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Class – 9-Notes (English Medium) Board- MSBSHSE Subject – Mathematics Part-1 Chapter 4 : Ratio and Proportion Price Rs. 6 – |
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PDF -MHT-CET-Biology Notes & MCQ
| Chapter Name | Notes | MCQ |
| Chapter 1: Biomolecules (Class-XI) | Not Available | Available |
| Chapter 2: Respiration and Energy Transfer (Class-XI) | Not Available | Available (MCQ-P-1)
Available (MCQ-P-2) |
| Chapter 3: Human Nutrition (Class-XI) | Not Available | Available |
| Chapter 4: Excretion and Osmoregulation (Class-XI) | Not Available | Available (MCQ-P-1)
Available (MCQ-P-2) Available (MCQ-P-3) |
| Chapter 5: Reproduction Lower and Higher Plants (Class-XII) | Not Available | Available (MCQ-P-1)
Available (MCQ-P-2) Available (MCQ-P-3) |
| Chapter 6: Reproduction in Lower and Higher Animals (Class-XII) | Not Available | Available (MCQ-P-1)
Available (MCQ-P-2) Available (MCQ-P-3) Available (MCQ-P-4) |
| Chapter 7: Inheritance and Variations (Class-XII) | Not Available | Available (MCQ-P-1)
Available (MCQ-P-2) Available (MCQ-P-3) Available (MCQ-P-4) |
| Chapter 8: Molecular Basis of Inheritance (Class-XII) | Not Available | Not Available |
| Chapter 9: Origin and Evolution of Life (Class-XII) | Not Available | Not Available |
| Chapter 10: Plant Water Relation and Plant Growth (Class-XII) | Not Available | Not Available |
| Chapter 11: Respiration and Circulation (Class-XII) | Not Available | Not Available |
| Chapter 12: Control and Coordination (Class-XII) | Not Available | Not Available |
| Chapter 13: Human Health and Diseases (Class-XII) | Not Available | Not Available |
| Chapter 14: Enhancement of Food Production (Class-XII) | Not Available | Not Available |
| Chapter 15: Biotechnology (Class-XII) | Not Available | Not Available |
| Chapter 16: Organisms and Population (Class-XII) | Not Available | Not Available |
| Chapter 17: Eco System and Energy Flow (Class-XII) | Not Available | Not Available |
| Chapter 18: Biodiversity, Conservation and Environmental Issues. (Class-XII) | Not Available | Not Available |
PDF -Science-Physics Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Rotational Dynamics | Available | Available |
| Chapter 2 Mechanical Properties of Fluids | Available | Available |
| Chapter 3 Kinetic Theory of Gases and Radiation | Available | Available |
| Chapter 4 Thermodynamics | Available | Available |
| Chapter 5 Oscillations | Available | Available |
| Chapter 6 Superposition of Waves | Available | Available |
| Chapter 7 Wave Optics | Available | Available |
| Chapter 8 Electrostatics | Available | Available |
| Chapter 9 Current Electricity | Available | Available |
| Chapter 10 Magnetic Fields due to Electric Current | Available | Available |
| Chapter 11 Magnetic Materials | Available | Available |
| Chapter 12 Electromagnetic induction | Available | Available |
| Chapter 13 AC Circuits | Available | Available |
| Chapter 14 Dual Nature of Radiation and Matter | Available | Available |
| Chapter 15 Structure of Atoms and Nuclei | Available | Available |
| Chapter 16 Semiconductor Devices | Available | Available |
Current offer for Class 12 Physics
Class -12 -Physics -All 16 Chapters Notes (16-PDF)-Rs.135
Class -12 -Physics -All 16 Chapters Solutions (16-PDF)-Rs.131
Class 12-Physics-All Notes and Solutions-Class-12-Physics-16 Chapters-Rs.244
PDF -Science-Chemistry Notes & Solutions-
| Chapter Name | Notes | Solutions |
| Chapter 1: Solid State | Available | Available |
| Chapter 2 Solutions | Available | Available |
| Chapter 3 Ionic Equilibria | Available | Available |
| Chapter 4 Chemical Thermodynamics | Available | Available |
| Chapter 5 Electrochemistry | Available | Available |
| Chapter 6 Chemical Kinetics | Available | Available |
| Chapter 7 Elements of Groups 16, 17 and 18 | Available | Available |
| Chapter 8 Transition and Inner transition Elements | Available | Available |
| Chapter 9 Coordination Compounds | Available | Available |
| Chapter 10 Halogen Derivatives | Available | Not Available |
| Chapter 11 Alcohols, Phenols and Ethers | Available | Not Available |
| Chapter 12 Aldehydes, Ketones and Carboxylic acids | Available | Not Available |
| Chapter 13 Amines | Available | Not Available |
| Chapter 14 Biomolecules | Available | Not Available |
| Chapter 15 Introduction to Polymer Chemistry | Available | Not Available |
