Odia Medium Class 9 Science Notes (2026-27)

BSE Odisha Class 9 Science Notes – FREE PDF Download

Class 9 Science (Bigyana) Notes are designed to simplify complex scientific theories and principles. On our platform, you will find key points, labeled diagrams, and exam-oriented question answers for every chapter. These Class 9 Revision Notes are strictly aligned with the latest OSEPA (Odisha School Education Programme Authority) syllabus, making them the perfect guide for quick revision before your school exams.

Use the links below to access chapter-wise notes and download the FREE PDF versions for your study.

Chapter-wise Revision Notes for Class 9 Science

S. No BSE Odisha Class 9th Science Revision Notes (English/Odia Medium)
Chapter 1 Matter in our Surroundings (ଆମ ଚାରିପାଖରେ ଥିବା ପଦାର୍ଥ)
Chapter 2 Is Matter Around us Pure? (ଆମ ଚାରିପାଖର ପଦାର୍ଥ କ’ଣ ବିଶୁଦ୍ଧ?)
Chapter 3 Atoms and Molecules (ପରମାଣୁ ଓ ଅଣୁ)
Chapter 4 Structure of the Atom (ପରମାଣୁର ଗଠନ)

| Chapter 5 | The Fundamental Unit of Life (ଜୀବନର ମୌଳିକ ଏକକ) |

| Chapter 6 | Tissues (ଟିସୁ) |

| Chapter 7 | Motion (ଗତି) |

| Chapter 8 | Force and Laws of Motion (ବଳ ଓ ଗତିର ନିୟମ) |

| Chapter 9 | Gravitation (ମହାକର୍ଷଣ) |

| Chapter 10 | Work and Energy (କାର୍ଯ୍ୟ ଓ ଶକ୍ତି) |

| Chapter 11 | Sound (ଶବ୍ଦ) |

| Chapter 12 | Improvement in Food Resources (ଖାଦ୍ୟ ସମ୍ବଳର ଉନ୍ନତିକରଣ) |

BSE Odisha Class 9 Science (Bigyana): A General Overview

The BSE Odisha Class 9 Science textbook is meticulously crafted to bridge the gap between basic observations and advanced scientific logic. Following the OSEPA curriculum, it introduces students to the building blocks of Chemistry, the mechanics of Physics, and the intricate life processes in Biology. Our notes help students master these “Koutuhala” (Curiosity) concepts through simplified English explanations and accurate diagrams.

Core Chapter Highlights (Odia Medium Syllabus)

  • Matter and its Nature: Study the physical nature of matter, the states of matter (Solid, Liquid, Gas), and the phenomenon of evaporation.

  • Is Matter Around us Pure?: Learn about elements, compounds, and mixtures. Understand how to separate components using techniques like filtration and distillation.

  • Atoms and Molecules (ପରମାଣୁ ଓ ଅଣୁ): Explore the laws of chemical combination, mole concepts, and how to write chemical formulas.

  • Structure of the Atom: Examine the discovery of electrons, protons, and neutrons. Study the atomic models of Thomson, Rutherford, and Bohr.

  • The Fundamental Unit of Life (ଜୀବନର ମୌଳିକ ଏକକ): A deep dive into the cell. Understand the functions of the Plasma Membrane, Nucleus, and Mitochondria.

  • Tissues (ଟିସୁ): Differentiate between Meristematic and Permanent plant tissues, and explore the four types of animal tissues.

  • Motion, Force, and Laws of Motion: Master the concepts of displacement, velocity, and Newton’s three laws that govern how objects move.

    [Image showing the graphical representation of motion: Distance-Time and Velocity-Time graphs]

  • Gravitation (ମହାକର୍ଷଣ): Understand the Universal Law of Gravitation, the concept of ‘g’ (acceleration due to gravity), and Archimedes’ Principle of buoyancy.

  • Work, Energy, and Sound: Learn the transformation of energy from Kinetic to Potential and how sound waves propagate through different mediums.

  • Food Resources: Explore sustainable agricultural practices, crop variety improvement, and the basics of animal husbandry in the Odisha context.

BSE Odisha Class 9 Science Weightage (2025-26)

Unit No Unit Name Marks
I Matter – Its Nature and Behaviour (ପଦାର୍ଥର ପ୍ରକୃତି ଓ ବ୍ୟବହାର) 25
II Organisation in the Living World (ଜୀବଜଗତର ସଂଗଠନ) 22
III Motion, Force, and Work (ଗତି, ବଳ ଓ କାର୍ଯ୍ୟ) 27
IV Food; Food Production (ଖାଦ୍ୟ ସମ୍ବଳ) 6
Total Board Examination Marks 80

Key Features of Our Class 9 Science Notes

  • BSE Odisha Specific: Every summary is cross-referenced with the OSEPA textbook chapters used in Odisha state schools.

  • Simplified Technical Terms: We provide English-to-Odia translations for complex terms like “Endoplasmic Reticulum” or “Centripetal Force.”

  • Illustrative Diagrams: Science is a visual subject. Our notes include clear, labeled diagrams that are easy to replicate in answer sheets.

  • Exam-Ready Summaries: We condense 20-page chapters into high-impact bullet points, perfect for last-minute revision.

Exam Preparation Guide for Class 9 Science

  1. Practice Numerical Problems: Physics chapters like Motion and Work require practicing formulas. Always keep a list of equations ready.

  2. Focus on Diagrams: In Biology, a neat diagram of a Neuron or Stomata can fetch you full marks even with a brief explanation.

  1. Learn Law Statements: Memorize the exact wording of laws like Newton’s Laws of Motion or the Law of Conservation of Mass.

  2. Use Our PDF Notes: Download the Class 9 Science Notes PDF from our site to review the “Most Important Bits” (Objective questions) which are very common in Odisha Board exams.

  3. Revise the Table of Elements: For Chemistry, knowing the first 20 elements and their valencies is essential for writing chemical equations correctly.

Odisha Board Solutions provides these resources to ensure every student in Odisha has the tools to excel. By mastering these foundational concepts in Class 9, you are setting yourself up for a successful Class 10 Board year!