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Driving a boat by surface tension
Secure some gum camphor at the drug shop. Cut two or three boats from stiff paper, every about 2.5 cm in length. Cut a notch in the stern large sufficient to hold a small lump of gum camphor in contact with the water without letting it fall out. Float your boats in a large pan of water.
Poisons : It is essential that all dangerous substances, such as cyanides, are always kept under strict control. Steps to ensure such control are as follows: i) All substances
discuss homeostatis. I have choosen the bodies temperature and I need to discuss it and what effects it has on the body
State about the Oxidised forms of elements Oxidised forms of elements are more desirable for most common crops grown in acid soils and humid regions while the reduced forms of
State the categories of bulky organic manures These are evaluated mainly on the basis of their nitrogen content and the amount of organic matter present in them. The two import
Extra-terrestrial life: Just as we have been curious about how life originated on the Earth, we have also tried to explore whether there is life on any other planet in the Sol
Crystal Structure of Clays Most clay minerals have two types of basic structural units - tetrahedral and octahedral. The tetrahedral unit is 4- 4 SiO in which silicon
What is a hypothesis? Ans) A hypothesis is a postulation as to what could be the case; it is a suggestion as to something that precisely models and describes some aspect in re
Define the olfactory area of the Cerebrum The olfactory area lies deep within the temporal lobe. Look at Figurefor its position. Cells receive and interpret impulses from nose
The physico-chemical properties of cyanocobalamin are as follows: a) The vitamin can be obtained in a crystalline form. b) It is freely soluble in water. c) Crystal
You are the mayor of a beautiful city by the ocean, and your city is connected to the mainland by a set of k bridges. Your city manager tells you that it is necessary to come up wi
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