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Floating a needle on water
Thoroughly dry a steel needle. Place it on the tines of a dinner fork and gently smash the surface of the water in a dish with the fork. If you are careful the needle will float as you take the fork away. Look at the water surface closely. Can you see how the surface film seems to curve under the weight of the needle ?
Putting a point on a brush Secure a paint brush of some sort and get the bristles. Now dip the brush in water and you will view that surface tension has drawn the bristles tog
Define Physiology of Growth and Development Growth refers to 'increase in size' and development refers to 'maturation of function'. They are generally associated with each othe
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
Social Role of Communication: Social relevance of communication follows from the economic and political role of communication. We, in this country, have often talked about u
Geometry and Astronomy: The need to portray an ideal world of perfect forms and proportions led to the development of geometry by Pythagoras (583-500 B.C.) and Hippocrates o
What Are the Constituents of the Intestinal Juice? Intestinal juice is also called succus entericus. The word succus means juice and entericus means intestinal. The digestive j
does the thickness seed coat effect the groth of the seed???
Nuclear Fusion: The Ultimate Source of Energy : An energy hungry world views with envy the glowing power of the sun and the stars, which is based on a slightly different nuclea
Reduction reaction Aldoses and ketoses are reduced to the corresponding polyhydroxy alcohols by sodium borohydride, sodium amalgam, etc. So, in this reaction, glucose
Decline of the Bronze Age Civilisation: We find that the great developments in production methods that came with the rise of early cities lasted only f6r a few centuries. The
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