The Ever-Evolving World of Science
This opening chapter of the Class 7 NCERT Curiosity textbook, Chapter 1, traces how science grows through curiosity, questioning and evidence. It recalls how early humans explained day and night, seasons and disease through stories, and how careful observation, measurement and experiment replaced guesswork with tested ideas. Learners discover the difference between belief and evidence, see how tools such as lenses and thermometers sharpened inquiry, and understand that scientific ideas keep changing as new discoveries arrive.
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