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What determines sinking and floating?
Shape a piece of lead, tin or aluminium foil into the form of a little boat and float it on the water in a pan; now wad the metal foil from the boat into a little ball and try to float it on the water.
Procedure: Take any appliance1 equipment in the laboratory e-g., the oven, electric heater, sodium lamp, immersion rod, the vacuum pump, autoclave, heating mantle, refrigerator, i
Measuring atmospheric pressure with a bicycle pump A bicycle pump with the washer reversed as represents can be used to calculate atmospheric pres- sure. The piston can be made
Model water wheels A meat skewer or a knitting needle can be used as an axle. An old typewriter ribbon- spool or a sticking plaster reel is useful as a basis for these improvis
Reflexes: It is of interest to know, that all sensory information does not have to go to the - brain before we can react to a stimulus. Our responses to certain stimuli
What is the reason for colours of actinide
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 old is the earth Ans) The earth has only very freshly been accurately dated. Until astonishingly recently, the earth was thought to be anywhere among a few hundred thousand
The active ingredient in Antabuse, a drug used for the treatment of chronic alcoholism, is tetraethylthiuram disulfide, C10H20N2S4 (fw = 296.54). The sulfur in a 0.4329 g. sample o
Specific gravity and pH of Urine Normally, the first morning urine has a specific gravity of 1.015 to 1.020. Normal urine is usually slightly acidic with a pH of about 6.0.
Keep acid/base concentration of blood constant - Function of Kidney Keep the acid/base concentration of the blood constant and regulate the blood-pressure. Renin, an enzyme- li
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