🔥 Class 10 Science — 2 Days Before Exam
Master Plan
15 Chapters × Notes + MCQ Test = Complete Revision in One Place!
RBSE 21 February | CBSE Board 2026
⏰ Only 2 Days Left — Start NOW!
🔥 Science exam on 21 February! Follow this Master Plan — every chapter has 📘 Notes + 📝 MCQ Test in one click!
👇 Below for each chapter: Expected Topics + Quick Formulas + Direct Links
📱 Bookmark this page — it's your complete 2-day roadmap!
👇 Below for each chapter: Expected Topics + Quick Formulas + Direct Links
📱 Bookmark this page — it's your complete 2-day roadmap!
📅 2-Day Master Plan — When to Study What?
📅 Day 1 (Today) — Chemistry + Biology
🧪 Morning: Ch1 Chemical Reactions + Ch2 Acids Bases Salts + Ch3 Metals & Non-Metals🧪 Afternoon: Ch4 Carbon Compounds + Ch5 Periodic Classification
🧬 Evening: Ch6 Life Processes + Ch7 Control & Coordination
🧬 Night: Ch8 Reproduction + Ch9 Heredity + MCQ Tests for all 9 chapters
📅 Day 2 (Tomorrow) — Physics + Environment
💡 Morning: Ch10 Light Reflection & Refraction + Ch11 Human Eye (Memorize Formulas!)⚡ Afternoon: Ch12 Electricity + Ch13 Magnetic Effects
🌿 Evening: Ch14 Our Environment + Ch15 Sources of Energy + Ch16 Natural Resources
📝 Night: Take the Full Syllabus Test! + Revise all Formulas
🧪 Chemistry — Chapters 1-5
Ch 1: Chemical Reactions & Equations⭐ High Weightage
🎯 Expected: Combination, Decomposition, Displacement, Double Displacement reactions | Oxidation-Reduction | Balancing equations | Exothermic & Endothermic | Corrosion & Rancidity
✍️ Tip: Practice balancing equations — direct 2-3 marks! Learn to identify reaction types from given equations.
Ch 2: Acids, Bases & Salts⭐ High Weightage
🎯 Expected: pH Scale (0-14) | Indicators (Litmus, Phenolphthalein, Methyl Orange) | Preparation of NaOH, NaCl, NaHCO₃, Na₂CO₃ | Plaster of Paris | Bleaching Powder | Baking Soda
pH 7 = Neutral | <7 = Acidic | >7 = Basic
Plaster of Paris: CaSO₄·½H₂O | Washing Soda: Na₂CO₃·10H₂O
Ch 3: Metals & Non-Metals⭐ High Weightage
🎯 Expected: Reactivity Series | Ionic Bonding | Extraction of Metals — Roasting, Calcination, Reduction | Corrosion | Alloys (Brass, Bronze, Stainless Steel)
Reactivity Series: K Na Ca Mg Al Zn Fe Ni Sn Pb — H Cu Hg Ag Au Pt
✍️ Trick: "King Naughty CaMels MAke Zoos — Full Near SiNking Ships — Happy CUte Hairy Apes Guard Pearls"
Ch 4: Carbon & Its Compounds
🎯 Expected: Homologous Series | IUPAC Nomenclature | Properties of Ethanol & Ethanoic Acid | Soaps & Detergents | Saturated vs Unsaturated Hydrocarbons | Functional Groups
CH₄ Methane → C₂H₆ Ethane → C₃H₈ Propane → C₄H₁₀ Butane → C₅H₁₂ Pentane
Ch 5: Periodic Classification of Elements
🎯 Expected: Mendeleev vs Modern Periodic Table | Trends across Period — atomic size, valency, metallic character | Trends down a Group | Dobereiner's Triads | Newlands' Octaves
Left → Right: Size ↓, Electronegativity ↑ | Top → Bottom: Size ↑, Metallic character ↑
🧬 Biology — Chapters 6-9
Ch 6: Life Processes⭐ Highest Weightage
🎯 Expected: Nutrition (Autotrophic/Heterotrophic) | Digestive System diagram | Respiration — Aerobic/Anaerobic | Circulatory System — Heart diagram (4 chambers) | Excretion — Nephron diagram | Transpiration
Photosynthesis: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (sunlight + chlorophyll)
✍️ Must-Draw Diagrams: Digestive System, Heart (4 chambers), Nephron — direct 5 marks!
Ch 7: Control & Coordination⭐ High Weightage
🎯 Expected: Nervous System — Brain diagram (Forebrain, Midbrain, Hindbrain) | Reflex Action & Reflex Arc | Plant Hormones (Auxin, Gibberellin) | Human Hormones (Thyroxin, Insulin, Adrenaline)
✍️ Remember: Insulin → Diabetes | Thyroxin → Goitre | Adrenaline → Fight or Flight
Ch 8: How Do Organisms Reproduce?
🎯 Expected: Asexual Reproduction (Budding, Fragmentation, Spore formation) | Sexual Reproduction — Flower structure diagram | Human Reproductive System (Male/Female) | Contraceptive Methods | STDs
✍️ Diagram: Flower Structure (Sepals, Petals, Stamens, Carpel) — must draw!
