← All NCERT Solutions | ← Class 8 Solutions
Free, original, step-by-step NCERT Solutions for Class 8 Science- English Medium (Curiosity), matching the current 2026-27 CBSE syllabus.
Each chapter below is solved question by question, in the order it appears in the textbook, so you can follow along page by page instead of jumping between sites. Click a chapter's Solutions link for the full worked answers, Extra Questions for additional practice beyond the textbook, and Revision Notes for a quick summary before a test.
📚 Formulas Handbook (all chapters)
Chapter 1: Exploring the Investigative World of Science – Free PDF Download
Chapter 1 — Exploring the Investigative World of Science — is a short orientation chapter that opens the new ‘Curiosity’ (Grade 8) textbook. It has no formal end-of-chapter exercise — instead it uses the everyday example of a puri puffing up unevenly in hot oil to introduce how scientists actually investigate a ques...
Solutions | Extra Questions | Revision Notes
Chapter 2: The Invisible Living World – Free PDF Download
Chapter 2 — The Invisible Living World — introduces cells as the basic unit of life and microorganisms (bacteria, fungi, protozoa, algae) — how microscopes revealed them, their beneficial roles (fermentation, decomposition, nitrogen fixation), and food preservation. Unlike Chapter 1, this chapter has a genuine, numb...
Solutions | Extra Questions | Revision Notes
Chapter 3: Health: The Ultimate Treasure – Free PDF Download
Chapter 3 — Health: The Ultimate Treasure — covers what health really means (physical, mental and social well-being), communicable vs non-communicable diseases, how diseases spread, immunity and the primary/secondary immune response, vaccination, and why antibiotics only work against bacteria. This chapter has a ful...
Solutions | Extra Questions | Revision Notes
Chapter 4: Electricity: Magnetic and Heating Effects – Free PDF Download
Chapter 4 — Electricity: Magnetic and Heating Effects — covers the magnetic effect of electric current (discovered by Oersted), how electromagnets are made and used, the heating effect of current, why nichrome is used in heating appliances, and how a simple chemical (Voltaic) cell like a lemon cell generates current...
Solutions | Extra Questions | Revision Notes
Chapter 5: Exploring Forces – Free PDF Download
Chapter 5 — Exploring Forces — introduces force as a push or pull arising from interaction between two objects, its effects (starting, stopping, changing speed/direction/shape), contact forces (muscular, friction), non-contact forces (magnetic, electrostatic, gravitational), weight vs mass, spring balances, and floa...
Solutions | Extra Questions | Revision Notes
Chapter 6: Pressure, Winds, Storms and Cyclones – Free PDF Download
Chapter 6 — Pressure, Winds, Storms and Cyclones — covers pressure as force spread over area, how liquids exert pressure in all directions and it increases with depth, how differences in air pressure create wind, how thunderstorms and lightning form, and how storms intensify into cyclones over warm ocean water. This...
Solutions | Extra Questions | Revision Notes
Chapter 7: Particulate Nature of Matter – Free PDF Download
Chapter 7 — Particulate Nature of Matter — explains that all matter is made of extremely small particles, constantly in motion and held together by interparticle forces, and shows how the arrangement, spacing, and movement of these particles differ across solids, liquids and gases. This chapter has 4 in-text questio...
Solutions | Extra Questions | Revision Notes
Chapter 8: Nature of Matter - Elements, Compounds and Mixtures - Curiosity
Chapter 8 of the Class 8 NCERT Curiosity (Jigyasa) textbook is titled "Nature of Matter: Elements, Compounds and Mixtures". Building on Chapter 7's particle theory of matter, this chapter explains how matter is classified into pure substances (elements and compounds) and mixtures — a foundational chemistry topic for...
Solutions | Extra Questions | Revision Notes
Chapter 9: The Amazing World of Solutes, Solvents and Solutions - Curiosity
Chapter 9 of the Class 8 NCERT Curiosity textbook is titled "The Amazing World of Solutes, Solvents and Solutions". Building on Chapter 8's classification of matter, this chapter explores what makes a solution (as opposed to a suspension), solubility and how it changes with temperature, and a substantial hands-on un...
