, and may cause �utter-ing eyelids. Swelling puts pressure on the brain and nerves, which can cause behaviors resembling alcohol intoxication. Swelling of brain tissues can cause seizures, coma and ultimately death unless water intake is restricted and a hypertonic saline (salt) solution is administered. If treatment is given before tissue swelling causes too much cellular damage, then a complete recovery can be expected within a few days.

It's Not How Much You Drink; It's How Fast You Drink It!The kidneys of a healthy adult can process �fteen liters of water a day! You are unlikely to su�er from water intoxication, even if you drink a lot of water, as long as you drink over time as opposed to in taking an enormous volume at one time. As a gener-al guideline, most adults need about three quarts of �uid each day. Much of that water comes from food, so 8-12 eight ounce glasses a day is a common recommended intake. You may need more water if the weather is very warm or very dry, if you are exercising, or if you are taking certain medications. The bottom line is this: it's possible to drink too much water, but unless you are running a marathon or an infant, water intoxication is a very uncommon condition.

WORD SEARCH

Sumo WrestlerThree men, an American, an English man and a sumo wrestler were going to commit suicide by jumping of the top of a building.The American jumped o� and shouted ''God save America !''The English man jumped o� and shouted ''God Save The Queen!'' The Sumo wrestler jumped o� and shouted ''God save the person who I land on!''

DECORATIONS COUNTDOWN STREAMERS HOLIDAY

NEW YEAR SINGING HORNS BALL DROP

CELEBRATION RESOLUTION MIDNIGHT SLEEP

HAPPY NEW YEAR

Be careful Next TimeA wife was making a breakfast of fried eggs for her husband.

Suddenly, her husband burst into the kitchen.

'Careful,' he said, 'CAREFUL! Put in some more butter!

Oh my GOD! You're cooking too many at once.

TOO MANY! Turn them! TURN THEM NOW!

We need more butter. Oh my GOD!

WHERE are we going to get MORE BUTTER?

They're going to STICK! Careful. CAREFUL! I said be CAREFUL!

You NEVER listen to me when you're cooking! Never!

Turn them! Hurry up! Are you CRAZY? Have you LOST your mind?

Don't forget to salt them. You know you always forget to salt them. Use the salt. USE THE SALT! THE SALT!'

The wife stared at him. 'What in the world is wrong with you? You think I don't know how to fry a couple of eggs?'

The husband calmly replied, 'I just wanted to show you what it feels like when I'm driving.'

1. Put your face close to the screen or printed stereogram. Try to look through the image, pretending it doesn't exist. 2. Then start to move back from the stereogram (or move stereogram away from you) very slowly. 4. Once you can keep looking through the stereogram, keep moving it (or your head) back and force very slowly. At some distance, when patterns overlap each other, you will notice that something strange is happening to the image. 5. Once you can see blurry 3D picture, keep looking at it this way. Don't force your eyes to focus yet, they will need some time to adjust.

How to View Stereograms

WORD SEARCH

Sumo WrestlerThree men, an American, an English man and a sumo wrestler were going to commit suicide by jumping of the top of a building.The American jumped o� and shouted ''God save America !''The English man jumped o� and shouted ''God Save The Queen!'' The Sumo wrestler jumped o� and shouted ''God save the person who I land on!''

DECORATIONS COUNTDOWN STREAMERS HOLIDAY

NEW YEAR SINGING HORNS BALL DROP

CELEBRATION RESOLUTION MIDNIGHT SLEEP

HAPPY NEW YEAR

Be careful Next TimeA wife was making a breakfast of fried eggs for her husband.

Suddenly, her husband burst into the kitchen.

'Careful,' he said, 'CAREFUL! Put in some more butter!

Oh my GOD! You're cooking too many at once.

TOO MANY! Turn them! TURN THEM NOW!

We need more butter. Oh my GOD!

WHERE are we going to get MORE BUTTER?

They're going to STICK! Careful. CAREFUL! I said be CAREFUL!

You NEVER listen to me when you're cooking! Never!

Turn them! Hurry up! Are you CRAZY? Have you LOST your mind?

Don't forget to salt them. You know you always forget to salt them. Use the salt. USE THE SALT! THE SALT!'

The wife stared at him. 'What in the world is wrong with you? You think I don't know how to fry a couple of eggs?'

The husband calmly replied, 'I just wanted to show you what it feels like when I'm driving.'

1. Put your face close to the screen or printed stereogram. Try to look through the image, pretending it doesn't exist. 2. Then start to move back from the stereogram (or move stereogram away from you) very slowly. 4. Once you can keep looking through the stereogram, keep moving it (or your head) back and force very slowly. At some distance, when patterns overlap each other, you will notice that something strange is happening to the image. 5. Once you can see blurry 3D picture, keep looking at it this way. Don't force your eyes to focus yet, they will need some time to adjust.

How to View Stereograms





As the holiday season approaches, we’d like to take this opportunityto thank you for your continued support.

May your holiday season and the new year be �lled with much joy, happiness and success.

Wishing you a Happy New Year !

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Zaman International School Magazine Issue 98