101+10 New Science Games: Learning science with fun
By Ivar Utial
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About this ebook
Supplementary science books not only interest and excite young students,but also stimulate their interest in the subject. This exciting book shows you how to have fun with 101 Science Games. There is little doubt that science experiments can be quite interesting and useful in discovering mysteries of nature.In fact,it is the science that has led man from the lantern and the bullock-cart age to Electronics and Supersonic Jet age. The book is fully illustrated with step-by-step instructions to give you hands-on experience of making simple scientific equipments like:
*Telescope
*Barometer
*Hectometer
*Model Electric Motor
*Electroscope
*Periscope
*Steam Turbine
This project-work will acquaint you practically with the basic principles of specific applications. Now, you too can prepare for your next science fair.
Ivar Utial
Ivar Utial has been writing on variety of subjects like science, scientific experiments and games. His books are very popular with children of all ages.
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101+10 New Science Games - Ivar Utial
Delhi-110091.
101 SCIENCE GAMES
1. Break Thread at Will
2. Join glasses with Air!
3. Where has so much of salt gone ?
4. Which side the stick would fall ?
5. Sparrow—in or out ?
6. Cold Water—heavy. Hot—light
7. Hot air light—cold heavy !
8. Flame extinguishes. Water rises
9. No rusting without oxygen
10. Carbon dioxide—the enemy of fire !
11. Pharaoh’s Serpent
12. A small job but not that easy !
13. Peel banana automatically !
14. Apples attract each other !
15. Dancing Pencil !
16. Wow. what a see-saw !
17. Funny Diver !
18. Smoke goes down !
19. The Umbrella dance !
20. Magic Butterfly !
21. Colourful convection currents !
22. Colour absorbs heat !
23. Matchstick with sweet-tooth !
24. Test of strength !
25. Expand iron with heat
26. Science becomes your gardener
27. Parrot, back to cage !
28. Optical illusion creates confusion !
29. Wow, what an air-gun !
30. Water boils without fire 1
31. Immersed in water but still dry J
32. The Secret of candle flame !
33. Ice with boiling water
34. Water that boils instantly !
35. Water boils in a Paper Pot
36. Soap-driven boat !
37. Pulse moves pin !
38. Cut glass like cardboard !
39. Break a bottle—make a tumbler !
40. Pretty garden—without plants !
41. A bottle full of ferns !
42. Reactions galore with common salt !
43. Picture made by Fire
44. Mystery sketch
45. Picture made by Fog !
46. Everything fire-proof
47. Write with the help of fire !
48. Writing that Disappears !
49. Flames of different colours !
50. Flower—from colourful to colourless !
51. Coloured solution without colours !
52. Storm inside the house
53. Copper plating on iron piece
54. Astrologer that predicts weather !
55. Weather forecast !
56. Fish that drinks oil
57. Magic Pictures !
58. Dancing doll !
59. Paper snake
60. Diving Mothballs !
61. Merry-go-round
62. Box that comes back on its own 1
63. Acrobat on Wire
64. The Dancing couple
65. Naughty Doll
66. Swinging Candle !
67. Steam Boat
68. Fireproof hammock !
69. Acrobatic egg !
70. Egg—neither floats nor drowns !
71. Boat of Paper ! Engine of Egg 1
72. The Swollen Egg
73. Egg—boiled or not ?
74. Steam-driven merry-go-round !
75. Obedient and naughty eggs !
76. Boomerang
77. Home-made Telephone !
78. Water balance 1
79. The Test-tube Balance
80. Atomizer
81. Hying Balloon
82. An indoor rainbow !
83. Automatic fountain 1
84. The magic fountain !
85. Unique approach to photo printing !
86. Make ‘misri’ at home
87. Make oxygen on your own
88. Home-made Plaster of Paris
89. Make copper sulphate at home
90. Make distilled water at home
91. Electromagnet
92. Handmade cell
93. Weather Forecast with Barometer !
94. Compass
95. Electroscope
96. Kaleidoscope
97. Periscope
98. Home-made Hectograph
99. Steam Turbine
100. Your own telescope
101. Model of Electric Motor made of nails
1
Break Thread at Will
Articles Required: One thick book, a long piece of fine thread.
Divide the thread into two parts. Take one part, and hang the book from it and tie the other part to the underside of the book, as shown in the figure here.
Now you ask a friend if he can break the thread from above or below the book as per wish just by pulling the lowermost end only, he wouldn’t know what to say. But when you assure him that it is possible and the thread can be broken from either side at one’s wish, he would be left wonderstruck.
To do this, there is just a simple hand trick. If you have to break from the upper part first pull the thread downwards and gradually increase the pressure. But if it’s to be broken from the lower part you just have to give it a sharp tug and only a small piece of thread will remain in your hand. The inertia of the book prevents the force produced by jerk from reaching the top and as a result, the thread breaks from below the book only.
2
Join glasses with Air!
Articles Required: Two glasses, rubber ring, paper and matchstick.
Air acts as quickfix? How funny! Perhaps there is some misunderstanding. Well, here you can join, not broken pots as with quickfix but two glasses with air. And if you want to separate them, you can do that too at your will !
For this experiment, you require a right-sized rubber ring that would fit weli on the glass. First, take one glass and drop a lighted piece of paper into it. Before the paper burns out, invert the other glass on top and put the rubber ring in between. By the time the paper has burnt out, the glasses would be joined together. Now if you pick up the top one only, the bottom glass would also come up with it. Yes, they’ve got joined—simply with air I
Do you know how? The oxygen present inside the glasses is used up in the burning of paper-leading to decrease in air pressure. Outside, the air pressure is greater and acts on the glasses forcing them to stay together.
3
Where has so much of salt gone ?
Articles Required: A glass of water, a salt-celler full of salt, a fine sieve.
Take the glass and fill it with water upto the brim. Now if you put a heaped tablespoon of salt in it, do you know what would happen? No, probably you can’t answer until you try it yourself. You’ll be amazed to see that all the salt gets dissolved without spilling even a drop of water.
Hold the sieve above the glass and start sifting salt into it. Make sure that the salt is absolutely dry. As more and more salt goes into the glass, the solution’s volume would appear increasing. But it will happen very slowly. In fact, the total volume of the salt solution would always be much lesser than the combined volume of the salt and water separately. Do you know where the extra salt goes?
Like other compounds and elements, water is also made up of a certain arrangement of molecules. These molecules freely move about leaving sufficient space between them. When the salt is dropped into water, the sodium and chlorine atoms fill these spaces and prevent the volume of water from increasing and the water doesn’t spill out of the glass.
4
Which side the stick would fall ?
Articles Required: A 70-80 cm. long stick.
Perhaps to begin with you might not enjoy this game, but don’t worry, as it’s one of the most interesting games in the entire book. So, let us begin. O.K.? Close your fists in such a way that your forefingers extend forward. Now, as shown in the figure here, place the stick on these fingers—with one end of the stick extending a little more on one side than on the other. While demonstrating to the friends ask them if the fingers are slowly brought together on which side the stick would fall. Everyone would say the same thing i.e. it would fall on the side from which a bigger part of the stick protrudes. Not just them, aren’t you also thinking on