Add Math Project 2012 Sabah

Embed Size (px)

Citation preview

  • 7/31/2019 Add Math Project 2012 Sabah

    1/32

    1

    S.M.K LOHAN,RANAU,SABAH.ADDITIONAL MATHEMATICS

    WORK PROJECT

    (2012)

    NAME: MOHD.IRSYAD BIN HAMILIN

    CLASS: 5 AMBER

    TEACHER: MADAM HASNIAH SOIMAN

  • 7/31/2019 Add Math Project 2012 Sabah

    2/32

  • 7/31/2019 Add Math Project 2012 Sabah

    3/32

    3

    Acknowledgement

    In the name of Allah,the Most Gracious and the Most Merciful.

    Alhamdulillah,all praises to Allah for the strenghts and His

    blessing in completing this Add Math project.

    Special appreciation goes to my beloved parents,Hamilin

    Dahlan and Asmah Abdul Kadir for their endless love,prayers

    and encouragement.My deepest gratitude to my add math

    teacher,Madam Hasniah Soiman,for her supervision and

    constant support.Her invaluable help of constructive comments

    and suggestions throughout this project.Sincere thanks to all

    my friends who doing this project with me especially Jamilah

    Sariau,Khadijah Saipin,Asaraf Sahimun,Ramsinah Kasmeen and

    Elwani Jainin for their kindness and moral support during doing

    this Add Math project.Thanks for the friendship and memories.

    Last but not least to those who indirectly contributed in this

    research,your kindness means a lot to me. Thank you very

    much.

  • 7/31/2019 Add Math Project 2012 Sabah

    4/32

    4

    Objectives

    The aims of carrying out this project are:

    To apply and adapt a variety of problem-solving strategies to

    solve problems.

    To improve thinking skills.

    To develop mathematical knowledge through problem

    solving in a way that increases students interest and

    confidence.

    To use technology especially the ICT appropriately and

    Effectively

    To use language of mathematics to express mathematical

    ideas precisely

    To provide learning environment that stimulates and

    enhances effective learning

    To develop positive attitude towards mathematics.

  • 7/31/2019 Add Math Project 2012 Sabah

    5/32

    5

    History of Statistic

    By the 18th century, the term "statistics" designated the systematic collectionof demographic and economic data by states. In the early 19th century, themeaning of "statistics" broadened, then including the discipline concernedwith the collection, summary, and analysis of data. Today statistics is widelyemployed in government, business, and all the sciences. Electronic computershave expedited statistical computation, and have allowed statisticians todevelop "computer-intensive" methods. The term "mathematical statistics"designates the mathematical theories of probability and statistical inference,which are used in statistical practice. The relation between statistics and

    probability theory developed rather late, however. In the 19th century,statistics increasingly used probability theory, whose initial results werefound in the17th and18th centuries, particularly in the analysis of games ofchance(gambling). By 1800,astronomy used probability models and statisticaltheories, particularly the method of least squares, which was invented byLegendre and Gauss Early probability theory and statistics was systematizedand extended by Laplace; following Laplace, probability and statistics havebeen in continual development. In the19th century, social scientists usedstatistical reasoning and probability models to advance the new sciences ofexperimental psychology and sociology; physical scientists used statisticalreasoning and probability models to advance the new sciences ofthermodynamics and statistical mechanics. The development of statistic wasclosely associated with the development of inductive logic and the scientificmethod Statistics is not a field of mathematics but an autonomousmathematical science, like computer science or operations research. Unlikemathematics, statistics had its origins in public administration and maintainsa special concern with demography and economics. Being concerned with thescientific method and inductive logic, statistical theory has close associationwith the philosophy of science; with its emphasis on learning from data and

    making best predictions, statistics has great overlap with the decision scienceand microeconomics. With its concerns with data, statistics has overlap withinformation science and computer science.

