Maharashtra Board SSC Class 10 Science Chapter Wise Notes 2027 - Science I & II

In short: Maharashtra SSC Class 10 Science 2027 has TWO separate papers — Science I (Physics + Chemistry, 40 marks) and Science II (Biology, 40 marks) — following the new reduced paper pattern. Science I covers Gravitation (Newton's law, free fall), Periodic Classification (trends, modern table), Chemical Reactions and Equations (types, balancing), Effects of Electric Current (Ohm's law, magnetic effects), Heat (specific heat, latent heat), Refraction of Light (Snell's law, lenses), Lenses (image formation, power), Metallurgy (extraction processes), Carbon Compounds (functional groups, homologous series), and Space Missions (ISRO achievements). Science II covers Heredity and Evolution (Mendel's laws, natural selection), Life Processes Part 1 (nutrition, respiration), Life Processes Part 2 (transportation, excretion), Environmental Management (conservation, pollution), Green Energy (renewable sources), Animal Classification (phyla), Cell Biology and Biotechnology (cell organelles, DNA), Introduction to Microbiology (bacteria, viruses), Social Health (diseases, hygiene), and Disaster Management (types, preparedness).

Understanding the Maharashtra SSC Science Pattern

Maharashtra Board SSC Science is structured differently from CBSE. The subject is split into two papers — Science I and Science II — each carrying 40 marks for written examination plus 10 marks for oral and practical work (total 100 marks combined). The 2027 exam follows the new reduced paper pattern where the question paper length has been shortened by approximately 60%.

This two-paper system means you are essentially preparing for two separate exams. Science I covers Physics and Chemistry topics, while Science II covers Biology and related applied science topics. Each paper has its own time allocation and question pattern. For the complete marks distribution, see the Maharashtra Board Class 10 Science marks weightage guide.

Complete Chapter List

Science I (Physics + Chemistry) — 40 Marks

Science II (Biology) — 40 Marks

Science I: Chapter-Wise Notes

Chapter 1: Gravitation

• Core concepts: Newton's Universal Law of Gravitation: F = Gm₁m₂/r². Acceleration due to gravity (g = 9.8 m/s²). Relationship between g and G: g = GM/R². Free fall — all objects fall at the same rate in vacuum. Mass vs weight. Weight on moon = 1/6th of weight on earth. Kepler's laws of planetary motion.
• Key formulas: F = Gm₁m₂/r², g = GM/R², Weight = mg. G = 6.67 × 10⁻¹¹ Nm²/kg².
• Must-know diagrams: Free fall setup, gravitational force between two objects.
• Exam tip: Numericals on calculating gravitational force, weight on moon, and acceleration due to gravity are common 3-4 mark questions. Always convert units correctly and show substitution steps.

Chapter 2: Periodic Classification of Elements

• Core concepts: Mendeleev's periodic table based on atomic mass and its limitations. Modern periodic table based on atomic number. Periods and groups. Trends: atomic size, metallic character, ionization energy, electron affinity across periods and down groups. Position of elements based on electronic configuration.
• Exam tip: Comparison questions ("How do properties change across a period?") carry 2-3 marks. Make a clear comparison table in your answer for maximum marks. For answer writing tips, check the answer sheet strategy guide.

Chapter 3: Chemical Reactions and Equations

• Core concepts: Types of reactions — combination, decomposition, displacement, double displacement, oxidation, reduction, exothermic, endothermic. Balancing chemical equations using hit-and-trial method. Oxidation and reduction in terms of oxygen, hydrogen, and electron transfer. Corrosion and rancidity with prevention methods.
• Key equations: 2Mg + O₂ → 2MgO (combination), CaCO₃ → CaO + CO₂ (decomposition), Zn + CuSO₄ → ZnSO₄ + Cu (displacement).
• Exam tip: Balancing equations and identifying reaction types are basic skills tested in both papers. Practice writing at least 20 balanced equations with state symbols.