Ch 9: Heredity & Evolution
🎯 Expected: Mendel's Laws | Monohybrid Cross (3:1) | Dihybrid Cross (9:3:3:1) | Sex Determination (XX-XY) | Homologous vs Analogous Organs | Fossils | Speciation
✍️ Remember: F₂ ratio = 3 Tall : 1 Short | Sex of child depends on father's X or Y chromosome
💡 Physics — Chapters 10-13
Ch 10: Light — Reflection & Refraction⭐ Highest Weightage
🎯 Expected: Mirror Formula | Snell's Law | Lens Formula | Magnification | Ray Diagrams (Concave Mirror, Convex Lens) | Sign Convention | Image formation tables
Mirror Formula: 1/v + 1/u = 1/f | Magnification: m = −v/u = h'/h
Lens Formula: 1/v − 1/u = 1/f | Power: P = 1/f (Dioptre, f in metres)
Snell's Law: n = sin i / sin r | n = c/v (speed of light)
✍️ Must Practice: Draw ray diagrams for Concave Mirror (all 6 positions) + Convex Lens — 5 marks guaranteed!
Ch 11: Human Eye & The Colourful World
🎯 Expected: Structure of Human Eye diagram | Defects of Vision — Myopia (Concave lens), Hypermetropia (Convex lens), Presbyopia (Bifocal) | Dispersion through Prism | Atmospheric Refraction — Twinkling of Stars, Sunrise/Sunset
✍️ Remember: Myopia → Concave Lens | Hypermetropia → Convex Lens
Ch 12: Electricity⭐ Highest Weightage
🎯 Expected: Ohm's Law (V=IR) | Series & Parallel Combination | Electric Power & Energy | Resistivity | Drawing Circuit Diagrams | Numericals — 5-8 marks!
Ohm's Law: V = I × R
Series: R = R₁ + R₂ + R₃ | Parallel: 1/R = 1/R₁ + 1/R₂ + 1/R₃
Power: P = VI = I²R = V²/R | Energy: E = P × t = VIt
Resistivity: R = ρ × l/A | 1 kWh = 3.6 × 10⁶ J
✍️ Practice Numericals! Electricity gives 5-8 marks of numericals every year!
Ch 13: Magnetic Effects of Electric Current
🎯 Expected: Magnetic Field Lines diagram | Fleming's Left-Hand Rule | Electric Motor | Electric Generator | Fleming's Right-Hand Rule | AC vs DC | Fuse, MCB
✍️ Diagrams: Electric Motor + Generator = must draw!✍️ Remember: Left Hand (FBI) = Motor | Right Hand = Generator
🌿 Environment — Chapters 14-16
Ch 14: Our Environment
🎯 Expected: Ecosystem Components | Food Chain & Food Web | 10% Energy Rule | Ozone Layer Depletion | Biodegradable vs Non-biodegradable Waste
✍️ Remember: Energy Pyramid = Always Upright! | CFC = Ozone destroyer | 10% Rule = Lindeman
Ch 15: Sources of Energy
🎯 Expected: Renewable vs Non-renewable Energy | Solar Energy — Solar Cooker, Solar Cell | Biogas Plant | Wind Energy | Nuclear Energy — Fission vs Fusion
Fission = Big → Small (Bomb) | Fusion = Small → Big (Sun)
Ch 16: Management of Natural Resources
🎯 Expected: 3R — Reduce, Reuse, Recycle | Ganga Action Plan | Forest Management — Stakeholders | Chipko Movement | Dams — Advantages & Disadvantages | Water Harvesting | Coliform bacteria
📐 All Formulas at a Glance
| Topic | Formula | Unit |
|---|---|---|
| Ohm's Law | V = IR | V, A, Ω |
| Power | P = VI = I²R = V²/R | Watt (W) |
| Energy | E = Pt = VIt | J or kWh |
| Resistivity | R = ρl/A | Ωm |
| Series | R = R₁ + R₂ + R₃ | Ω |
| Parallel | 1/R = 1/R₁ + 1/R₂ + 1/R₃ | Ω |
| Mirror Formula | 1/v + 1/u = 1/f | cm |
| Lens Formula | 1/v − 1/u = 1/f | cm |
| Magnification (Mirror) | m = −v/u | — |
| Magnification (Lens) | m = v/u | — |
| Lens Power | P = 1/f (f in metres) | Dioptre (D) |
| Snell's Law | n₁ sin i = n₂ sin r | — |
| Photosynthesis | 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ | — |
🎨 Must-Draw Diagrams — Draw in Exam = Full Marks!
🔬 Biology Diagrams:
1. Human Digestive System (with labels)
2. Heart — 4 Chambers (RA, RV, LA, LV + valves)
3. Nephron — Excretory Unit
4. Human Brain — 3 Parts (Fore, Mid, Hind)
5. Structure of a Flower (Sepal, Petal, Stamen, Carpel)
6. Human Eye (with Cornea, Iris, Lens, Retina)
💡 Physics Diagrams:
7. Concave Mirror — Ray Diagrams (all 6 positions of object)
8. Convex Lens — Ray Diagrams
9. Electric Motor (with split ring commutator)
10. Electric Generator (with slip rings)
11. Magnetic Field Lines (bar magnet + solenoid)
12. Circuit Diagrams — Series & Parallel (with ammeter, voltmeter)
1. Human Digestive System (with labels)
2. Heart — 4 Chambers (RA, RV, LA, LV + valves)
3. Nephron — Excretory Unit
4. Human Brain — 3 Parts (Fore, Mid, Hind)
5. Structure of a Flower (Sepal, Petal, Stamen, Carpel)
6. Human Eye (with Cornea, Iris, Lens, Retina)
💡 Physics Diagrams:
7. Concave Mirror — Ray Diagrams (all 6 positions of object)
8. Convex Lens — Ray Diagrams
9. Electric Motor (with split ring commutator)
10. Electric Generator (with slip rings)
11. Magnetic Field Lines (bar magnet + solenoid)
12. Circuit Diagrams — Series & Parallel (with ammeter, voltmeter)
🚀 Mega Resources — More Practice!
📋 More Study Material
🔥 21 February — Best of Luck!
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