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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.
fertilization of an earthworm
Requirements Glassware like flask, petri plates, test tubes, pipettes isi infect ant Cleaning brush Liquid soap solution Bucket Enamel tray/steel tray Aluminium
Explain Inspiratory Capacity and Expiratory Reserve Volume Inspiratory Capacity (IC): It is the tidal volume and the volume of air taken during maximum inspiratory effort.
Define Natural killer cells (NK cells) They are large sized lymphocytes, specifically equipped to kill virally infected cells, some of the virally infected cells acquire a spec
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How different pressures of air force water from a container Fit a test tube with a two-hole stopper. By one hole place a length of glass tube which extends into the test tube a
Prevention of disease: Now that we know that infectious diseases are caused by microbes, it should be possible to prevent diseases by controlling their transmission and proper
The meaning of 'rock' and 'mineral' Develop the meaning of these two terms by a study of the specimens collected. A rock is usually regarded as mineral matter found in t
How are electrons arranged around the nucleus? Electrons are arranged into very specific rings known as orbitals. Electron orbitals, sometimes referred to as electron shells, c
What is the common name for the test that provides the hardness of the material by the size of an indent left in it by a standard steel ball? The Brinell Test
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