Chapter 4: Effects of Electric Current

• Core concepts: Ohm's law (V = IR), resistance and resistivity. Series and parallel circuits. Heating effect of current — electric heater, fuse. Magnetic effect of current — Oersted's experiment. Electromagnets, electric bell. Fleming's Left Hand Rule. DC motor working. Electromagnetic induction — Faraday's law, AC generator.
• Key formulas: V = IR, R = ρl/A, P = VI = I²R, H = I²Rt.
• Exam tip: Circuit numericals and motor/generator diagrams are high-value questions. Practice drawing and labeling the DC motor and AC generator completely.

Chapter 5: Heat

• Core concepts: Heat vs temperature distinction. Specific heat capacity (Q = mcΔT). Latent heat of fusion and vaporisation. Calorimetry — heat lost = heat gained. Anomalous expansion of water. Change of state — heating and cooling curves.
• Key formulas: Q = mcΔT, Q = mL. Specific heat of water = 4186 J/kg°C.
• Exam tip: Calorimetry numericals are common 3-4 mark questions. Set up the heat equation carefully, converting all quantities to SI units first.

Chapter 6: Refraction of Light

• Core concepts: Laws of refraction (Snell's law: n₁ sin i = n₂ sin r). Refractive index and its significance. Total internal reflection — critical angle, conditions, applications (optical fibre, mirage). Refraction through a glass slab — lateral displacement.
• Key formulas: n = sin i / sin r, n = c/v, n = real depth / apparent depth.
• Exam tip: Numericals using Snell's law carry 3-4 marks. Total internal reflection applications are favourite short-answer questions.

Chapter 7: Lenses

• Core concepts: Convex and concave lenses. Rules for image formation by lenses. Lens formula: 1/v - 1/u = 1/f. Magnification: m = v/u = h'/h. Power of a lens: P = 1/f (in metres), unit is dioptre. Combination of lenses.
• Must-know diagrams: Ray diagrams for convex lens (all 6 positions of object), concave lens.
• Exam tip: Ray diagram questions carry 3-4 marks. Use a ruler, draw principal axis, and label F, 2F, and optical centre. Lens numericals are scoring — practice at least 20 problems.

Chapter 8: Metallurgy

• Core concepts: Ores vs minerals. Concentration of ore — gravity separation, froth floatation, magnetic separation. Extraction: roasting and calcination, reduction. Refining of metals — electrolytic refining. Thermite process. Corrosion and alloys.
• Must-know diagrams: Electrolytic refining setup, blast furnace (if in syllabus).
• Exam tip: The extraction process flowchart (ore → concentration → extraction → refining) is a common 3-mark question. Write chemical equations for each step.

Chapter 9: Carbon Compounds

• Core concepts: Unique properties of carbon — tetravalency, catenation. Saturated and unsaturated compounds. Homologous series. Functional groups: -OH (alcohol), -COOH (carboxylic acid), -CHO (aldehyde), -CO- (ketone), -X (halide). IUPAC nomenclature. Chemical properties: combustion, oxidation, addition, substitution. Soaps and detergents — cleansing action.
• Exam tip: IUPAC naming and identifying functional groups are tested in both objective and descriptive sections. Practice naming 20+ compounds. The micelle formation diagram for soap cleansing is a popular 3-mark question.

Chapter 10: Space Missions

• Core concepts: ISRO's major missions — Chandrayaan, Mangalyaan, satellite launches. Types of orbits. India's contribution to space technology. Communication satellites and their uses.
• Exam tip: This is a low-weightage but easy-to-score chapter. Focus on key missions, their dates, and objectives. Questions are mostly factual.

Science II: Chapter-Wise Notes

Chapter 1: Heredity and Evolution

• Core concepts: Mendel's experiments — monohybrid and dihybrid crosses. Genotype, phenotype, dominant, recessive traits. Sex determination (XX-XY system). DNA — structure and function. Evolution — natural selection, speciation, evidence from fossils, homologous and analogous organs. Human evolution timeline.
• Key ratios: Monohybrid 3:1, Dihybrid 9:3:3:1.
• Must-know diagrams: Monohybrid cross, sex determination chart, homologous vs analogous organs.
• Exam tip: The Mendel cross diagram with Punnett square is a 4-5 mark question. Practice drawing the complete cross with genotypes, gametes, and phenotypic ratios.

