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Cement and concrete
Secure a small bag of Portland cement. Have the pupils mix it with water and put it in tin can covers, paper cups, or small pasteboard boxes unless it hardens. Study its appearance and its properties. Break a piece of cement and study it. Mix the dry cement with about twice as much sand or gravel. This will form concrete. After adding water and mixing thoroughly place it in moulds. Permit these to arden various days. Again study the appearance and the characteristics of these samples.
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Diseases due to Protein-Calorie malnutridon : The developing countries of the world today are faced with diseases due to Protein-Calorie malnutrition. The most affected group a
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What are some faqs about the mineral Bloodstone.
with introduction description structures and conclusion
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WHAT ARE THE APPLICATIONS OF LP
Minerals Minerals like coal, iron, copper, steel etc. are used in all kinds of industries and in every-day life. The rate of consumption of minerals is increasing every year.
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