  • 7/31/2019 Add Math Project 2012 Sabah

    6/32

    6

    Statistic Today

    During the 20th century, the creation of precise instruments for agriculturalresearch, public health concerns (epidemiology, biostatistics, etc.), industrialquality control, and economic and social purposes (unemployment rate,econometrics, etc.) necessitated substantial advances in statistical practices.Today the used of statistic has broadened far beyond its origin. Individualsand organizations use statistics to understand data and make informeddecisions throughout the natural and social sciences, medicines, business, andother area. Statistics are generally regarded not as the subfield of

    mathematics but rather as a distinct, allied, field. Many universities maintainseparate mathematics and statistic departments. Statistic is also taught indepartment as diverse as psychology , education and public health.

  • 7/31/2019 Add Math Project 2012 Sabah

    7/32

    7

    Part 1(a) Types of Packaged Drinks

    BRAND MANUFACTURER

    Yeos Chrysanthemum Tea Yeo Hiap Seng (M) Sdn.BhdDrinho Lychee Drink Lam Soon (M) Sd.Bhd

    Milo Nestle Nestle Products Sdn.Bhd

    Desa Fresh Milk Desa Cattle (Sabah) Sdn. Bhd

    Marigold Orange Malaysia Milk Ind (M) Sdn.Bhd

    b)

    Num Brand Price (RM) Location

    1 Yeos Chrysanthemum Tea RM1.30 Hap Seng Supermarket

    2 Drinho Lychee Drink RM1.30 Hap Seng Supermarket

    3 Milo Nestle RM1.50 Millimewa Superstore

    4 Desa Fresh Milk RM4.50 Desa Fresh Mart5 Marigold Orange RM1.20 Gmart Supermarket

  • 7/31/2019 Add Math Project 2012 Sabah

    8/32

    8

    Part 2

    (a)

    No. Students Name Yeos Marigold Nestle Drinho Desa1 Farrah Shaqienna Wasli

    2 Noor Azimah Yalin

    3 Nor Afrizah Cheok

    4 Fazzon Muani

    5 Canisus Justin

    6 Khairul Adha Aziz

    7 Eddly C. Subil

    8 Fadinah Dullah

    9 Jennythrise Tujin

    10 Saidatul Nadia Parimin

    11 Windralela Wakilin

    12 Ken Junior Gimik

    13 Ignatius Peter

    14 Erdy Ryner J

    15 Chandry Juani

    16 Asmie Mahadi

    17 Sazlina Petrus

    18 Ruslizan Suhaili

    19 Noretika Jusimin

  • 7/31/2019 Add Math Project 2012 Sabah

    9/32

    9

    20 Rosazlinah Labin

    21 Nur Syafieqah Moritim

    22 Marwanda Yudin

    23 Hasmimi Juanis

    24 Mikha Yebet

    25 Nina Farina Kasdi

    26 Khalid Hasanuddin

    27 Syafiq Iqmal Yahadin

    28 Nur Sobah Sujif

    29 Ramzieda Zaila Estrada

    30 Azni Bahari

    31 Mohd. Iqbal Ikhwan

    Haimin

    32 Hadwan Hafey Hamidi 33 Izzan Khalidah

    Muhamad

    34 Eliora Latri

    35 Sherly Jewinly

    36 Erra Priska Michael

    37 Veronicca Jimin

    38 Denna Lani

    39 Eanny Suin

  • 7/31/2019 Add Math Project 2012 Sabah

    10/32

    10

    40 Elsie Luther

    41 Erdy Bactiar

    42 Mohd . Aqmal Salleh

    43 Amirul Izzad Rosly

    44 Nor Amelina Salitson

    45 Jad Naeman Washif

    46 Jeo Octer Silvester

    47 Lionel Tambur

    48 Mohd Ikhwan Syafiq

    Camillus

    49 Siti Nurain Roslan

    50 Sofee Diana Bashir

    (b) (i)

    Tupes of Drinks Tally Frequency

    YeosChrysanthemum Tea

    IIII I 6

    Drinho Lychee Drink IIII IIII 9

    Milo Nestle IIII IIII 10

    Marigold Orange IIII IIII 9

    Desa Fresh Milk IIII IIII IIII I 16

  • 7/31/2019 Add Math Project 2012 Sabah

    11/32

    11

    (ii)

    (iii) Through the study of 50 students, Desa is a very popular drink with a total of 16 votesand was rated the highest among other drinks. Meanwhile, Nestle is the preferred beveragewith 10 votes, Marigold and Drinho is the third drink favorite by the students with same 10

    votes. Finally, YEO `S has received the least votes and is drinking less favorite by the

    students with 6 votes.

