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Floating in different liquids
Obtain a tall, slender glass jar, test tube or bottle, and the following liquids: mercury, carbon tetrachloride, water and kerosene. You will also require a small iron or steel ball such as a ball bearing, or iron nut or bolt; a small piece of ebony or some other wood that sinks in water; a piece of paraffin wax; and a piece of cork. First pour some mercury into the glass jar, then some carbon tetra- chloride, some water and some kerosene.
Fire Buckets : All labs should be equipped with a fire bucket. The buckets are not used only for carrying water to a fire. This is one of their uses. The other way a fire bucket i
Explain Genetic Theory of ageing Rate of ageing varies between species. The difference is in the genetic changes in the species. Thus it can be said that gradual impairment of
How to make a simple apparatus for distilling water You can make a easy water-distilling apparatus from a flask, and a length of glass or rubber tubing. Fit the flask with a si
laboratory apparatus for separating mixture
Describe the factors which decide the broad area of scientific activity/
Disposal of Unserviceable and Obsolete Items : Every institution may have evolved its own procedure for the same. Generally the following procedure is used for the disposal of uns
Define the Pons Varolli Look at Figure Situated in front of the cerebellum below the midbrain and above the medulla oblongata, is the pons. It is involved in motor control and
Q. What are the different states in which water is found during the water cycle? During the water cycle, water is found in solid state (snow, ice, etc.), liquid state (ground wa
how do the currents produced by a 1.5V flashlight cell and a 12 V car battery compare if the resistance is the same?
Explain the Local Hormones Local hormones affect cells in the vicinity of the organ secreting the hormone, what we call as paracrine influence. Examples of local hormones are g
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