Maharashtra Board Class 10 Science Marks Weightage 2027 - SSC Science Part 1 and Part 2

In short: Maharashtra Board SSC Class 10 Science 2027 is split into two papers. Science Part 1 covers Physics and Chemistry (40 marks, 2 hours). Science Part 2 covers Biology and Environmental Science (40 marks, 2 hours). Internal assessment adds 20 marks (10 per paper). Total Science marks: 100. Focus on Electricity, Chemical Reactions, Life Processes, and Genetics for maximum returns.

How Maharashtra Science Is Structured

Maharashtra Board follows a unique two-paper system for Science, similar to how it handles Mathematics. Instead of one combined 80-mark paper like CBSE, you write two separate papers on different days:

• Science Part 1 (General Science Paper 1): Physics + Chemistry, 40 marks theory, 2 hours
• Science Part 2 (General Science Paper 2): Biology + Environmental Science, 40 marks theory, 2 hours
• Internal Assessment: 10 marks per paper (practicals, projects, oral)

This split means you can prepare for Physics and Chemistry together, then shift focus to Biology separately. It also means each paper is shorter and less exhausting than a single 80-mark exam.

The Maharashtra State Board textbook covers 9 chapters in Part 1 and 10 chapters in Part 2, though the exact number may vary slightly by year. Here is the complete breakdown.

Science Part 1: Physics + Chemistry (40 Marks)

Paper Structure

Time allowed: 2 hours. All questions are compulsory with internal choices in long-answer questions.

Chapter-Wise Weightage: Physics Section (approximately 20 marks)

Gravitation (4-5 marks)

• Newton's law of gravitation, acceleration due to gravity.
• Mass and weight, free fall.
• Kepler's laws of planetary motion.

This chapter has both theory and numericals. Practice problems on gravitational force calculations and weight on different planets.

Periodic Classification of Elements (3-4 marks)

• Modern periodic table, properties, and trends.
• Electronic configuration and position in the table.

Theory-based with comparison questions. Learn the trends in atomic radius, ionization energy, and electronegativity.

Chemical Reactions and Equations (5-6 marks)

• Types of chemical reactions: combination, decomposition, displacement, double displacement, redox.
• Balancing equations and writing word equations.
• Effects of oxidation and reduction in everyday life (corrosion, rancidity).

This is the highest-scoring chapter in Part 1. Every paper has questions from this chapter. Master balancing equations and identifying reaction types.

Effects of Electric Current (5-6 marks)

• Ohm's Law, resistance, heating effect of current.
• Magnetic effects of current, electromagnetic induction.
• Electric motor and generator.

Numericals on Ohm's Law and heating effect (H = I2Rt) are regular. Draw neat circuit diagrams and labelled diagrams of the electric motor and generator.

Heat (3-4 marks)

• Specific heat capacity, latent heat.
• Anomalous expansion of water.
• Heat transfer: conduction, convection, radiation.

Short numerical problems on calorimetry dominate this section.

Refraction of Light (4-5 marks)

• Laws of refraction, Snell's law.
• Refraction through glass slab and prisms.
• Lenses: image formation, ray diagrams, and lens formula.

Ray diagrams and numericals using the lens formula are important. Practice drawing image formation for convex and concave lenses at different object positions.

Chapter-Wise Weightage: Chemistry Section (approximately 20 marks)

Acids, Bases and Salts (4-5 marks)

• Properties, indicators, pH scale.
• Reactions and salt preparation.

Metals and Non-Metals (3-4 marks)

• Physical and chemical properties, reactivity series.
• Extraction and corrosion.

Carbon Compounds (4-5 marks)

• Covalent bonding in carbon compounds.
• Homologous series, nomenclature.
• Functional groups and chemical properties of ethanol and ethanoic acid.

Maharashtra Board gives good weightage to carbon compounds. Learn structural formulae, IUPAC names for the first 5 members of alkanes, alkenes, and alkynes.

Oxidation and Reduction (3-4 marks)

• Oxidation and reduction reactions, oxidizing and reducing agents.
• Everyday applications of redox reactions.

Part 1 Priority Matrix

Tier 1 (Maximum focus): Chemical Reactions and Equations, Effects of Electric Current, Refraction of Light, Carbon Compounds = 18-22 marks combined

Tier 2 (Important): Acids Bases Salts, Gravitation, Metals and Non-Metals = 10-14 marks combined

Tier 3 (Quick revision): Heat, Periodic Classification, Oxidation and Reduction = 8-12 marks combined

Science Part 2: Biology + Environmental Science (40 Marks)

Paper Structure

Time allowed: 2 hours.

Chapter-Wise Weightage: Biology Section (approximately 32-35 marks)

Life Processes (6-8 marks)

• Nutrition: autotrophic and heterotrophic.
• Respiration: aerobic and anaerobic.
• Transportation in humans and plants.
• Excretion in humans and plants.

This is the largest and most important chapter. Diagrams of the human digestive system, heart (double circulation), nephron, and stomata are frequently asked. Expect at least one 5-mark question from this chapter.

Control and Coordination (4-5 marks)

• Nervous system: neuron, reflex arc, brain.
• Hormones in humans and plant hormones (auxins, gibberellins).