  • 7/31/2019 Add Math Project 2012 Sabah

    12/32

    12

    (c) (i)

    Type Of Brand Sugar Content

    Yeos Chrysanthemum Tea 23gDrinho Lychee Drink 18.5g

    Milo Nestle 7g

    Marigold Orange 11.0g

    Desa Fresh Milk 0g

    (ii)

    3

  • 7/31/2019 Add Math Project 2012 Sabah

    13/32

    13

    (iii) Effect of long time consumption of packaged drinks on our health.

    a) Tooth Decay: All soft drinks are acidic which corrodes the teeth by erodingits enamel. The high amount of sugar consumed through soft drinks lead tothe development of bacteria that attack the teeth thus aggravating dental

    problems. People who drink three or more glasses of aerated drinks (gaseousdrinks) daily have much higher chances of dental decay, fillings and teethloss. Therefore, soft drinks contain acid and sugar that corrode and destroythe teeth in one shot.

    b) Obesity: Soft drinks are mainly composed of filtered H2O, artificial additivesand refined sugar. Thus, they lack nutritional value and only add up caloriesthrough their refined sugar; therefore, they make you gain weight. But isshifting to "Diet Soft Drink" the solution? The fact is that diet soft drinkscontain aspartame (an artificial low-calorie sweetener). Although aspartamedoes not add up the calories it makes you feel hungrier and crave for food.The Food and Drug Administration (FDA) no longer allows foods containing

    aspartame to be labeled as "weight reduction product ". Now it insists tolabel these products simply as "Diet Drink" or "Diet Food ". Research alsoshows that aspartame causes migraines, dizziness and more over it reducesyour memoryIt has been experimentally proved that soft drinks are one ofthe prominent reasons for obesity. The weight gain is directly related to theamount of soft drink that a person takes in. With every single can, peopleunknowingly add many extra calories to their body weight.

    c) Diabetes :Another very common effect of soft drinks is diabetes. With everycan of soft drink, people add large amount of sugar in their body. Longhabitual intake of soft drinks can lead to ineffective insulin production frompancreases which consequently affect the sugar level in the body. Thisfurther leads to diabetes.

    d) Osteoporosis: It has been proved that frequent consumption of soft drink canlead to weakening of the bones and osteoporosis. Soft drinks impair thecalcification of the growing bones in children.

    e)Kidney stones: his fact may shock you, but is quite true. Researches haveproved that constant and habitual intake of soft drink can lead to kidney

    stones formation. This happens because of the acidic and mineral radical

    balance. The body triesto buffer the acidity caused by the soft drinks with thecalcium from the bones. This leads to calcium erosion, which ultimately gets

    settled in the kidney in the form of stones.

  • 7/31/2019 Add Math Project 2012 Sabah

    14/32

    14

    f) Indigesdtion:Soft drink also leads to impaired digestive system. Soft drinkcontains phosphoric acid which competes with the hydrochloric acid present instomach and affects its functioning. The ineffectiveness of stomach leads to

    undigested food which further causes indigestion and gassiness.

    g) Dry throat :Soft drinks cause dehydration in the body. Both the sugar and caffeinecomponents of soft drinks are dehydrating agents. They both lead to excessurination, which makes you thirstier than before.

    h) High blood pressure: Soft drinks have strong caffeine content. Caffeine causesirritability, restlessness, tension, high blood pressure, excessive urination and

    other side effects. It is also believed that soft drinks increase blood pressure.

    Some studies also claim that soft drink has harmful effects on liver.

    The sweetener used in soft drinks is Aspartame. It is 200 times sweeter than normal sugar and is

    far more harmful with many side effects.Next time, when head towards the refrigerator or a store

    to satiate your thirst with a can of soft drink, make sure you remind yourself of all the sideeffects that gulping down the beverage will bring forth.

