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Sinking bodies
Fill the overflow can with water to the level of the spout. Select a stone that will go inside the overflow can. Attach a string to the stone and weigh it with a spring balance. Weigh the catch bucket. Place the catch bucket underneath the spout. Immerse the stone in the water and record its weight. Does it weigh the same as in air'? Collect the displaced water and determine its weight by subtracting the weight of the bucket from the weight of the catch bucket and water
Explain what Diffusion is? Diffusion, we learnt is a simple process of movement of individual molecules from one region to another. Figure illustrates passive transport where m
Explain the Process of Hearing The ears, as we all know, are sense organs for hearing. The ear consists of an external ear, a middle ear and an internal ear. It houses receptor
Holding water in a sieve Pour some oil over the wire mesh of a kitchen sieve and shake out the overload so that the holes are open. Cautiously pour water into the sieve from a
Transport: River Valley civilisations were characterised by settlements along the rivers and growth of cities which needed, among.other things, stones and wood from distant
Experiments with man in space: We have already discussed the usefulness of space flights in Blocks 3&4. One is able to make astronomical observations from satellites; get met
PRECAUTIONS FOR FIRE PREVENTION : In the event of fire or explosion occurring there should be a prearranged plan of the necessary action to be taken. All personnel must be made aw
To show the differences in soil particles Secure some glass jars that hold about half Gallon or two litres of water. Place various handfuls of soil in a jar. Fill the jar with
Gloves : Gloves should be worn when transferring toxic, radioactive and carcinogenic compounds, irritants and corrosive liquids. The practice of wearing rubber gloves continuously
how is metal tyre fitted onthe wheel of bullock cart
What are the ratios allowed for three year olds and Child Care Centers in Colorado and what is the citation of the rules that addresses ratios?
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