Comprehensive Science Activities Vol.I Class-IX

Comprehensive Science Activities Vol.I Class-IX Comprehensive Science Activities Vol.I Class-IX Sample PDF Download
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Publisher: Laxmi Publications
ISBN: 9788131808184

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PREFACE Dear students, In this age of nail-biting competition, it really helps to be well equipped in subject knowledge in order to break the ice in the competitive area. So, while the market is flooded with numerable repetitions of book which mars your intellectuality and competency. We have endeavoured to reach out to your widen examination needs in this edition. Keeping in mind the broader comprehensive needs of subject knowledge we have put in our best efforts in this book. Science is learnt best by doing. We can understand the principles of science by doing experiments. Therefore, the practical work in laboratory is an essential part of the student s life. Special features of this practical book are It is strictly in accordance with the latest syllabus CCE for IXth class prescribed by C.B.S.E., New Delhi. Subject matter is presented in simple and lucid manner. Properly labelled diagrams are provided in experiment. Sufficient theory is provided at the beginning of each experiment. Tables are given for direct recording the observations. Precautions are given for each and every experiment. The procedure required for each experiment is written in an orderly. Viva-Voce questions and Multiple Choice Questions with answers are given in Volume II. We sincerely hope that the present book will prove to be more useful for the students in their practical class. Although we have taken care and laid down all efforts to remove any discrepancy which might have crept in, yet criticism or suggestions are always soliciated from your end. Thanking you in anticipation for your co-operation. Authors
FIRST TERM Practical should be conducted alongside the concepts taught in theory classes 1. 2.
5. 6. 7. 8. 9. 10.
LIST OF EXPERIMENTS To test a the presence of starch in the given food sample b the presence of the adulterant metanil yellow in dal To prepare a a true solution of common salt, sugar and alum b a suspension of soil, chalk powder and fine sand in water c a colloidal of starch in water and egg albumin in water and distinguish between these on the basis of