  • 7/31/2019 Add Math Project 2012 Sabah

    15/32

    15

    Part 3Width,x (cm) Length, 1.6x

    (cm)

    Height,h (cm) Total surface

    area,A (cm2)

    1 1.6 156.250000 815.700000

    2 3.2 39.062500 419.050000

    3 4.8 17.361111 299.633332

    4 6.4 9.765625 254.325000

    5 8 6.250000 242.500000

    6 9.6 4.340278 250.616674

    7 11.2 3.188776 272.8714468 12.8 2.441406 306.362490

    9 14.4 1.929012 349.477762

    10 16 1.562500 401.250000

    (a)(ii)

    Length, L (cm) Width, W (cm) Height, H (cm)

    Total Surface

    Area (or

    Amount ofPackaging

    Material Used),

    A (cm2)

    Volume ofCuboid, V (cm

    3)

    5 6.25 8 242.5 250

  • 7/31/2019 Add Math Project 2012 Sabah

    16/32

    16

    (b)(i) Golden RatioThe golden ratio has fascinated Western intellectuals of diverse interests for at

    least 2,400 years. According to Mario Livio:

    Some of the greatest mathematical minds of all ages, from Pythagoras and

    Euclid in ancient Greece, through the medieval Italian mathematician Leonardo of

    Pisa and the Renaissance astronomer Johannes Kepler, to present-day scientific

    figures such as Oxford physicist Roger Penrose, have spent endless hours over this

    simple ratio and its properties. But the fascination with the Golden Ratio is not

    confined just to mathematicians. Biologists, artists, musicians, historians,

    architects, psychologists, and even mystics have pondered and debated the basis of

    its ubiquity and appeal. In fact, it is probably fair to say that the Golden Ratio has

    inspired thinkers of all disciplines like no other number in the history of

    mathematics.Ancient Greek mathematicians first studied what we now call the golden

    ratio because of its frequent appearance in geometry. The division of a line into"extreme and mean ratio" (the golden section) is important in the geometry of

    regular pentagrams and pentagons. The Greeksusually attributed discovery of this concept to Pythagoras or his followers. The

    regular pentagram, which has a regular pentagon inscribed within it, was the

    Pythagoreans' symbol.Euclid's Elements (Greek: ) provides the first known written definition ofwhat is now called the golden ratio: "A straight line is said to have been cut in

    extreme and mean ratio when, as the whole line is to the greater segment, so is the

    greater to the less." Euclid explains a construction for cutting (sectioning) a line "inextreme and mean ratio", i.e. the golden ratio. Throughout the Elements, several

    propositions (theorems in modern terminology) and their proofs employ the golden

    ratio. Some of these propositions show that the golden ratio is an irrational number.The name "extreme and mean ratio" was the principal term used from the

    3rd century BC until about the 18th century.The modern history of the golden ratio starts with Luca Pacioli's De divina

    proportione of 1509, which captured the imagination [citation needed] of artists,

    architects, scientists, and mystics with the properties, mathematical and otherwise,

    of the golden ratio.

    Michael Maestlin, first to publish a decimal approximation of the goldenratio, in 1597.The first known approximation of the (inverse) golden ratio by a decimal fraction,

    stated as "about 0.6180340," was written in 1597 by Michael Maestlin of the

    University of Tbingen in a letter to his former student Johannes Kepler.Since the twentieth century, the golden ratio has been represented by the

    Greek letter or (phi, after Phidias, a sculptor who is said to have employed it)

  • 7/31/2019 Add Math Project 2012 Sabah

    17/32

    17

    or less commonly by (tau, the first letter of the ancient Greek root meaning cut).

  • 7/31/2019 Add Math Project 2012 Sabah

    18/32

    18

    (b)(ii)

    Width, W Length, L Height, H Total surface area, A

    4.0 6.400 9.7656 254.3250

    4.1 6.560 9.2506 251.9627

    4.2 6.720 8.8577 249.9004

    4.3 6.880 8.4505 248.1215

    4.4 7.040 8.0708 246.6111

    4.5 7.200 7.7160 245.3556

    4.6 7.360 7.3842 244.3424

    4.7 7.520 7.0733 243.5603

    4.8 7.680 6.7817 242.99884.9 7.840 6.5077 242.6483

    5.0 8.000 6.2500 242.5000

    5.1 8.160 6.0073 242.5457

    5.2 8.320 5.7785 242.7780

    5.3 8.480 5.5625 243.1898

    5.4 8.640 5.3584 243.7749

    5.5 8.800 5.1653 244.5272

    5.6 8.960 4.9825 245.4413

    5.7 9.120 4.8092 246.5119

    5.8 9.280 4.6448 247.7342

    5.9 9.440 4.4887 249.1039

    Width (cm) Lenght (cm) Height (cm) Total Surface

    Area (cm2)

