Class 9 : Science Chapterwise Short Notes
Charges and Ions – Complete Notes with Full List of Ions
Understand the basics of charges, how ions are formed, their types, key differences, and a comprehensive reference table of cations and anions.
Keep reading
Science NCERT Syllabus Class 9
Science Class IX Index Chapter Title Chapter 1 MATTER IN OUR SURROUNDINGS Chapter 2 IS MATTER AROUND US PURE? Chapter 3 ATOMS AND MOLECULES Chapter 4 STRUCTURE OF THE ATOM Chapter 5 THE FUNDAMENTAL UNIT OF LIFE Chapter 6 TISSUES Chapter 7 MOTION Chapter 8 FORCE AND LAWS OF MOTION Chapter 9 GRAVITATION Chapter 10 WORK AND ENERGY Chapter 11…
Keep reading
Class 9 Science – Chapter 1: Matter in Our Surroundings
Chapter 1: Matter in Our Surroundings हिन्दी में पढ़ें Introduction Everything around us is made up of matter. Matter is anything that has mass and occupies space. It exists in different forms and has various properties that help us identify and classify it. Physical Nature of Matter 1. Matter is Made Up of Particles 2. Characteristics of Particles of Matter…
Keep reading
Chapter 2: IS MATTER AROUND US PURE – Class 9 Science NCERT Notes
Chapter 2: IS MATTER AROUND US PURE? हिन्दी में पढ़ें 🔹 1. What is a Pure Substance? 🔹 2. What is a Mixture? 🔹 3. Types of Mixtures ✅ (A) Homogeneous Mixture ✅ (B) Heterogeneous Mixture 🔹 4. Solution (A Type of Homogeneous Mixture) 🧪 Examples: 🔸 Properties of a Solution 🔹 5. Concentration of a Solution Shows the amount…
Keep reading
Chapter 3: Atoms and Molecules – Class 9 Science NCERT Notes
Before Reading Structure of Atoms – Glossary (English-Hindi) / अणु की संरचना – शब्दावली (English-Hindi) Click For All Useful Constants Chapter 3: Atoms and Molecules – Class 9 Science NCERT Notes हिन्दी में पढ़ें 🔸 1. Laws of Chemical Combination (a) Law of Conservation of Mass (b) Law of Constant Proportions 🔸 2. Dalton’s Atomic Theory 🔸 3. Atoms Symbols…
Keep reading
Structure of Atom Class 9 Chapter 4
Before Reading Structure of Atoms – Glossary (English-Hindi) / अणु की संरचना – शब्दावली (English-Hindi) Click For All Useful Constants Chapter 4 : Structure Of Atom हिन्दी में पढ़ें 🔹 1. Introduction 🔹 2. Dalton’s Atomic Theory (1808) 🟡 Limitations: Failed to explain existence of subatomic particles (electrons, protons, neutrons), and isotopes. 🔹 3. Discovery of Electrons, Protons, and Neutrons…
Keep reading
NCERT Short Notes Chapter 5: The Fundamental Unit of Life
📘 Chapter 5: The Fundamental Unit of Life हिन्दी में पढ़ें 🔹 Introduction 🔹 Discovery of Cell 🔹 Cell Theory 🔹 Types of Organisms 🔹 Types of Cells 🔹 Differences between Prokaryotic and Eukaryotic Cells Feature Prokaryotic Cell Eukaryotic Cell Nucleus Absent Present Size Small Large Cell organelles Not present Present Example Bacteria Animal, Plant cells 🔹 Structure of a…
Keep reading
CBSE Notes for Class 9 Science Chapter 6 – Tissue
Chapter 6: Tissue हिन्दी में पढ़ें 🔹 1. Introduction 🔹 2. Plant Tissues 🔸 (A) Meristematic Tissue – Dividing cells 🔸 (B) Permanent Tissue – Non-dividing cells (Develops from meristematic tissue) (i) Simple Permanent Tissue (ii) Complex Permanent Tissue 🔹 3. Animal Tissues 🔸 (A) Epithelial Tissue – Covering/protective tissue 🔸 (B) Connective Tissue – Connects body parts 🔸 (C)…
Keep reading
NCERT Short Notes for Class 9 Science Chapter 7 Motion
Chapter 7 : MOTION हिन्दी में पढ़ें 🧠 1. Important Terms and Definitions 📐 2. Important Formulas S.No Formula Meaning 1 Speed=Distance/Time Speed 2 Velocity=Displacement/Time Velocity 3 a=(v−u)/t Acceleration 4 v=u+at 1st equation of motion 5 s=ut+1*2 X at2 2nd equation of motion 6 v2=u2+2as 3rd equation of motion 7 Average speed=Total DistanceTotal /Time Average Speed 8 Relative speed=v1±v2 When two bodies move toward…
Keep reading
Chapter 8 : Force and Laws of Motion – Class 9 (NCERT)
🧲 Chapter 8 : Force and Laws of Motion – Class 9 (NCERT) हिन्दी में पढ़ें 🔹 1. Force 🔹 2. Balanced and Unbalanced Forces 🔹 3. Newton’s First Law of Motion (Law of Inertia) 🔹 4. Newton’s Second Law of Motion 🔹 Formula: 🔹 5. Newton’s Third Law of Motion 🔹 6. Conservation of Momentum 🔹 Formula: 🔹 7.…
Keep reading
Chapter 9: Gravitation – Class 9 Science
Contents 🪐 Chapter 9: Gravitation – Class 9 Science हिन्दी में पढ़ें 🔹 1. Introduction to Gravitation 🔹 2. Universal Law of Gravitation Statement:Every object in the universe attracts every other object with a force which is: Formula:F = G × (m₁ × m₂) / r² Where: Value of G:G = 6.674 × 10⁻¹¹ N·m²/kg² (same everywhere in the universe)…
Keep reading
Class 9 Science – Chapter 10: Work and Energy
Contents Chapter 10: Work and Energy हिन्दी में पढ़ें 📘 1. Work ✅ Work in Scientific Terms Work is said to be done when a force is applied on an object and it causes displacement in the direction of the force. 📌 Conditions for Work 💡 Formula for Work Work (W)=Force (F)×Displacement (d)×cosθ = Fdcosθ Where: 🔁 Types of Work Type of Work…
Keep reading
Class 9 Science – Chapter 11 : Sound
Chapter 11: Sound हिन्दी में पढ़ें Introduction to Sound Sound is a form of energy that produces a sensation of hearing in our ears. It is produced by vibrating objects and travels in the form of waves through a medium. Production of Sound Propagation of Sound Types of Waves Sound waves are longitudinal mechanical waves, meaning the particles of the…
Keep reading
Class 9 Science – Chapter 12 : Improvement in Food Resources
Chapter 12: Improvement in Food Resources हिन्दी में पढ़ें Introduction Food is essential for survival, and its demand increases with the growing population. To meet this demand, we need to improve food resources through better agricultural and animal husbandry practices. 1. Improvement in Crop Production Crop production can be improved through: 1.1 Crop Variety Improvement Crop variety can be improved…
Keep reading
The Bachchantop 