Autobiography of a tree

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  • Topic: Science, Science education, National Science Teachers Association
  • Pages : 188 (63460 words )
  • Download(s) : 3459
  • Published : November 19, 2013
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700 SCIENCE EXPERIMENTS FOR EVERYONE
COMPILED BY UNESCO
Would you like to create a cloud in a bottle? Prove that the earth spins? Run a telephone next door? Keep a thriving ant colony? Weigh the atmosphere? Make your own soap? Identify fossils?
These are only a few of the more than 700 simple, safe, and exciting experiments that will help you to discover and understand many fascinating, scientific facts about the wonderful world in which we live. Some of these projects will take you no more than a single morning; others will keep you and your friends busy for months, at home or at school. Compiled by a team of American, British, and French science instructors under the auspices of UNESCO in Paris, this latest edition features new sections on Optical Projection, Electricity, and Chemistry, in addition to enlarged chapters on Astronomy, Magnetism, Geology, Physiology, and many more! (continued on back flap) The United Nations Educational, Scientific, and Cultural Organization

Each chapter offers approximately 50 related experiments, with brief, easy- to-follow instructions and clear “how- to” diagrams. This edition also tells you exactly what materials you will need for each experiment and where to get them. The materials are inexpensive and easy to find. Many are probably in your home or garage, and the others you can get at your neighborhood market, drugstore, or hardware store.

If you are curious about how things work, why they grow, how they live, and what they are made of—in other words, if you have the same everyday curiosity that motivated such scientific pioneers as Archimedes, Galileo, Newton, and Darwin—700 SCIENCE EXPERIMENTS FOR EVERYONE is the book for you. For these experiments will not only answer practically every question you might have on the natural and life sciences, they will teach you the scientific approach to problems you may want to solve on your own and show you the methods for solving them. Above all, you will learn that the study of science can be exciting, useful—and lots of fun!

IMPORTANT NOTE TO PARENTS, TEACHERS, BOYS AND GIRLS
This book was originally prepared for use as an instruction manual by teachers, where a certain level of experience, precaution, and discretion are presumed. A number of experiments in this book, although totally safe if properly prepared and wisely handled, could prove dangerous to the inexperienced or careless experimenter. Any experiment involving fire or explosive reactions should be approached with the greatest of caution and protection.

Be careful where you find or purchase materials so that you don’t end up using defective, and therefore dangerous, materials.
Good scientists are methodical and excruciatingly careful. Please be one. In the interest of safety several experiments published in the original edition of this book have been deleted.

Introduction
Science is perhaps unique as a subject in the curriculum of schools all over the world. This uniqueness results from the variety of materials and experiments necessary for its effective teaching. Most other subjects can be learned if ordinary tools are available, such as pencil, paper, blackboard, textbooks and a few supplementary aids. These are also essential for the teaching of science but, if they are the only tools, science becomes a dull and uninteresting subject.

If it is to be learned effectively science must be experienced. It must be learned and not learned about. Science is so close to the life of every boy and girl that there is no need to confine its study to the reading of textbooks or listening to lectures. Wherever you may go in the world, science is an intimate part of the environment—living things, the earth, the sky, air and water, heat and light and forces such as gravity. No teacher need ever be without first-hand materials for the study of science. Good science teaching must be based on observation and experiment. There can be no substitute for these. But performing...
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