New NCERT 2026-27 · All 13 chapters · 303 Questions & Answers · Free · Curated by Shivang Aggarwal Sir
The Class 9 Science syllabus changed for the 2026-27 session and the NCERT book was replaced. These are the 13 chapters of the new book. We are publishing full solutions chapter by chapter — every NCERT question, including the in-text Pause and Ponder questions, with the book page number shown against each one. All solutions are free — no login required.
Introduces the scientific way of looking at the world — observation, measurement, evidence and the questions that drive secondary-school science.
Solutions coming soonThe cell as the basic unit of life: cell theory, prokaryotic and eukaryotic cells, and the main organelles and what each one does.
Read SolutionsPlant and animal tissues — meristematic and permanent tissues, and how epithelial, connective, muscular and nervous tissues carry out their jobs.
Read SolutionsDescribing motion: distance and displacement, speed, velocity and acceleration, and reading distance–time and velocity–time graphs.
Read SolutionsTypes of mixtures — solutions, suspensions and colloids — and separation methods such as filtration, evaporation, distillation and chromatography.
Read SolutionsHow forces change motion: balanced and unbalanced forces, Newton’s laws of motion, inertia and momentum.
Read SolutionsWork done by a force, kinetic and potential energy, conservation of energy, power, and how simple machines make work easier.
Solutions coming soonInside the atom: electrons, protons and neutrons, and how the model of the atom developed from Thomson to Bohr.
Solutions coming soonAtoms and molecules as the foundations of matter — atomic and molecular mass, the mole, and how elements combine into compounds.
Solutions coming soonHow sound is produced and travels, its characteristics, reflection and echoes, and everyday applications of sound.
Solutions coming soonHow life continues — asexual and sexual reproduction in plants and animals and how living things pass life to the next generation.
Solutions coming soonThe diversity of living organisms and the patterns and characteristics used to classify them into groups.
Solutions coming soonEarth as a connected system — its spheres, the cycling of matter and energy, natural resources and how living things interact with their surroundings.
Solutions coming soonHas the Class 9 Science syllabus changed for the 2026-27 session?
Yes. NCERT replaced the Class 9 Science textbook for 2026-27 with a new 13-chapter book, and these solutions follow that new book, not the older one.
How many chapters are in the new Class 9 Science book?
Thirteen — from “Exploration: Entering the World of Secondary Science” through to “Earth as a System: Energy, Matter and Life.”
Are these NCERT solutions free?
Yes. Every solution is completely free and no login, sign-up or payment is required.
Do the solutions cover the in-text questions as well?
Yes. We solve every NCERT question, including the in-text questions, with the book page number shown against each one.
Who prepares these solutions?
They are prepared and curated by Shivang Aggarwal Sir at Saraswati Vidyamandir, Ambala Cantt.
