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Dissecting simple flowers
Label each of five cards or pieces of White paper with one of the following words: stamens, pistil, petals,sepals, receptacle. Dissect a flower carefully and place the parts gently on the appropriate cards .
Some flowers can be pulled apart quite easily but a knife or scissors may be needed for others kind of flower. When we have a sufficient number of flowers available this exercise is most Important as an individual pupil activity. Simple flowers with a single row of petals should be selected.Pick up one of the stamens and rub the anther lightly across a piece of black paper. Traces of pollen will usually be seen by you.Cut the ovary crosswise with a sharp knife gently and count the ovules or "seed pockets". Look for traces of seeds in the ovules
Measuring atmospheric pressure with a rubber sucker The force needed to pull the sucker away from a smooth surface can be found by using a spring balance. The area on which the
Water pressure changes with depth Use the funnel and manometer which you made in the last experiment. Fill a tall glass jar or pail with water. Calculate the pressure just belo
Architecture: The architectural style of India underwent a drastic change after the Turkish conquest. The Sultans and their nobles insisted on having arches and domes and com
Ask question how many years that our earth survived?#Minimum 100 words accepted#
Explain the Vasomotor Centre and Cardio-Inhibitory Centre The vasomotor centre (in the medulla ablongata) excites the respiratory centre. The pulmonary ventilation is increased
Transport of Bulk Chemicals : Ideally only sufficient concentrated acids, flammable solvents and other hazardous chemicals should be kept in the laboratory for immediate requireme
Question 1 Discuss the efforts introduced to manage of air and water pollution Question 2 Comment briefly on agricultural practices in Arid zone Question 3 Anal
What do all optical instruments and devices have in common?
Social and economic impact of modern communication technology: Quite obviously a society which will utilise advanced communication technology in the ways mentioned above, woul
Polysomnography is a health care field with strong technical applications. To be effective, sleep technicians must have a strong health care background and be able to identify tech
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