CHALKS out of SEASHELLS An Investigatory Project Submitted as an Entry to the School Science Fair Zamboanga del Sur National High School – Main Campus Pagadian City School Year: 2008-2009 RESEARCHERS: Zagada‚ Charlyn Magno‚ April Love Capiten‚ Ednalyn Retes‚ Cherrylou Rafols‚ Ivony Espinoza‚ Kenmore Tenorio‚ Wilton Vil Aclan‚ Kate Audi Dayuha‚ Reylan Lantaya‚ Gualberto Macapobre‚ Marizze Patuñgan‚ Gerneth ABSTRACT The study on the production of chalk out of sea shells was
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Head: Eggshells used in chalk production Eggshell as an alternative source in chalk production Ryan Jason U. Joquico Lourdes School of Mandaluyong II-Blessed Andrew Hyacinth Longhin September 5‚ 2011 CHAPTER I INTRODUCTION Background of the Study The Research is about the effectiveness of eggshells as an alternative ingredient in chalk production. The study is very efficient in these days because many people are in need of chalk. The components of chalk are so complex that
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Alkynes are colorless and insoluble in water. The lower the members of alkynes (acetylene‚ allylene‚ and crotonylene) are gases. The homology from carbon number 5 to 15 (C5H8 to C15 H28) are liquid and the higher members are solid. Acetylene possesses a pleasant odor when pure. The impure acetylene contains phosphine‚ hydrogen sulphide etc and hence smells bad. Acetylene can be liqiufied at 0°C under 48 Torrs of pressure. The melting point of Acetylene is -81.8°C and boiling point -83.4°C. It is
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Parents can join us on 22.03.13 for red day celebration from 11:00 am onwards. Classes as usual. Holi Celebration on 25.03.13 and 26.03.13 25.03.13 Parents can join for colouring rangoli templates with colours of their choice ( decorating with chalk powder‚ coloured sand‚ glitter powder‚ crayons‚ sketch pen‚ water colour.) 26.03.13 water activities send towel extra set of clothes timing 10:00 am onwards. No class . Parents can join us for the celebration ALL ABOUT MY SELF MONTH Through the
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material is hurled against cliffs as waves hit them‚ wearing the cliff away. | Coastal Transport | Description | Solution | Minerals are dissolved in seawater and carried in solution. The load is not visible. Load can come from cliffs made from chalk or limestone‚ and calcium carbonate is carried along in solution. | Suspension | Small particles are carried in water‚ e.g. silts and clays‚ which can make the water look cloudy. Currents pick up large amounts of sediment in suspension during a storm
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the water picks up more carbon dioxide from organic debris. The water and carbon dioxide combine to form a weak carbonic acid. This acid reacts with minerals in the rocks and either dissolves them or turns them into other minerals. Rocks such as chalk and limestone contain calcium carbonate. The calcium carbonate reacts with the weak carbonic acid to form calcium bicarbonate which is soluble. It is then removed in solution. Carbonation is extremely effective at weathering limestone landscapes because
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ABSTRACT The study on the production of chalk out of sea shells was designed to producequality dustless and long lasting chalk to compare with the standard existingcommercialized chalks if there are any‚ which was sold in the market. The chalk out of sea shells is for local or non-local used for schools or any educational aspects or even athome which can be formed into different sizes and colors according to your will. We‚ theresearchers‚ used the sea shells to recycle and transformed it into a
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Chalk and Cheese My children‚ Kaylee and Brendan were born 18 months apart in 2000 and 2002. Looking at them‚ you can tell they are siblings; sometimes they are even mistaken for twins! But once you get to know them‚ you will find they are as different as chalk and cheese. Kaylee and Brendan were raised in the same home by the same parents‚ but they couldn’t be more diverse mentally‚ academically and socially. Kaylee and Brendan are like night and day in how they think. Sometimes I like
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School Year 2011-2012 A REQUIREMENT FOR SCIENCE IV: PHYSICS “Oyster Shells for Sealants” 1. Introduction Leak are one of houses major problem. It won’t let you sleep when rain is pouring so hard and your roof has holes.Your water bills will be high because your water pipe has a leak. These are just some of the problems we encounter in our houses‚Primary cure to this problems are sealants.Oyster isn’t just any seafood its shells has avery useful usage.Oyster shells has a calcium carbonate
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which live in wood (wood pecker and carpenter ant). Studies states that sawdust contains lead‚ cadmium‚ chromium‚ barium‚ arsenic and memory. (C. Lo‚ 2013) On the other hand‚ seashells are generally composed of calcium carbonate‚ which is secreted by the outer surface of the mantle of the shell as the creature ages. Seashells are the exoskeletons of mollusks such as snails‚ clams‚ oysters and many others. Such shells have three distinct layers and compost mostly of calcium carbonate with a small quantity
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