Chapter 2: Life Processes — Part 1 (Nutrition and Respiration)

• Core concepts: Autotrophic nutrition — photosynthesis (light and dark reactions), factors affecting photosynthesis. Heterotrophic nutrition — holozoic, saprophytic, parasitic. Human digestive system — organs and enzymes. Aerobic and anaerobic respiration. Human respiratory system — mechanism of breathing.
• Key formulas: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (photosynthesis). C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP (aerobic respiration).
• Must-know diagrams: Human digestive system, cross-section of leaf showing photosynthesis, alveoli structure.
• Exam tip: Diagram questions from this chapter carry 3-5 marks. Practice drawing and labelling the digestive system and respiratory system. Enzyme-substrate table (enzyme, source, substrate, product) is a popular 3-mark answer.

Chapter 3: Life Processes — Part 2 (Transportation and Excretion)

• Core concepts: Transportation in humans — heart structure and function, blood composition, double circulation, blood groups, blood pressure. Transportation in plants — xylem and phloem, transpiration. Excretion in humans — kidney structure, nephron, urine formation. Excretion in plants.
• Must-know diagrams: Cross-section of heart, nephron structure, xylem and phloem transport.
• Exam tip: The heart diagram with labelling is a guaranteed question. Know the direction of blood flow through all four chambers. Nephron function (filtration → reabsorption → secretion) is a common 3-mark answer. For study techniques, see the science study guide.

Chapter 4: Environmental Management

• Core concepts: Biodiversity and conservation. Pollution — air, water, soil, noise — causes, effects, and prevention. Waste management — 3Rs, composting, biogas. Sustainable development principles. Environmental laws and awareness.
• Exam tip: This chapter has mostly theoretical questions. Create a comparison table (type of pollution, causes, effects, solutions) for a comprehensive revision.

Chapter 5: Green Energy

• Core concepts: Need for renewable energy. Solar energy — solar cells, solar panels, solar water heater. Wind energy — windmills. Hydroelectric power. Biomass energy — biogas plant. Geothermal and tidal energy. Advantages and disadvantages of each source.
• Exam tip: Comparison questions ("Compare solar energy with wind energy") are common 2-3 mark questions. Know the biogas plant diagram and working.

Chapter 6: Animal Classification

• Core concepts: Basis of classification. Major phyla: Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Arthropoda, Mollusca, Echinodermata, Chordata. Key characteristics of each phylum with examples. Vertebrate classification — Pisces, Amphibia, Reptilia, Aves, Mammalia.
• Exam tip: Make a comparison table: phylum, body plan, examples, unique features. Classification tree diagrams are useful for revision. MCQs frequently test which organism belongs to which phylum.

Chapter 7: Cell Biology and Biotechnology

• Core concepts: Cell structure — cell membrane, nucleus, cytoplasm, organelles (mitochondria, ribosomes, ER, Golgi, lysosomes). DNA structure and replication basics. Cell division — mitosis and meiosis. Biotechnology — genetic engineering concepts, GMOs, applications in medicine and agriculture.
• Must-know diagrams: Animal cell, plant cell, DNA double helix, stages of mitosis.
• Exam tip: Well-labelled cell diagrams carry 3-4 marks. Know the function of each organelle. Biotechnology applications are tested as short-answer questions.

Chapter 8: Introduction to Microbiology

• Core concepts: Types of microorganisms — bacteria (shapes, reproduction), viruses (structure, diseases), fungi (yeast, moulds), protozoa. Useful microorganisms — fermentation, antibiotics, nitrogen fixation. Harmful microorganisms — diseases caused by bacteria (TB, cholera), viruses (COVID, influenza), fungi, protozoa (malaria). Sterilization and pasteurization.
• Exam tip: Disease-pathogen-transmission-prevention tables are popular 3-mark answers. Know at least 5 useful and 5 harmful microorganisms.

Chapter 9: Social Health

• Core concepts: Personal and community health. Communicable and non-communicable diseases. Substance abuse — alcohol, tobacco, drugs — effects on health. Mental health awareness. First aid basics. Government health programmes.
• Exam tip: This is a straightforward chapter. Focus on effects of substance abuse and prevention measures for communicable diseases.

