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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.
What is happening to the length of a day on the Earth, as a result of the gravitational pull of the Moon?
Give the introduction to Lipids metabolism ? Lipids are a heterogeneous group of organic compounds. The major dietary lipids for humans are animal and plant triacylglycerols,
Atomic energy: In view of the fast depletion of our non-renewable resources like coal and petroleum, and because of pollution which power stations burning coal cause, there h
1. A cyclist ascends a hill of height 120 meters. The mass of cyclist plus bicycle is 100 kilograms. His efficiency is 25%. How many Calories does he burn? 2. A hiker in the Swi
Paper manufacture: Paper was not used in India until the eleventh century. This Chinese invention of the first .century A.D. reached India mainly through the Ghorian conquerors
This project is intended to stimulate discussion during the lectures/tutorials on the choices of materials and manufacturing issues related to materials. We will discuss our "objec
1. Define potential and kinetic energy. 2. State the first and second laws of thermodynamics. 3. Explain how organisms tend to defy the second law of thermodynam
which organs are protected by the skull
How water can be decomposed You will require a six-volt storage battery or accumulator or a battery of six dry cells for this interesting experiment. Take away the insulation f
Freezing by Contact with a Cooled Liquid: Immersion Freezing In this method, the food is immersed in low-temperature brine to achieve fast temperature reduction through direct
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