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

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

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Book Specification

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

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

1 STRAW MICROBALANCE 9
2 LAW OF MOMENTS 11
3 HOW STABLE CAN AN OBJECT BE 13
4 CENTRE OF GRAVITY AND STABILITY 15
5 THE DANCING MARBLE: ELASTIC COLLISION 17
6 CATCH A FIVE RUPEE NOTE: REACTION TIME AND FREE FALL 19
7 ACTIONREACTION PRINCIPLE 21
8 UPTHRUST OF LIQUIDS 23
9 WIND VELOCITY 25
10 STRAW PRESSURE GAUGE 27
11 STRAW EVAPORATION GAUGE 29
12 A STRAW HYDROMETER 31
13 IS THERE WATER IN YOUR MILK: A LACTOMETER 33
14 TRANSVERSE WAVES MODEL 35
15 RESONANCE 37
16 STRAW SAXOPHONE 39
17 RAINBOW IN YOUR HOUSE: STRAW ELECTROSCOPE 41
18 STRAW ELECTROSCOPE 43
19 INVISIBLE FORCES: MAGNETIC INTERACTION 45
20 MAGNETIC NORTH IS NOT THE TRUTH NORTH 47
21 WATER CAN AND LIQUID PRESSURE 49
22 THREE LOVING SISTERS 51
23 THE MONKEY PUZZLE 53
24 ROTATING MARBLE IN A BUTTOMLESS CUP 55
25 WEIGHTLESSNESS 57
26 FIFTY PAISE TO MAKE YOU THINK 59
27 FLOATING STONE ON WATER SURFACE 61
28 BURNING CANDLE INSIDE WATER 63
29 THE LAZY COIN 65
30 THE DISOBEDIENT CORK 67
31 g' DROPPING OF MARBLES 69
Sample Page




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