Chapter 10: Disaster Management

• Core concepts: Natural disasters — earthquakes, floods, cyclones, tsunamis, droughts. Man-made disasters — industrial accidents, nuclear disasters. Disaster preparedness and mitigation. Role of NDMA. Do's and don'ts during disasters.
• Exam tip: This carries low marks but questions are easy. Focus on preparedness steps for earthquakes and floods — these are most commonly asked.

How to Use These Notes

Maharashtra SSC Science requires preparation for two separate papers, which means your study strategy needs to account for this split:

1. Treat Science I and Science II as separate subjects: Allocate separate study time for each. Science I needs more practice of numericals and diagrams, while Science II needs memorization of biological processes and classification.

2. Master the MH Board textbook: Unlike NCERT-following boards, Maharashtra Board questions come directly from the state textbook. Read the textbook thoroughly and solve all in-text and end-of-chapter questions.

3. Focus on the new paper pattern: The reduced paper pattern (60% shorter) means fewer questions but potentially trickier ones. Practice from Maharashtra SSC model papers to understand the new format.

4. Diagram practice for both papers: Science I requires physics diagrams (circuits, ray diagrams, motor/generator). Science II requires biology diagrams (heart, digestive system, cell, nephron). Spend 15 minutes daily on diagram practice.

5. Use the Maharashtra Board last 30 days strategy to plan your final revision across both Science papers.

6. Solve the objective section confidently: Both papers have MCQs and short-answer sections. Quick recall of definitions, formulas, and key facts is essential. Use flashcards for daily revision.

Priority Chapters by Weightage

Frequently Asked Questions

How many papers are there in Maharashtra SSC Science?

Maharashtra SSC Science has two separate papers — Science I (Physics + Chemistry) covering 10 chapters and Science II (Biology + Applied Science) covering 10 chapters. Each paper carries 40 marks for written examination plus 10 marks for oral/practical, totaling 100 marks combined.

Is Maharashtra SSC Science syllabus different from CBSE?

Yes, significantly different. Maharashtra Board follows its own state textbook with unique chapter names and content organization. While some topics overlap with NCERT (like Chemical Reactions, Life Processes), the chapter structure, depth, and emphasis are different. Maharashtra includes unique chapters like Space Missions, Social Health, and Disaster Management that CBSE does not have.

What is the new paper pattern for Maharashtra SSC 2027?

The 2027 exam follows a new reduced paper pattern where the question paper length has been shortened by approximately 60%. The total marks remain the same (40 marks per paper), but the number of questions and paper duration have been adjusted. Check the Maharashtra SSC model paper 2027 for the exact new format.

Which chapters are most important for Science I?

Chemical Reactions and Equations (Chapter 3), Effects of Electric Current (Chapter 4), and Refraction of Light + Lenses (Chapters 6-7) are the highest-weightage chapters in Science I. Together, they account for approximately 18-22 marks out of 40.

How should I prepare for Science II diagrams?

Science II relies heavily on biological diagrams. Key diagrams include: human digestive system, heart cross-section, nephron, human brain, animal and plant cells, monohybrid cross, and flower structure. Practice drawing each diagram at least 5 times with proper labels. Use a pencil for neat diagrams.

Can I score 80+ out of 100 in Maharashtra SSC Science?

Yes, scoring 80+ requires systematic preparation of both papers. Complete the MH Board textbook, practice all in-text questions, solve at least 3 model papers per paper, master all key diagrams, and practice numericals from Physics chapters. The Maharashtra Board important questions guide identifies the most likely questions for 2027.

Related Guides

• Maharashtra Board Class 10 Science Chapter-Wise Marks Weightage 2027
• Maharashtra SSC Class 10 Model Paper 2027 — New Pattern
• Maharashtra SSC Important Questions 2027
• Maharashtra HSC Last 30 Days All Streams Subject-Wise Strategy 2027
• How to Study Science Effectively for Board Exams
• Board Exam Answer Sheet — How to Write for Maximum Marks

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