| Chapter 16 Green Chemistry and Nano chemistry | Available | Not Available |
Current offer for Class 12 Chemistry
Class-12-Chemistry-All 16 Chapters Notes (16-PDF) Rs.137-Buy
PDF -Science-Biology Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1 Reproduction in Lower and Higher Plants | Available | Available |
| Chapter 2 Reproduction in Lower and Higher Animals | Available | Available |
| Chapter 3 Inheritance and Variation | Available | Available |
| Chapter 4 Molecular Basis of Inheritance | Available | Available |
| Chapter 5 Origin and Evolution of Life | Available | Available |
| Chapter 6 Plant Water Relation | Available | Available |
| Chapter 7 Plant Growth and Mineral Nutrition | Available | Available |
| Chapter 8 Respiration and Circulation | Available | Available |
| Chapter 9 Control and Co-ordination | Available | Available |
| Chapter 10 Human Health and Diseases | Available | Available |
| Chapter 11 Enhancement of Food Production | Available | Available |
| Chapter 12 Biotechnology | Available | Available |
| Chapter 13 Organisms and Populations | Available | Available |
| Chapter 14 Ecosystems and Energy Flow | Available | Available |
| Chapter 15 Biodiversity, Conservation and Environmental Issues | Available | Available |
Current offer for Class 12 Biology
All Chapters Notes-Class-12-Biology-(15-PDF)-Maharashtra Board-Rs-130-Buy
All Chapters Solutions-Class-12-Biology-(15-PDF)-Maharashtra Board-Rs-128-Buy
All Chapters Notes+Solutions-Class-12-Biology-(30-PDF)-Maharashtra Board-Rs-240-Buy
PDF -Science-Physics Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1 Units and Measurements | Available | Available |
| Chapter 2 Mathematical Methods | Available | Available |
| Chapter 3 Motion in a Plane | Available | Available |
| Chapter 4 Laws of Motion | Available | Available |
| Chapter 5 Gravitation | Available | Available |
| Chapter 6 Mechanical Properties of Solids | Available | Available |
| Chapter 7 Thermal Properties of Matter | Available | Available |
| Chapter 8 Sound | Available | Available |
| Chapter 9 Optics | Available | Available |
| Chapter 10 Electrostatics | Available | Available |
| Chapter 11 Electric Current Through Conductors | Available | Available |
| Chapter 12 Magnetism | Available | Available |
| Chapter 13 Electromagnetic Waves and Communication System | Available | Available |
| Chapter 14 Semiconductors | Available | Available |
Current offer for Class 11 Physics
All Chapters Notes-Class-11-Science-Physics-(14 PDF) Rs. 122-Buy
All Chapters Solutions-Class-11-Science-Physics-(14 PDF)
All Chapters Notes + Solutions-Class-11-Science-Physics-(28 PDF)
PDF -Science-Chemistry Notes & Solutions-
| Chapter Name | Notes | Solutions |
| Chapter 1: Some Basic Concepts of Chemistry | Available | Available |
| Chapter 2: Introduction to analytical chemistry | Available | Available |
| Chapter 3: Basic Analytical Techniques | Available | Available |
| Chapter 4: Structure of Atom | Available | Available |
| Chapter 5: Chemical Bonding | Available | Available |
| Chapter 6: Redox Reaction | Available | Available |
| Chapter 7: Modern Periodic Table | Available | Available |
| Chapter 8: Elements of Group 1 and 2 | Available | Available |
| Chapter 9: Elements of Group 13, 14 and 15 | Available | Available |
| Chapter 10: States of Matter | Available | Not Available |
| Chapter 11: Adsorption and Colloids | Available | Not Available |
| Chapter 12: Chemical Equilibrium | Available | Not Available |
| Chapter 13: Nuclear Chemistry and Radioactivity | Available | Not Available |
| Chapter 14: Basic Principles of Organic Chemistry | Available | Not Available |
| Chapter 15: Hydrocarbons | Available | Not Available |
| Chapter 16: Chemistry in Everyday Life | Available | Not Available |
Current offer for Class 11 Chemistry
PDF -Science-Biology Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1 Living World | Available | Available |
| Chapter 2 of Living Organisms | Available | Available |
| Chapter 3 Kingdom Plantae | Available | Available |
| Chapter 4 Kingdom Animalia | Available | Available |
| Chapter 5 Cell Structure and Organization | Available | Available |
| Chapter 6 Biomolecules | Available | Available |
| Chapter 7 Cell Division | Available | Available |
| Chapter 8 Plant Tissues and Anatomy | Available | Available |
| Chapter 9 Morphology of Flowering Plants | Available | Available |
