Do you have a project-assignment fron your physics teacher and do not know where to begin? Or, you have to participate in a Science Fair,and you wish to surprise everyone with a revolutionary chemistry model? Or, you simply wish to experiment with new concepts of physics,electronics,biology and chemistry? This revised book and the free CD contains 71+10 new projects on Physics, Chemistry, Biology and Electronics. The purpose of the book and CD is to ensure simple explanations of these 81 Science Projects done by Secondary and Senior Secondary students. This book will be a useful guide in the preparation of project work for students participating in science exhibitions. At the end, the book features many additional projects to work upon. Highlights: *Making an automatic Electric Alarm. *Making a Railway Signal. *Making an Astronomical Telescope. *Producing electricity from potatoes. *Making the Morse Code. #v&spublishers
Contents:
1. Making and controlling a diver
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5. Making a weather-indicating flower
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10. Making a spinning snowman
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15. Making an air thermometer
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20. Making an astronomical telescope
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25. Making a polarimeter
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30. Making traffic lights
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35. Making an electric motor
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40. Making an electric quiz board
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45. Making a Morse code for sending messages
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50. Making an electronic timer
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55. Making a radio set (using a semiconductor)
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60. Finding the composition of water by electrolysis
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65. Demonstrating the destructive distillation of wood
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70. Demonstrating the feeding of yeast on sugar
71. Demonstrating the phenomenon of photosynthesis
72. Making an automatic cut off timer
73. Making a direction indicator arrow
74. Making a lie detector based on the changes of skin resistance