    4.90 7.84 6.51 242.6483

    4.91 7.86 6.48 242.6245

    4.92 7.87 6.45 242.60284.93 7.89 6.43 242.5830

    4.94 7.90 6.40 242.5652

    4.95 7.92 6.38 242.5494

    4.96 7.94 6.35 242.5356

    4.97 7.95 6.33 242.5238

    4.98 7.97 6.30 242.5139

  • 7/31/2019 Add Math Project 2012 Sabah

    19/32

    19

    4.99 7.98 6.28 242.5060

    5.00 8.00 6.25 242.5000

    5.01 8.02 6.23 242.4960

    5.02 8.03 6.20 242.4939

    5.03 8.05 6.18 242.49375.04 8.06 6.15 242.4954

    5.05 8.08 6.13 242.4991

    5.06 8.10 6.10 242.5046

    5.07 8.11 6.08 242.5121

    5.08 8.13 6.05 242.5214

    5.09 8.14 6.03 242.5326

    5.10 8.16 6.01 242.5457

    (b)(iii)

    Width, x

    (cm)Length, 1.6x (cm) Height, h (cm)

    Total Surface

    Area , A (cm2)

    Volume of

    Cuboid, V (cm3)

    5.03 8.05 6.18 242.4937 250.2375

    Calculation using differentiation, V = 250 cm31.6xh=250h=250/1.6xA=2[1.6x + 1.6xh+xh]

    =2[1.6x + 2.6xh]

  • 7/31/2019 Add Math Project 2012 Sabah

    20/32

    20

    =2[1.6x + 2.6x (250/1.6x)]=3.2x + 812.5/x

    Dy/dx= 6.4x812.5x0 = 6.4x812.5/x0 = 6.4x - 812.5

    x = 812.5/6.4x = 5.03 cm ( from tabulation table above, x = 5 cm; ok)1.6x = 8.0 cm

    H=250/1.6(5.)= 6.25 cm.: Length = 8.0cm; Width = 5.0cm; and Height = 6.25cm

  • 7/31/2019 Add Math Project 2012 Sabah

    21/32

    21

  • 7/31/2019 Add Math Project 2012 Sabah

    22/32

    22

    (c)

    h = 6.25 cm (from tabulation table, b (iii))1/3 x 6.25x = 250

    X = 10.954 cm

    6.25+(10.954/2) = 8.3102Total surface area = (10.954 x 8.3102) x 4+ 10.954 = 301.99cm

    Note : Total surface area for pyramid > totalsurface area for cuboid packaged drinks;

    more material are needed : not good

    h = 6.25 cm (from tabulation table, b (iii))

    1/3 r x 6.25= 250

    r=6.18 cm

    6.25 + (6.18/2) = 6.972

    Total surface area = rl + r

    = (6.18)(6.972) + (6.18) =

    255.3466cm

    http://3.bp.blogspot.com/-9lCt9QRT0UY/T93Ns3OCCYI/AAAAAAAAANE/MPMsnftCAWY/s1600/kk.jpghttp://3.bp.blogspot.com/-9lCt9QRT0UY/T93Ns3OCCYI/AAAAAAAAANE/MPMsnftCAWY/s1600/kk.jpg
  • 7/31/2019 Add Math Project 2012 Sabah

    23/32

    23

    h = 6.25 cm (from tabulation table, b (iii))r x 6.25 = 250r = 3.568

    Total surface area=2(3.568) + 2(3.568)(6.25) = 220.1cm

    https://encrypted-tbn1.google.com/images?q=tbn:ANd9GcR4ZM6As1ihaJpPv889yQRZpvfvW-UvEZyZBtwiSc3vSpz5EVgzqpbX2mdY
  • 7/31/2019 Add Math Project 2012 Sabah

    24/32

    24

    FURTHER EXPLORATION(a)

    Shape s of packaging Pro(s) Con(s)

    Pyramid -the stability of the drink

    packaging will be more stable

    because the base area larger

    -the shape of the drinkpackaging become more

    unique because its rarelyfound in the market.

