+2 / 12th chemistry Practical materials -Organic chemistry Topic- Qualitative Analysis Prepared by E.Muthuswamy, Nagarkoil

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Topic- +2 / 12th chemistry  Practical  materials -Organic  chemistry 

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12th chemistry practical 

Science (from the Latin word scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.

The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3500 to 3000 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes