Post Date: 25 July 2025 | Latest Update: 25 July 2025
Short Information
Master CBSE Class 10 Science with concise, exam-focused notes for Physics, Chemistry, Biology, and Environmental Science. Includes key definitions, diagrams, formulas, and important questions. Perfect for quick revision!
Class 10 Chapter-wise Notes
Physics
| Chapter | Key Topics |
|---|---|
| 1. Light – Reflection & Refraction | |
| – Laws of Reflection, Spherical Mirrors (Concave/Convex) | |
– Refraction: Snell’s Law, Lens Formula (1/f = 1/v - 1/u) | |
| – Diagram: Ray diagrams for mirrors and lenses | |
| 2. Electricity | |
– Ohm’s Law (V = IR), Series & Parallel Circuits | |
– Joule’s Law of Heating (H = I²Rt) | |
| – Diagram: Electric Circuit Symbols |
Chemistry
| Chapter | Key Topics |
|---|---|
| 1. Chemical Reactions & Equations | |
| – Types: Combination, Decomposition, Displacement | |
– Balancing Equations (e.g., 2H₂ + O₂ → 2H₂O) | |
| 2. Acids, Bases & Salts | |
| – pH Scale, Neutralization Reactions | |
| – Preparation of NaOH (Chlor-alkali Process) |
Biology
| Chapter | Key Topics |
|---|---|
| 1. Life Processes | |
| – Nutrition (Autotrophic/Heterotrophic) | |
| – Human Digestive System Diagram | |
| 2. Heredity & Evolution | |
| – Mendel’s Laws of Inheritance | |
| – Darwin’s Theory of Natural Selection |
Environmental Science
- Sustainable Management of Natural Resources: 3R Principle (Reduce, Reuse, Recycle), Water Harvesting.
Important Formulas & Diagrams
- Physics:
- Mirror Formula:
1/f = 1/v + 1/u - Power of Lens:
P = 1/f
- Mirror Formula:
- Chemistry:
- pH Formula:
pH = -log[H⁺]
- pH Formula:
- Biology:
- Photosynthesis:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
- Photosynthesis:
Preparation Tips
- Daily Revision: Spend 30 mins/day revising notes.
- Diagrams Practice: Label diagrams like the Human Eye or Electric Circuit.
- Solve NCERT Questions: Focus on Chapter-end exercises.
- Mock Tests: Use previous years’ papers (2020–2024).
Download Links
- Full Notes PDF: Click Here (Password: SCIENCE2025)
- Chapter-wise MCQs: Practice Now
Important Questions (CBSE Pattern)
- Physics: Derive the mirror formula for a concave mirror.
- Chemistry: Write the chemical equation for soap preparation.
- Biology: Explain the process of double fertilization in plants.
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Disclaimer
Notes are based on the CBSE Class 10 Science Syllabus 2025. Verify diagrams and formulas from NCERT textbooks. For doubts, comment below!
