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| Summary |
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 Science is the way by which a person gets at the truth or at least as close to truth as possible. |
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The basis of science is its orderly stepwise procedure - the scientific method. |
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Scientific method employs various procedures such as, accurate observation, asking questions about the observation and finding out possible answers to formulate a hypothesis. |
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Whether the hypothesis is right or wrong can only be decided by putting it to a test or experimenting. It requires scientific skill, careful collection of data, their analysis and interpretation. |
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Any experiment conducted without running a control becomes invalid. |
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If a hypothesis is experimentally proved and tested by repeated experiments, it is changed into a theory. |
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A theory may or may not be approved by scientists. It may be subjected to modification as more and more additional information is gathered. |
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Supporting a theory with more and more evidences helps in deriving a law. |
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Science is not just a subject of study confined to laboratories or classrooms, but it forms a part of our daily life. It helps us to develop a scientific temperament. |
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A large number of tools and techniques have been developed in the field of biology enabling us to study all the finer aspects of life. |
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Much of the information on life processes has come from the studies made with the help of electron microscopes. |
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Several sophisticated techniques like chromatography, histo- chemistry, X-ray diffraction etc. have helped in understanding life processes. |
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