    -the cost of packaging

    material will be higher

    because more total surface

    area required.

    Cone -the stability of the drink

    packaging will be more stablebecause the base area larger-the shape of the drink

    packaging become more

    unique because its rarelyfound in the market.

    -the cost of packaging

    material will be higherbecause more total surfacearea required.

    Cyclinder -the drink packaging has

    clean line construction and

    easy to clean, disinfect and

    has smooth lines.- the shape of packaging is

    usually found in the market.

    -the cost of packaging

    material is lower because it

    has small total surface.

  • 7/31/2019 Add Math Project 2012 Sabah

    25/32

    25

    Futher Exploration

    Material usually used to packaged drink.

    Usually drinks are packaged using materials like plastic, aluminum, and glass in

    different shapes and form. It usually come packaged in bottle ( plastic or glass )

    and can ( aluminum ) .

    Plastic

    Composition of Plastic

    Most organic polymers are plastics. The vast majority of these polymers are based on

    chains of carbon atoms alone or with oxygen, sulfur, or nitrogen as well. The backboneis that part of the chain on the main "path" linking a large number of repeat units

    together. To customize the properties of a plastic, different molecular groups "hang"

    from the backbone (usually they are "hung" as part of the monomers before linking

    monomers together to form the polymer chain). The structure of these "side chains"

    influence the properties of the polymer. This fine tuning of the properties of the polymer

    by repeating unit's molecular structure has allowed plastics to become an indispensable

    part of the twenty-first century world

    Additives of plastic

    . Most plastics contain other organic or inorganic compounds blended in. The amount of

    additives ranges from zero percentage for polymers used to wrap foods to more than

    50% for certain electronic applications. The average content of additives is 20% by

    weight of the polymer. Fillers improve performance and/or reduce production

    costs. Stabilizing additivesinclude fire retardants to lower the flammability of the

    material. Many plastics contain fillers, relatively inert and inexpensive materials that

    make the product cheaper by weight. Typically fillers are mineral in origin, e.g., chalk.

    Some fillers are more chemically active and are called reinforcing agents. Since many

    organic polymers are too rigid for particular applications, they are blended

    with plasticizers, oily compounds that confer improved rheology. Colorants are of coursecommon additives, although their weight contribution is small. Many of the controversies

    associated with plastics are associated with the additives.

    Recycling of Plastic

    Plastic can be recycled. There are about 50 types of plastic used in the industry. Theplastics industry has developed a coding system to help consumers identify different

    http://en.wikipedia.org/wiki/Carbonhttp://en.wikipedia.org/wiki/Oxygenhttp://en.wikipedia.org/wiki/Sulfurhttp://en.wikipedia.org/wiki/Nitrogenhttp://en.wikipedia.org/wiki/Inorganic_compoundhttp://en.wikipedia.org/wiki/Stabilizer_(chemistry)http://en.wikipedia.org/wiki/Stabilizer_(chemistry)http://en.wikipedia.org/wiki/Fire_retardanthttp://en.wikipedia.org/wiki/Filler_(materials)http://en.wikipedia.org/wiki/Chalkhttp://en.wikipedia.org/wiki/Plasticizerhttp://en.wikipedia.org/wiki/Rheologyhttp://en.wikipedia.org/wiki/Rheologyhttp://en.wikipedia.org/wiki/Plasticizerhttp://en.wikipedia.org/wiki/Chalkhttp://en.wikipedia.org/wiki/Filler_(materials)http://en.wikipedia.org/wiki/Fire_retardanthttp://en.wikipedia.org/wiki/Stabilizer_(chemistry)http://en.wikipedia.org/wiki/Inorganic_compoundhttp://en.wikipedia.org/wiki/Nitrogenhttp://en.wikipedia.org/wiki/Sulfurhttp://en.wikipedia.org/wiki/Oxygenhttp://en.wikipedia.org/wiki/Carbon
  • 7/31/2019 Add Math Project 2012 Sabah

    26/32

    26

    types of plastic resins used in packaging. The codes can be found on the bottom ofmost plastic containers. Plastic Bottles:The material used to make plastic soda bottles(polythylene terephthalate or PET) is recyclable. These bottles are coded with thenumber 1 and the letters PETE. About 30 percent of all PET bottles sold are recycledinto a variety of products.