| Chapter 10 Animal Tissue | Available | Available |
| Chapter 11 Study of Animal Type : Cockroach | Available | Available |
| Chapter 12 Photosynthesis | Available | Available |
| Chapter 13 Respiration and Energy Transfer | Available | Available |
| Chapter 14 Human Nutrition | Available | Available |
| Chapter 15 Excretion and Osmoregulation | Available | Available |
| Chapter 16 Skeleton and Movement | Available | Available |
Current offer for Class 11 Biology
All 16 Chapters Notes (16 PDF) Rs.125-Buy
PDF -Science-1 Notes, Solutions and QP
| Chapter Name | Notes | Solutions | QP |
| Chapter 1: Gravitation | Available | Available | MCQ |
| Chapter 2: Periodic Classification of Element | Available | Available | Test Paper |
| Chapter 3: Chemical reactions and equations | Available | Available | MCQ |
| Chapter 4: Effects of electric current | Available | Available | |
| Chapter 5: Heat | Available | Available | |
| Chapter 6: Refraction of light | Available | Available | |
| Chapter 7: Lenses | Available | Available | |
| Chapter 8: Metallurgy | Available | Available | |
| Chapter 9: Carbon compounds | Available | Available | |
| Chapter 10: Space Missions | Available | Available |
| Description | PDF Status |
| Physics Numerical Examples and Solutions- Chapter No -1,4,5,6,7 and 10 (Combine-1 PDF) | Available |
| Board QP with Solution-July-2023-Class-10-Science-1-Maharashtra Board | Available |
| Board QP with Solution-March-2023-Class-10-Science-1-Maharashtra Board | Available |
| Model QP-1 with Solution-Class-10-Science-1-Maharashtra Board | Available |
PDF -Science-2 Notes, Solutions and QP
| Chapter Name | Notes | Solutions | QP |
| Chapter 1: Heredity and Evolution | Available | Available | Test Paper |
| Chapter 2: Life Processes in living organisms Part-1 | Available | Available | Test Paper |
| Chapter 3: Life Processes in Living Organisms Part-2 | Available | Available | |
| Chapter 4: Environmental management | Available | Available | |
| Chapter 5: Towards Green Energy | Available | Available | |
| Chapter 6: Animal Classification | Available | Available | |
| Chapter 7: Introduction to Microbiology | Available | Available | |
| Chapter 8: Cell Biology and Biotechnology | Available | Available | |
| Chapter 9: Social health | Available | Available | |
| Chapter 10: Disaster Management | Available | Available |
| Description | PDF Status |
| Board QP with Solution-July-2023-Class-10-Science-2-Maharashtra Board | Available |
| Description | PDF Status |
| Science 1 & 2 all 20 Chapter Notes Set (20-PDF) -Rs.75 | Available |
| Science 1 & 2 all 20 Chapter Solutions Set (20-PDF) -Rs.75 | Available |
| Science 1 & 2 all 20 Chapter Notes+Solution Set (40 PDF) - Rs.130 | Available |
Math-Part-1 Notes & Practice Set Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Linear Equations in Two Variables | Available | Available |
| Chapter 2: Quadratic Equations | Available | Available |
| Chapter 3: Arithmetic Progression | Available | Available |
| Chapter 4: Financial Planning | Available | Available |
| Chapter 5: Probability | Available | Available |
| Chapter 6: Statistics | Available | Available |
Math-Part-2 Notes & Practice Set Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Similarity | Available | Available |
| Chapter 2: Pythagoras Theorem | Available | Available |
| Chapter 3: Circle | Available | Available |
| Chapter 4: Geometric Construction | Available | Available |
| Chapter 5: Co-ordinate Geometry | Available | Available |
| Chapter 6: Trigonometry | Available | Available |
| Chapter 7: Mensuration | Available | Available |
Current offer for Class 10 Mathematics
All Chapters Notes-Class-10-Mathematics-1 and 2- (13 PDF) Rs. 77 -Buy
All Chapters Solutions-Class-10-Mathematics-1 and 2- (13 PDF) Rs. 74 -Buy
All Chapters Notes + Practice Set Solutions-Class-10-Mathematics-1 and 2- (26 PDF) Rs.131-Buy
| Chapter Name | Notes | Solutions |
| Chapter 1: Historiography : Development in the West. | Available | Available |
| Chapter 2: Historiography : Indian Tradition | Available | Available |
| Chapter 3: Applied History | Available | Available |
| Chapter 4: History of Indian Arts | Available | Available |
| Chapter 5: Mass Media and History | Available | Available |
| Chapter 6: Entertainment and History | Available | Available |
| Chapter 7: Sports and History | Available | Available |
