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You can observe the buoyancy of water
Make an equivalent arm balance. Secure two soda water-bottles and suspend them with loops of string from either side of the arm. Unless they balance exactly. Bring a pail of water up less than one of the bottles unless the bottle sinks in the water a little way.
heat always from where things to where things
ray optics
Pollution due to Radiations: Hazards of nuclear radiations are extremely serious, because they upset the genetic make up of the living beings. Environmental pollution from
How to make a devil diver (Cartesian diver) Find a tall glass jar with a quite wide mouth. Wrap a few turns of copper wire about the thin part of the rubber bulb from a medicin
Explain Brain or Detector - Mechanism of Colour Perception The fibre identification of colour takes place in the brain. If any of these four pre-requisites are not present, the
Question 1: a) Briefly explain the following terms: i) evaporation ii) condensation iii) transpiration b) Describe the hydrologic cycle. Question 2: a) Define an
What are the differences between prejudice, discrimination and stereotype? Prejudice; This is generally referred to as being unfair, bias or opinions towards another person
Reactions of Carboxylic Group Salt formation: In alkaline medium, XOOH group reacts with metal hydroxide to form amino acid salts.
Media and Educational Environment: Some recent technological developments in media, have opened up new horizons. Besides, increasing use of media, to support and expand educa
What is the earth crust made of? Ans) The overall composition of the Earth crust is as follows: Silicon 27.7% Oxygen 46.6% Iron 5.0% Aluminum 8.1% All other elem
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