कुछ खोजें कुछ बनाएं: Let's Put Things Together (Hindi Text With English Translation)

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Item Code: NAG782
Author: Lalit Kishore, Anvar Zafri
Publisher: National Council for Science and Technology Communication, New Delhi
Language: English
Edition: 2009
ISBN: 817272005
Pages: 70
Cover: Paperback
Other Details 9.5 inch X 7.0 inch
Weight 150 gm
Fully insured
Fully insured
Shipped to 153 countries
Shipped to 153 countries
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More than 1M+ customers worldwide
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100% Made in India
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23 years in business
Book Description
Foreword

For an inquisitive child, one with a sparkle of curiosity still left in him/her, the doit yourself experiments described in the accompanying pages would mean an excit ing experience.

Some children would be able to go through all the experiments with the help of the picture and the description given in each case; some others may be able to do most of them by themselves and the remaining ones with a little bit of help. The idea, however, is not to stop with this book let, but to begin with it and go on to design ing newer experiments, improvising new things, not just with straws, but with any easily and readily available lowcost, or waste materials lying about in the house.

This is not a very difficult proposition, provided one has understood the philosophy, internalised the methodology and grasped the underlying scientific principles behind the experiments/activities presented here; they are, therefore, not meant as an end in themselves but as a catalyst or a trigger to let loose the child's imagination, creative instincts and abilities to innovate and improvise.

The doityourself publications of NCSTC allow each child to work at a pace that suits him/her. And the most important part of all this is that children would enjoy and have fun doing things with their own hands and also learn a great deal in the process.

Preface

Science can be best learned by doing it. It is a common observation that in our schools there is a lot of emphasis on content teaching and memorisation of scientific facts which makes science instruction a drab and dry affair. Science instruction can be made interesting by incorporating elements of the scientific process in it. This can be achieved through lowcost, open ended and investigative projects in science.

If a science teacher is a little resource ful, a lot of processbased science experiences can easily be imparted to students using inexpensive and readily available materials. It is through experimentation and learning bydoing activities, that science related values can be fostered among students.

Investigative and openended experi. ments give students a first hand feel of the process of science and scientific principles. Such experiments put the student in the role of scientist who designs experiments, makes observations, interprets ob servations and draws conclusion.

Through this handbook an attempt has been made to make science instruction in teresting by giving some sample investiga tive science projects and demonstrations.

It is hoped that school children and science teachers will gain an insight into the process of science by doing the science projects given in this handbook in the right spirit.

Contents

1STRAW MICROBALANCE9
2LAW OF MOMENTS11
3HOW STABLE CAN AN OBJECT BE13
4CENTRE OF GRAVITY AND STABILITY15
5THE DANCING MARBLE: ELASTIC COLLISION17
6CATCH A FIVE RUPEE NOTE: REACTION TIME AND FREE FALL19
7ACTIONREACTION PRINCIPLE21
8UPTHRUST OF LIQUIDS23
9WIND VELOCITY25
10STRAW PRESSURE GAUGE27
11STRAW EVAPORATION GAUGE29
12A STRAW HYDROMETER31
13IS THERE WATER IN YOUR MILK: A LACTOMETER33
14TRANSVERSE WAVES MODEL35
15RESONANCE37
16STRAW SAXOPHONE39
17RAINBOW IN YOUR HOUSE: STRAW ELECTROSCOPE41
18STRAW ELECTROSCOPE43
19INVISIBLE FORCES: MAGNETIC INTERACTION45
20MAGNETIC NORTH IS NOT THE TRUTH NORTH47
21WATER CAN AND LIQUID PRESSURE49
22THREE LOVING SISTERS51
23THE MONKEY PUZZLE53
24ROTATING MARBLE IN A BUTTOMLESS CUP55
25WEIGHTLESSNESS57
26FIFTY PAISE TO MAKE YOU THINK59
27FLOATING STONE ON WATER SURFACE61
28BURNING CANDLE INSIDE WATER63
29THE LAZY COIN65
30THE DISOBEDIENT CORK67
31g' DROPPING OF MARBLES69
Sample Page



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