    Glass

    Composition of Glass

    Most glass is a mixture of silica obtained from beds of fine sand or from pulverized

    sandstone; an alkali to lower the melting point, usually a form of soda or, for finer glass,

    potash; lime as a stabilizer; and cullet (waste glass) to assist in melting the mixture. The

    properties of glass are varied by adding other substances, commonly in the form of

    oxides, e.g., lead, for brilliance and weight; boron, for thermal and electrical resistance;

    barium, to increase the refractive index, as in optical glass; cerium, to absorb infrared

    rays; metallic oxides, to impart color; and manganese, for decolorizing. The termcrystal glass, derived from rock crystal, was at first applied to clear, highly refractive

    glass; it has come to denote in the trade a high-grade, colorless glass and is sometimes

    applied to any fine hand-blown glass.

    Additivities of Glass

    Glass also contains additives. Additives are used in glass coloring and color marking.

    Glass coloring and color marking may be obtained by addition of coloring ions,

    precipitation of nanometer sized colloides (so-called striking glassessuch as "ruby

    gold" or red "selenium ruby" by colored inclusions (as in milk glass and smoked glass),by light scattering (as in phase separated glass), by dichroic coatings (seedichroic

    glass), or by colored coatings. The additives used in glass will not affect the user.

    Recycling of Glass

    Glass is endlessly recyclable, and most glass bottles and jars produced contain at least 25%

    recycled glass which also requires 75% less energy to produce than glass made from new

    materials. In recycling glass . the glass is sorted by colour and washed to remove impurities The

    glass is then crushed and melted, then moulded into new products such as bottles and jars. Or

    it may be used for alternative purposes such as brick manufacture or decorative uses.The glassis then sent back to the shops ready to be used again.

    http://en.wikipedia.org/wiki/Glasshttp://en.wikipedia.org/wiki/Colorhttp://en.wikipedia.org/wiki/Milk_glasshttp://en.wikipedia.org/wiki/Smoked_glasshttp://en.wikipedia.org/wiki/Scatteringhttp://en.wikipedia.org/wiki/Phase_separated_glasshttp://en.wikipedia.org/wiki/Dichroichttp://en.wikipedia.org/wiki/Dichroic_glasshttp://en.wikipedia.org/wiki/Dichroic_glasshttp://en.wikipedia.org/wiki/Dichroic_glasshttp://en.wikipedia.org/wiki/Dichroic_glasshttp://en.wikipedia.org/wiki/Dichroichttp://en.wikipedia.org/wiki/Phase_separated_glasshttp://en.wikipedia.org/wiki/Scatteringhttp://en.wikipedia.org/wiki/Smoked_glasshttp://en.wikipedia.org/wiki/Milk_glasshttp://en.wikipedia.org/wiki/Colorhttp://en.wikipedia.org/wiki/Glass
  • 7/31/2019 Add Math Project 2012 Sabah

    27/32

    27

    Aluminum

    Composition of aluminum can

    Aluminum is a silvery white member of the boron group of chemical elements. It has the

    symbol Al, and its atomic number is 13. It is not soluble in water under normalcircumstances. Aluminum metal is so chemically reactive that native specimens are rare

    and limited to extreme reducing environments. Instead, it is found combined in over

    270 different minerals.[4]The chief ore of aluminum is bauxite. It is remarkable for the

    metal's low density and for its ability to resist corrosion due to the phenomenon

    of passivation.

    Additives of aluminum can

    There are no additives in aluminum can .

