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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 ?
Beneficial Role of Soil Organisms The soil organisms play a significant role in the life cycles of plant and animals through decomposition, synthesis and transformation, in wh
Discuss main factors that influence mass movements. Ans) Things as if climate and food availability will make a big dissimilarity if it is too cold, too dry then people will re
how are the size and mass different from earth ?
Storage and handling of chemical substances are two important duties of a laboratory worker. Both of these require appropriate safety measures to avoid any accident. In this secti
what types of birds are there
What is earth science?
Stroke A patient has experienced a bleed in the left frontal lobe of their brain. Describe the changes that are likely to affect motor function after this bleed. Mobility, re
Explain Antibodies and Clotting - Functions of Plasma Proteins Antibodies: Plasma proteins belonging to the class of y-globulins act as antibodies, which protect us from infect
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
Explain the Normal Constituents of Urine The normal constituents of urine are of two types. These are the organic substances and the inorganic substances as listed Organic
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