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Air expands when heated
To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glass tubing or a soda straw by it. Place the end of the tube in a small bottle of water. Heat the flask and view what happens. Heat the flask until a considerable amount of air has been separated and then cool the flask by pouring cold water over it or by rubbing with a piece of ice.
A simple mercury barometer Seal single end of a glass tube about 80 cm in length by rotating it in a gas flame. The tube should be held as almost vertical as possible. Join a s
why did the horse evolve
Freezing by Contact with a Cooled Gas Different methods are available for freezing by contact with cooled gas. These include: i) Cabinet Freezing: This method involves ci
Control of Environment: Control of environment is essential for maintaining good health. Environmental factors which are basic to individual and community health are housing
Define Growth Hormone (GH) It is a protein containing 19lamino acids in a single chain. It is secreted by somatotrophs throughout life even though growth stops at adolescence.
There are many different venomous animals in the world.The venom produced by one animal can be very different that the venom produced by another animal. There are some animal venom
Explain about the soil formers Soil development or soil genesis as it is called, is the result of a number of factors such as parent material, topography, time, climate and bio
Define the Structure of Ear - The Organ of Hearing The human ear consists of three sections: the outer ear, the middle ear and the inner ear as illustrated in Figure. The oute
Remove the wastes from the body - Function of Kidney Remove the wastes from the body. Many metabolic waste products such as urea, uric acid, ammonia and creatinine need to be f
How do you explain the fact that clay soils which commonly have higher pore space than sandy soils are often more poorly aerated than sandy soils. Clay soils have higher pore s
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