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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 ?
would sandstone or quartzite break easier?
what do you mean by "super class" species "pisces"?
Corrosive Substances : These substances cause severe damage by chemical action when in contact with living tissue or in case of leakage, destroy /damage other materials. Mineral a
Explain Functions of the Pancreas - Neutralising action Neutralising action: Pancreatic juice is alkaline in nature and acid chyme is rendered alkaline by the strong alkalinity
Explain the Dichromates or Mild Colour Blindness A dichromate individual possesses only two cone pigments. Lack of the red pigment, called protanopia, makes distinguishing of t
Explain the Complex Cells - Primary Visual Cortex They are sensitive to both orientation and movement. For example, a line or edge with a particular tilt might stimulate a comp
What is metre?
Minimally processed fresh foods Today's consumers are increasingly demanding convenient, ready-to-use and ready-to-eat foods with a fresh like quality, and containing only nat
Define the Absorption of Amino Acid Proteins are absorbed in the form of amino acids. Amino acid transport occurs 'only in the presence of simultaneous sodium transport. Carrie
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
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