Diagrams of the neuron and brain with labelled parts are common. Know the differences between nervous and hormonal control.

How Do Organisms Reproduce (5-6 marks)

• Asexual reproduction methods.
• Sexual reproduction in plants (flower structure, pollination, fertilization).
• Human reproductive system and reproductive health.

Another high-weightage chapter. Diagram of the flower with labelled parts and the human reproductive system are important.

Heredity and Evolution (5-6 marks)

• Mendel's experiments and laws of inheritance.
• Monohybrid and dihybrid crosses.
• Sex determination, speciation, evolution.

Punnett squares and the 3:1 ratio explanation are guaranteed questions. The evolution section (homologous and analogous organs, fossils) carries 2-3 marks.

Organisation of Life (3-4 marks)

• Cell structure and cell organelles.
• Levels of organization: cell, tissue, organ, system.

Growth and Development (2-3 marks)

• Stages of embryonic development.
• Regeneration and aging.

Chapter-Wise Weightage: Environmental Science Section (approximately 5-8 marks)

Our Environment (3-4 marks)

• Ecosystem, food chains, food webs.
• Biodiversity and the 10% energy transfer law.

Management of Natural Resources (2-4 marks)

• Conservation of forests, water, coal, petroleum.
• 3 R's: Reduce, Reuse, Recycle.
• Chipko Movement and related movements.

Part 2 Priority Matrix

Tier 1 (Maximum focus): Life Processes, Heredity and Evolution, How Do Organisms Reproduce = 16-20 marks combined

Tier 2 (Important): Control and Coordination, Our Environment, Organisation of Life = 10-14 marks combined

Tier 3 (Quick revision): Management of Natural Resources, Growth and Development = 4-7 marks combined

Study Time Allocation

If you have 50 days before exams, here is a recommended split:

• Science Part 1 Physics chapters: 10 days
• Science Part 1 Chemistry chapters: 8 days
• Science Part 2 Biology chapters: 12 days
• Science Part 2 Environment chapters: 3 days
• Revision + solving previous year papers: 10 days
• Internal assessment preparation: 7 days

Since the two papers are on different days, you can split your preparation into two phases. Prepare Part 1 first if its exam comes first, then shift fully to Part 2.

Common Mistakes That Cost Marks

1. Not reading the Maharashtra Board textbook thoroughly. Unlike CBSE where NCERT is the primary source, Maharashtra Board questions come from the state textbook. Do not rely only on guides or reference books.
2. Ignoring diagram labels. Maharashtra Board awards separate marks for diagrams and labels. An unlabelled diagram gets partial marks at best.
3. Skipping numericals in Part 1. Physics chapters have 10-12 marks worth of numericals. Students who avoid numericals lose easy marks. Practice at least 5 numericals per chapter.
4. Writing too much for 2-mark questions. Stick to 2-3 lines for short answers. Time management is crucial in a 40-mark, 2-hour paper.
5. Neglecting Environmental Science. It carries 5-8 marks in Part 2 and the content is easy. A 2-hour revision can get you full marks from this section.

Scoring Strategy

Target breakdown for each paper:

Part 1 (Target 34/40):

• MCQs: 9/10
• Short Answers: 12/14
• Long Answers: 13/16

Part 2 (Target 34/40):

• MCQs: 9/10
• Short Answers: 12/14
• Long Answers: 13/16

With 8-9 marks from internal assessment per paper, your total Science score would be 84-86 out of 100.

For a broader view of Maharashtra SSC preparation, check out our Maharashtra Board Class 10 Maths chapter-wise marks weightage and the Maharashtra Board Class 10 SSC guide.

Frequently Asked Questions

How many Science papers are there in Maharashtra Board Class 10?

Maharashtra Board has two Science papers: Science Part 1 (Physics + Chemistry, 40 marks theory) and Science Part 2 (Biology + Environmental Science, 40 marks theory). Each paper also has 10 marks internal assessment, making the total 100 marks for Science. The two papers are held on separate days.

What is the passing mark for Maharashtra Board Science papers?

You need to score at least 35% in each paper separately. That means at least 14 out of 40 in the theory paper and a combined passing score when internal assessment is included. Since there are two papers, you must pass both Part 1 and Part 2 independently.

Is the Maharashtra Board Science textbook different from NCERT?

Yes. Maharashtra Board uses its own state-published textbook, not NCERT. While many concepts overlap, the chapter organization, examples, and question styles are different. Always study from the Maharashtra State Board textbook as the primary source, since exam questions are based directly on it.

Which chapters are most important for Science Part 1?

Chemical Reactions and Equations, Effects of Electric Current, and Refraction of Light together carry 15-17 marks out of 40 in Part 1. These three chapters should be your top priority. Carbon Compounds and Acids Bases Salts are the next most important.

How should I prepare for Science Part 2 diagrams?

Biology in Part 2 is diagram-heavy. Practice drawing and labelling at least 10 times each: Human Heart (double circulation), Nephron, Human Brain, Neuron, Flower structure, Human Reproductive System (male and female), and Stomata (open and closed). Use a sharp pencil and always add labels with neat lines.

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