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Blowing soap bubbles
Soap films and bubbles serve very well for observations on surface tension. You can make a good soap bubble solution by placing three level tablespoonfuls of soap powder or soap flakes into four cups of hot water. Let the solution stand for three days previous to using. Try blowing bubbles with a bubble blower, a soda straw, a clay pipe and an old tin horn about 4 cm in diameter.
Disease: All of us, at one time or another, have suffered from fever, aches. vomiting, nausea. diarrhoea, flu, cold, general weaknessetc. Illness can arise from a number of fac
Emulsification : Water immiscible liquid wastes can be emulsified using soap or detergent solution and then run into the drainage. Examples: Benzene, toluene, cyclohexane, nitrobe
Define the Sources of sound and their level of loudness Let us now have a look at Table, where the various sources of sound, their level of loudness and its comparison to the f
What is hydrolysis Fats when boiled with water at 220°C under pressure in an autoclave, undergo hydrolysis to first form a diglyceride and then ultimately glycerol an
1) Consider the diagram below, where a pump is used to draw water from a lake to feed an irrigation system. a) Which of the points of departure the minimum water flow takes
Acid Rain: A side effect of air pollution is acid rain, which is now of common occurrence. You might have seen, that some industries build very tall smoke stacks to protect t
what is soil erosion?
Which is NOT true about the concentration of methane gas in the atmosphere: It is generated as a byproduct of refrigerants and aerosols
Define Nerve Cell Morphology The neurons in the mammalian nervous system occur in a variety of shapes and sizes. A typical cell has a cell body, the dendrites, axon and its ter
how to test for starch
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