Solutions | Extra Questions | Revision Notes
Chapter 10: Light: Mirrors and Lenses - Curiosity
Chapter 10 of the Class 8 NCERT Curiosity textbook is titled "Light: Mirrors and Lenses". It covers the laws of reflection, how plane, concave and convex mirrors form images differently, how convex and concave lenses converge or diverge light, and everyday applications like magnifying glasses, vehicle mirrors and re...
Solutions | Extra Questions | Revision Notes
Chapter 11: Keeping Time with the Skies - Curiosity
Chapter 11 of the Class 8 NCERT Curiosity textbook is titled "Keeping Time with the Skies". It explores how humans have measured time using astronomical cycles — the day (Earth's rotation), the month (the Moon's phases and orbit), and the year (Earth's orbit around the Sun) — along with the Moon's phases, calendars,...
Solutions | Extra Questions | Revision Notes
Chapter 12: How Nature Works in Harmony - Curiosity
Chapter 12 of the Class 8 NCERT Curiosity textbook is titled "How Nature Works in Harmony". It introduces ecosystems, food chains and food webs, trophic levels and ecological pyramids, decomposers, and how human activity and natural events (like tsunamis) interact with ecosystems. These Class 8 Science Chapter 12 so...
Solutions | Extra Questions | Revision Notes
Chapter 13: Our Home: Earth, A Unique Life Sustaining Planet - Curiosity
Chapter 13 of the Class 8 NCERT Curiosity textbook is titled "Our Home: Earth, A Unique Life Sustaining Planet". It explores what makes Earth uniquely habitable — its distance from the Sun, atmosphere, magnetic field, size and gravity, plate tectonics — along with geodiversity, biodiversity, climate change and human...
Solutions | Extra Questions | Revision Notes
| Chapter | NCERT Solutions | Revision Notes | Extra Questions (HOTS) |
|---|---|---|---|
| Ch 1: Exploring the Investigative World of Science – Free PDF Download | Solutions | Revision Notes | Extra Questions |
| Ch 2: The Invisible Living World – Free PDF Download | Solutions | Revision Notes | Extra Questions |
| Ch 3: Health: The Ultimate Treasure – Free PDF Download | Solutions | Revision Notes | Extra Questions |
| Ch 4: Electricity: Magnetic and Heating Effects – Free PDF Download | Solutions | Revision Notes | Extra Questions |
| Ch 5: Exploring Forces – Free PDF Download | Solutions | Revision Notes | Extra Questions |
| Ch 6: Pressure, Winds, Storms and Cyclones – Free PDF Download | Solutions | Revision Notes | Extra Questions |
| Ch 7: Particulate Nature of Matter – Free PDF Download | Solutions | Revision Notes | Extra Questions |
| Ch 8: Nature of Matter - Elements, Compounds and Mixtures - Curiosity | Solutions | Revision Notes | Extra Questions |
| Ch 9: The Amazing World of Solutes, Solvents and Solutions - Curiosity | Solutions | Revision Notes | Extra Questions |
| Ch 10: Light: Mirrors and Lenses - Curiosity | Solutions | Revision Notes | Extra Questions |
| Ch 11: Keeping Time with the Skies - Curiosity | Solutions | Revision Notes | Extra Questions |
| Ch 12: How Nature Works in Harmony - Curiosity | Solutions | Revision Notes | Extra Questions |
| Ch 13: Our Home: Earth, A Unique Life Sustaining Planet - Curiosity | Solutions | Revision Notes | Extra Questions |
Also see the Class 8 NCERT Books catalog for the official textbook PDF.
Frequently Asked Questions
Are these Class 8 Science- English Medium (Curiosity) solutions updated for the 2026-27 syllabus?
Yes, every chapter listed above is checked against the current NCERT Science textbook for the 2026-27 CBSE session.
Do you also have Extra Questions and Revision Notes for Class 8 Science- English Medium (Curiosity)?
Yes — wherever published, Extra Questions and/or Revision Notes are linked next to the matching chapter above.
What is the Class 8 Science NCERT book called?
The current NCERT textbook for Class 8 Science is called Curiosity. The solutions above follow it chapter by chapter, in the same order as the printed book.
Are these Class 8 Science NCERT Solutions available in Hindi medium?
Yes -- see our separate Class 8 Science Hindi Medium Solutions page.