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| Introduction |
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| Humans have always been curious about the world around them. The world has an astonishing variety of materials and bewildering diversity of life and behaviour. The inquiring and imaginative human mind has responded to the wonder and awe of nature in different ways. This human endeavour led, in course of time, to modern science and technology. |
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| The word science originates from the Latin word 'scientia', meaning 'to know'. The knowledge which man has gained through observations and experiments, when organised systematically, is called science. |
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| The sciences which deal with non-living things are called physical sciences. Examples of physical sciences are physics, chemistry, geology, geography, astronomy, astrology and oceanology. |
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