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Air expands when heated
To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glass tubing or a soda straw by it. Place the end of the tube in a small bottle of water. Heat the flask and view what happens. Heat the flask until a considerable amount of air has been separated and then cool the flask by pouring cold water over it or by rubbing with a piece of ice.
Explain the Foetal Monitoring During late pregnancy and during labour, a physician may want to monitor the foetal heart rate and other functions. Foetal heart rate monitoring i
if a population of deer found a new food source in there ecosystem what would be the most likely outcome
Flammable Solids : Flammable solids are substances which are flammable or liable to spontaneous combustion or emit flammable gases on contact with water. Examples are: camphor, ci
Non-Specific Defence Mechanism The non-specific defence mechanism is implemented for different types of infections. It resists infection in two ways, firstly, by blocking the e
what is the passage for both air and food ?
In Pursuit of Starlight: The easiest method of studying light from a cosmic object is to collect it through a telescope and record it on a photographic plate. photographic plat
factors which decide the broad area of scientic activity
During which equinoxes are day and night of equal length around the world: Autumnal And Vernal Equinoxes
Science in the post-renaissance period (1540- 1760): We have seen above that improved techniques as well as growing trade had led to great voyages to many lands. These were
Explain the Structure of Tongue The tongue is a muscular organ. It is covered with a mucous membrane. The tongue is attached by its base to the hyoid bone and by a fold of its
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