Comprehensive Practical Science Class-X

Comprehensive Practical Science Class-X
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Comprehensive Practical Science Class-X

Publisher: Laxmi Publications
ISBN: 9788131808214

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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 numerous repetitions of books which mar 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. Present book, Comprehensive Practical Science for Class X is strictly based on the new CBSE syllabus and NCERT course curriculum framework. An honest effort has been made in this book to attain underlying objectives of syllabus, such as developing problem solving and decision making skills understanding and appreciating the joint enterprise of science, technology and society acquiring process skills which form part of the attitude for developing a scientific temper developing certain manipulative skills which are required in day-to-day life situations, etc. This practical book covers required practicals prescribed in the new syllabus in all the science disciplines i.e., Physics, Chemistry and Biology. Multiple Choice Questions are also added with each practical to attempt well in Multiple Choice Written Test for testing practical skills. Thus, this book fully covers the Scheme of Evaluation. CBSE has recommended examinations for Science Practicals for Class IX and X as given below 1. Termwise examination First term from 1st April to 30th September, Second term from 1st October to 31st March . 2. Hands on practical examination will be conducted through formative assessment once in every term. This includes i Experiment set up ii Observation iii Record of observation data iv Analysis of observation v Conclusion Inference drawn by the student vi Practical Record File vii Viva. 3. Assessment of Practical Skills through MCQs will be in every term end summative assessment. Some of the salient features of the book are Practical exercises are strictly according to the New CBSE Curriculum. Experiments are given termwise. Practical Exercises Experiments are dealt very methodically i.e., according to scientific method process or and pattern approved by the eminent experts. SI units are used where necessary. Use of locally available required materials have been suggested, as far as possible, for conduction of experiments in the local laboratories. Multiple choice questions related to experiment theory of the practical principles are given at the end of each experiment to test practical skills. Categories of Practical Skills are given after the list of experiments. According to marking scheme issued by the CBSE, Sample Question Papers have been given at the end of experiments of each term. Although I have taken care and laid down all efforts to remove any discrepancy which might have crept in, yet criticisms or suggestions are always solicited from your end. Thanking you in anticipation for your co-operation. Please do write to author or our publishers wishing for your success. Authors ix
SYLLABUS PRACTICALS CLASS X Practical should be conducted alongside the concepts taught in theory classes
FIRST TERM 1. To find the pH of the following samples by using pH paper universal indicator. a Dilute Hydrochloric acid b Dilute NaOH solution c Dilute ethanoic acid solution