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Making a 'gusher' with compressed air
Secure a large narrow-necked bottle like as is used for soda water. Place a single-hole stopper in the bottle. By the stopper put a 10- cm length of glass tube which has been drawn to a jet on the outside end. With a short length of rubber tube join a length of glass tube that will extend nearly to the bottom of the bottle. Fill the bottle about half full of water. Insert the stopper firmly and hold it in with your fingers. Next blow hard into the bottle; and when you free the pressure, point the bottle away from you. What happens?
what is the process of komodo dragon when reproducing by parthenogenesis
Release of Energy : When the atom splits, the masses of the fragments and the neutrons produced do not add up to the mass of the original. A tiny amount of matter disappears. Th
what is diffusion.
how the metal tyre is fitted on the wheel of a bullock cart?
Microbes: You should know that invisible microbes are present everywhere, because they can surviveeven under very inhospitable conditions. They are all around us, in the air
Use of natural resources: you studied about various natural resources such as land, water, soil, minerals etc. You know that these resources are limited and precious. Therefore
Dental Clinic Case Study A clinic with three dentists and several dental hygienists needed a system to help administer patient records. This system keeps patient details and m
Explain the Nerve Roots Each nerve is attached to the medulla spinalis by two roots, an anterior or ventral, and a posterior or dorsal. The anterior nerve root consists of moto
Labels and Packaging's : In order to minimise the hazards associated with using a particular substance it is necessary to know what the precise dangers are. The label on the conta
DISPOSAL OF WASTE MATERIALS : In a school or college science laboratory, chemical wastes, broken glassware, unserviceable non consumable items, obsolete instruments, used biologic
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