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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
solar system At night you can see very many stars in the sky. But during the day, only one star is .visible, and that is the Sun. This is not because there is anything extrao
who do u put a neddle thrwew a ballon
The industry dealing with hazardous materials should draw emergency disaster plan. Safety committees consisting of workers and management are required to review from time to tim
Scientific Chemistry: The Arab doctors, perfumers and metallurgists made their greatest contribution in chemistry. This was mainly due to the fact that Arab scholars, unlike
Life in the Oceans: Oceans are known as the largest and the thickest ecosystem. Tiny plants and animals exist in it, in immense numbers. A cubic meter of sea water may contain
Disposal of Chemical Wastes : We shall deal with some commonly occurring chemical wastes. If you need to know more details covering the disposal of a wide range of chemicals, you
Question: a) How does temperature changes in the stratosphere? Give a physical explanation and illustrate your answer using a diagram. b) Write a short note on ozone in the
Fractures : It is not our intention to introduce you to many types of fractures that can occur or all the ways a first aider might deal with them. The essential thing is that you
general characters and classification of porifera
Making a precision reflecting telescope It is fairly beyond the scope of this book to include the intricate details for mirror grinding and testing. Though, some teachers may w
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