{
  "@context": "https://schema.org",
  "@type": "Book",
  "id": "pctb-general-science-8-en",
  "board": "PCTB",
  "boardName": "Punjab",
  "boardFull": "Punjab Curriculum and Textbook Board, Lahore",
  "class": "8",
  "classSort": 8,
  "subject": "General Science",
  "medium": "English",
  "pages": 169,
  "sizeMB": 37.8,
  "textTier": "scanned",
  "producer": "Foxit PhantomPDF Printer Version 9.7.0.2220",
  "file": "pctb-punjab/class-8/general-science-8-en.pdf",
  "year": null,
  "acquired": "2026-08-21",
  "sha256": "bb32e8effa75852c34f25b8fe29a03afdc1496fd01c977d04554ab5256849798",
  "title": "8th Class General Science (UM) Textbook in PDF by Punjab Board",
  "sourceUrl": "https://www.taleem360.com/download/8th-class-general-science-um-textbook-in-pdf-by-punjab-board-bqr",
  "scores": {
    "A1": 1,
    "A7": 5
  },
  "evidence": [
    {
      "id": "e01",
      "lens": "gender",
      "axis": "A7",
      "score": 5,
      "kind": "observation",
      "page": null,
      "pageBasis": "PDF page index",
      "tier": "english-ocr",
      "text": "All 8 female tokens are OCR garbage or he/she; true ≈0.05 (§1.3b)"
    }
  ],
  "curriculum": "SNC 2022",
  "edition": "2022-23",
  "editionNote": "Single National Curriculum 2022, Experimental Edition",
  "note": "Twelve chapters that overlap substantially with the other boards' class-8 books but reorder the front of the volume to lead with Ecology, add a Periodic Table chapter, and again carry the Punjab-only Technology in Everyday Life. Biotechnology is a full chapter and well populated (37 mentions), and climate content is solid. A1 is 1 - a bismillah and nothing else. A7 is 5 on absence, and here the number itself is a trap worth flagging: the raw ratio of 0.211 is fabricated by OCR noise, since all eight apparent female tokens are garbage strings or he/she generics, and the true value is nearer 0.05. No other axis was assessed for this volume.",
  "_license": "CC BY 4.0 — attribute to the Textbook Evidence Project.",
  "_note": "Scores are measured properties of text, not verdicts. Read /method/ before using them.",
  "_canonical": "/books/pctb-general-science-8-en/"
}