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From a chromatography lab designed to solve a mystery to puzzle races, these activities get high school students talking—while doing science.
Chapter 18 (Wastewater Story) of CBSE Class 7 Science NCERT Book (PDF) is available here for download in PDF format. Download now and prepare for CBSE Class 7th Science exam.
Chapter 16 Water: A Precious Resource (PDF) of Class 7 Science NCERT Book is available here for download in PDF format. Download now and prepare for CBSE Class 7 exam.
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