General Science Class 8 is part of the official Punjab Curriculum and Textbook Board (PCTB) syllabus prescribed for Class 8 students across Punjab. Based on the Single National Curriculum (SNC) 2022, this textbook is used in PCTB-affiliated schools and covers all major branches of science — biology, chemistry, and physics — in a single integrated course.
Class 8 students preparing for their Punjab Board annual exams can download this General Science PCTB textbook in PDF format for free. The book includes 12 well-structured units covering ecology, the human nervous system, chemistry, physics, and technology — providing a complete resource for exam revision, concept building, and board exam preparation.
Book Overview
- Class: 8
- Subject: General Science
- Board: Punjab Curriculum and Textbook Board (PCTB), Lahore
- Edition: SNC 2022
- Publisher: Punjab Curriculum and Textbook Board, Lahore
- Authors: Dr. Saman Jamil, Zafar Mehdi Zafar, Faiz Hussain, Qaiser Saleem (Late), Atta Dastgeer, Muhammad Anwar Sajid, Abdul Rauf Zahid, Robeela Shabbir
- Language: English
- Total Units: 12
- Format: PDF
Chapter List
Unit 1: Ecology
This unit introduces students to the study of ecosystems, food chains, food webs, and the relationships between living organisms and their environment. Students learn about biotic and abiotic factors, energy flow, and the importance of maintaining ecological balance in nature.
Unit 2: Human Nervous System
Students explore the structure and function of the human nervous system, including the brain, spinal cord, and nerves. The unit covers how nerve impulses are transmitted, the role of sense organs, and how the nervous system coordinates body functions and responses to stimuli.
Unit 3: Variation, Heredity and Cell Division
This unit covers the principles of heredity and genetic variation, including how traits are passed from parents to offspring. Students learn about chromosomes, DNA, types of cell division (mitosis and meiosis), and how genetic variation contributes to the diversity of life.
Unit 4: Biotechnology
An introduction to biotechnology and its applications in medicine, agriculture, and industry. Students explore how modern science uses biological systems and living organisms to develop new technologies, including genetic engineering, fermentation, and the production of medicines and food products.
Unit 5: Periodic Table
Students study the periodic table of elements — its structure, organization, and the patterns of properties across periods and groups. The unit explains how elements are classified by atomic number, how to read the periodic table, and the significance of periodic trends in chemistry.
Unit 6: Chemical Reactions
This unit covers types of chemical reactions, how to write and balance chemical equations, and the factors that affect reaction rates. Students learn about exothermic and endothermic reactions, oxidation and reduction, and how chemical reactions are used in everyday life and industry.
Unit 7: Acids, Bases and Salts
A detailed unit on the properties, uses, and reactions of acids, bases, and salts. Students learn about the pH scale, indicators, neutralization reactions, and the role of acids, bases, and salts in daily life — from household cleaners to digestive processes in the human body.
Unit 8: Force and Pressure
Students explore the concepts of force, pressure, and their applications in physics. The unit covers Newton’s laws of motion, the relationship between force and pressure, atmospheric pressure, Pascal’s law, and how pressure principles are applied in hydraulic and pneumatic systems.
Unit 9: Reflection and Refraction of Light
This unit covers the behavior of light when it bounces off surfaces (reflection) and bends when passing through different media (refraction). Students learn about the laws of reflection and refraction, mirrors, lenses, total internal reflection, and the applications of optics in everyday technology.
Unit 10: Electricity and Magnetism
Students study electric current, circuits, resistance, and the relationship between electricity and magnetism. The unit covers Ohm’s law, series and parallel circuits, electromagnetic induction, and the principles behind electric motors and generators — connecting theory to real-world applications.
Unit 11: Technology in Everyday Life
An applied unit exploring how science and technology shape modern daily life. Topics include information and communication technology, automation, medical technology, and the environmental impact of modern tech. Students are encouraged to think critically about the role of technology in society.
Unit 12: Our Universe
The book concludes with an exploration of our universe — the solar system, stars, galaxies, and the scale of space. Students learn about the formation of the universe, types of celestial objects, space exploration, and Pakistan’s role in the global scientific community through its space programs.
Download General Science Class 8 PCTB PDF
Click the button below to download the General Science Class 8 PCTB SNC 2022 textbook PDF free of cost.
Who Should Read This Book
This textbook is for Class 8 students studying in PCTB-affiliated schools across Punjab following the Single National Curriculum (SNC) 2022. It is the officially prescribed General Science textbook for Punjab Board Class 8 and is useful for students, parents, and science teachers who need the standard SNC curriculum material in PDF format. Students preparing for their Class 8 annual board exams will find all 12 units essential for complete exam coverage.
Applicable Boards
This is the official PCTB General Science textbook for Class 8 and applies to all Punjab Board-affiliated schools following the SNC 2022 curriculum. Schools in Lahore, Faisalabad, Multan, Gujranwala, Rawalpindi, Bahawalpur, Sahiwal, Sargodha, and DG Khan districts use this textbook. Students in other provinces following the SNC framework may also find this book highly relevant for their General Science course.
FAQs
Is this the official PCTB General Science textbook for Class 8?
Yes, this is the official General Science textbook for Class 8 published by Punjab Curriculum and Textbook Board (PCTB), Lahore. It is based on the Single National Curriculum (SNC) 2022 and is prescribed for all PCTB-affiliated schools across Punjab.
How many units are in this book?
This General Science Class 8 PCTB textbook contains 12 units covering Ecology, Human Nervous System, Variation and Heredity, Biotechnology, Periodic Table, Chemical Reactions, Acids Bases and Salts, Force and Pressure, Light, Electricity and Magnetism, Technology in Everyday Life, and Our Universe.
Can students from other boards use this book?
Yes. Students in other provinces following the SNC 2022 curriculum can also use this General Science Class 8 book, as the SNC content is standardized nationally. However, students should confirm whether their specific board follows the same syllabus.
Is this book free to download?
Yes, this is a government-issued PCTB textbook available free of cost to students. You can download the PDF from the button above at no charge.