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Softening water with chemicals Try making suds with a half test tube of hard water and a few drops of soap solution. Next boil a same sample and again try to make suds by usin
Biotechnology in agriculture: Production of enough food to meet the demands of an ever-increasing population in the world is a major task and a challenge to agricultural scient
Pluto: Pluto's existence was also proposed to account for deviations in the orbit of Uranus. Even after the influence of Neptune~had been accounted for, an American astron
Controlling Air Pollution: Now let us see, how air pollution can be controlled. i) Photochemical smog-eliminating this would require large scale changes in life style
INTRODUCTION : In this unit, we introduce you to the fundamental of personal safety code in a laboratory. If you do not have safe laboratory practice, your life and those of your
Geocentric Universe of the Ancients: The earliest ideas of the Egyptians and Sumerians about the universe may seem strangeto us. The Earth appeared flat 2nd solid tg them.
what is chemical reation
Define the Functions of Cerebrospinal Fluid The CSF has many functions. These include the following: 1) It provides the optimum condition for a meaningful signal/stimulus. T
Observing sun spots Use the telescope that you made in a last experiment. Set it up so that it points directly at the sun and focus it so that a clear and bright image of the s
The Fume Cupboard : If a reaction uses or produces harmful gases, dusts or vapours, it poses a risk of inhalation. Such reactions should be carried out not on an open bench but in
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