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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 sun is formed on a piece of white cardboard placed a short distance from the eyepiece lens. If sun spots are there on the surface of the sun you may be able to observe them as small dark spaces of irregular outline on the image. Caution. Do not look at the sun by the telescope, unless your eyes are protected by a dark glass filter.
A solid compound whose internal structural pattern is expressed as plane faces that can be seen with the unaided eye is generally called as a: Crystal
Explain the Types of White Blood Cells White blood cells are actually a whole collection of different cells that work together to destroy bacteria and viruses. You may recall s
Why are clouds White? Why does a day have 24 hours? Answer: A cloud is a visible accumulation of very tiny water droplets or solid ice that float in the air. Clouds are usuall
Pantothenic acid (vitamin B5) Pantothenic acid, also known as vitamin B5, is essential to all forms of life. Pure pantothenic acid was first isolated as its calcium salt
Explain the Posterior Nerve Root Posterior nerve root consists of sensory nerve fibres, having cell bodies in root ganglions and enter the spinal cord. Immediately after emergi
How to mount fossils If you occur to live in a locality where fossils are plentiful, it will be interesting to have the peoples make a fossil collection for the school museum.
Placement of First Aid Box : All first aid equipment should be placed close to the sites where accidents are likely to occur. The location of first aid boxes should be such that t
Explain Presence of Foodstuffs - Movements of Gall Bladder Presence of foodstuffs: Fatty foods particularly cream, fatty acids and proteins to a less extent, stimulate the cont
describe history of science
Explain the Process of Filtration - Formation of Urine The kidneys form urine in three phases: simple filtration, selective re-absorption and secretion. Let us begin with the p
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