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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.
State about the carbonaceous and nitrogeneous materials The basic ingredients of these are either animal or human excreta containing microorganisms which decompose carbonaceous
Lab coats : The lab coat should fit well and should be buttoned up correctly at all times. Cotton lab coats are more suitable than those made from nylon as the former could absorb
What is Parent material Parent material refers to the primary material from which the soil is formed. The parent material may be either a solid rock, a decomposed rock, organic
Symptoms of AIDS The HIV infection cannot be detected in early stages because the infected person does not show any sign of illness right away and appears a healthy normal indi
what is the best part of the body??
What is the name for a roughly circular coral reef enclosing a shallow lagoon: atoll
essay on friction is a necessary evil
Describe about the Moles Molehills, frequently observed in some fields are composed of subsoil deposited by moles. They need a good reserve of calcium in soil.
Role of Communication in the Economic Development: This is as much as one-sixth of the world's population. In the year 1981,446 million Indians were illiterate, i.e., they co
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