    Recycling of aluminum can

    Aluminum is a sustainable metal and can be recycled over and over again. A can is

    generally turned into a new can and back on store shelves within 60 days. Cans are

    usually available through curbside pickup or community drop-off locations nationwide.

    http://en.wikipedia.org/wiki/Boron_grouphttp://en.wikipedia.org/wiki/Chemical_elementhttp://en.wikipedia.org/wiki/Atomic_numberhttp://en.wikipedia.org/wiki/Redoxhttp://en.wikipedia.org/wiki/Mineralhttp://en.wikipedia.org/wiki/Aluminium#cite_note-3http://en.wikipedia.org/wiki/Aluminium#cite_note-3http://en.wikipedia.org/wiki/Aluminium#cite_note-3http://en.wikipedia.org/wiki/Orehttp://en.wikipedia.org/wiki/Bauxitehttp://en.wikipedia.org/wiki/Densityhttp://en.wikipedia.org/wiki/Corrosionhttp://en.wikipedia.org/wiki/Passivationhttp://en.wikipedia.org/wiki/Passivationhttp://en.wikipedia.org/wiki/Corrosionhttp://en.wikipedia.org/wiki/Densityhttp://en.wikipedia.org/wiki/Bauxitehttp://en.wikipedia.org/wiki/Orehttp://en.wikipedia.org/wiki/Aluminium#cite_note-3http://en.wikipedia.org/wiki/Mineralhttp://en.wikipedia.org/wiki/Redoxhttp://en.wikipedia.org/wiki/Atomic_numberhttp://en.wikipedia.org/wiki/Chemical_elementhttp://en.wikipedia.org/wiki/Boron_group
  • 7/31/2019 Add Math Project 2012 Sabah

    28/32

    28

    Eco-friendly Material for pakaging drinks

    The term eco-friendly is used to describe activities which are good for the environment. It is a

    shortening of ecologically friendly, and you may also hear terms like environmentally

    friendly or green used to describe similar activities. There are a range of ways in which

    activities can be eco-friendly, ranging from products which are constructed in an

    environmentally friendly way to making lifestyle changes which are designed to benefit the

    environment. The most eco-friendly material for packaging drinks is glass.

    Glass is more environmentally friendly because it doesn't use fossil fuels to produce, however

    as far as recycling is concerned it is difficult to say. Conclusive life-cycle studies are yet to be

    fully analyzed. However glass can be more easily returned to its natural state of composite

    sand. Whereas plastic takes on average 2000 years to biodegrade.Meanwhile, aluminum can

    also be recycle. But it cannot be reuse again like glass. It has to undergo several process in the

    treatment plant to be able to be used again. This require more energy .

    On the other hand, glass is more enviromentally friendly because glass could be used over and

    over again. It is long lasting and Glass is 100% recyclable and can be recycled endlessly with no

    loss in quality or purity. Glass recycling is a closed loop system, creating no additional waste or

    by-products. Glass is a mono-material, meaning it is not made up of several different materials.

  • 7/31/2019 Add Math Project 2012 Sabah

    29/32

    29

    .

    Plastic bottle use in packaging drinks.

    Glass bottle used in packaging drinks.

  • 7/31/2019 Add Math Project 2012 Sabah

    30/32

    30

    Aluminum can used in packaging drinks.

  • 7/31/2019 Add Math Project 2012 Sabah

    31/32

    31

    Conclusion

    After doing research, answering questions, drawing graphs and some

    problem solving, I saw that the usage of statistics is important in daily life. It

    is not just widely used in markets but also in interpreting the condition of the

    surrounding like the air or the water. Especially in conducting an air-pollution

    survey. In conclusion, statistics is a daily life necessities. Without it, surveys

    cant be conducted, the stock market cant be interpret and many more.

    Statistics are a major staple of our world today. They are used in practically

    any situation and help improve our overall lifestyle. Statistics change the way

    we think about tomorrow and the way we live today and without them. So,

    we should be thankful of the people who contribute in the idea of statistics.

  • 7/31/2019 Add Math Project 2012 Sabah

    32/32

    Reflection

    Reflection buat sendiri,adakah reflection pun mau tiru. Senang2 bah mau

    reflection ko letak jak apa2 gambar ka,poem ka. Yg penting ada,5 markah trus.Jgnlupa bagi kredit sama orng yg buat ni kerja.