| Chapter 8: Tourism and History | Available | Available |
| Chapter 9: Heritage Management | Available | Available |
Current offer for Class 10 History
All Chapter Notes (9-PDF) Rs. 40-Buy
All Chapter Solutions (9-PDF) Rs. 40-Buy
All Notes + Solutions (18-PDF) Rs. 70-Buy
All Notes History+Civic (14 PDF)-Rs-55-Buy
All Solutions History+Civic (14 PDF)-Rs-54-Buy
All Notes+Solution (History+Civic) (28 PDF)-Rs-100-Buy
All Notes History+Civic+Geography (23 PDF)-Rs-85-Buy
All Solutions History+Civic+Geography (23 PDF)-Rs-85-Buy
All Notes + Solutions -History+Civic+Geography (46 PDF)-Rs-145-Buy
PDF - Civic - Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Working of the Constitution | Available | Available |
| Chapter 2: The Electoral Process | Available | Available |
| Chapter 3: Political Parties | Available | Available |
| Chapter 4: Social and Political Movements | Available | Available |
| Chapter 5: Challenges faced by Indian Democracy | Available | Available |
Current offer for Class 10 Civic
All Chapter Notes (10-PDF) = Rs.20
All Chapter Solutions (5-PDF) = Rs. 20
All Chapter Notes + Solution (10-PDF) = Rs. 35
All Notes History+Civic (14 PDF)-Rs-55-Buy
All Solutions History+Civic (14 PDF)-Rs-54-Buy
All Notes+Solution (History+Civic) (28 PDF)-Rs-100-Buy
All Notes History+Civic+Geography (23 PDF)-Rs-85-Buy
All Solutions History+Civic+Geography (23 PDF)-Rs-85-Buy
All Notes + Solutions -History+Civic+Geography (46 PDF)-Rs-145-Buy
PDF - Geography-Notes
| Chapter Name | Notes | Solutions |
| Chapter 1: Field Visit | Available | Available |
| Chapter 2: Location and Extent | Available | Available |
| Chapter 3: Physiography and Drainage | Available | Available |
| Chapter 4: Climate | Available | Available |
| Chapter 5: Natural Vegetation and Wildlife | Available | Available |
| Chapter 6: Population | Available | Available |
| Chapter 7: Human Settlements | Available | Available |
| Chapter 8: Economy and Occupations | Available | Available |
| Chapter 9: Tourism, Transport and Communication | Available | Available |
Current offer for Class 10 Geography
All Chapter Notes (9-PDF) = Rs 40-Buy
All Chapter Solutions (9-PDF) = Rs 40-Buy
All Notes + Solutions (18-PDF) Rs. 65-Buy
All Notes History+Civic+Geography (23 PDF)-Rs-85-Buy
All Solutions History+Civic+Geography (23 PDF)-Rs-85-Buy
All Notes + Solutions -History+Civic+Geography (46 PDF)-Rs-145-Buy
PDF -Science- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Laws of Motion | Available | Available |
| Chapter 2: Work and Energy | Available | Available |
| Chapter 3: Current Electricity | Available | Available |
| Chapter 4: Measurement of Matter | Available | Available |
| Chapter 5: Acids, Bases and Salts | Available | Available |
| Chapter 6: Classification of Plants | Available | Available |
| Chapter 7: Energy Flow in an Ecosystem | Available | Available |
| Chapter 8: Useful and Harmful Microbes | Available | Available |
| Chapter 9: Environmental Management | Available | Available |
| Chapter 10: Information Communication Technology (ICT) | Available | Available |
| Chapter 11: Reflection of Light | Available | Available |
| Chapter 12: Study of Sound | Available | Available |
| Chapter 13: Carbon : An important element | Available | Available |
| Chapter 14: Substances in Common Use | Available | Available |
| Chapter 15: Life Processes in Living Organisms | Available | Available |
| Chapter 16: Heredity and Variation | Available | Available |
| Chapter 17: Introduction to Biotechnology | Available | Available |
| Chapter 18: Observing Space : Telescopes | Available | Available |
Current offer for Class 9 Science
PDF -Math-Part-1 Notes & Exercise Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Sets | Available | Available |
| Chapter 2: Real Numbers | Available | Not Available |
| Chapter 3: Polynomials | Available | Not Available |
| Chapter 4: Ratio and Proportion | Available | Not Available |
| Chapter 5: Linear Equations in two variables | Not Available | Not Available |
| Chapter 6: Financial Planning | Not Available | Not Available |
| Chapter 7: Statistics | Not Available | Not Available |
PDF -Math-Part-2 Notes & Exercise Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Basic Concepts in Geometry | Available | Available |
| Chapter 2: Parallel Lines | Available | Not Available |
| Chapter 3: Triangles | Available | Not Available |
| Chapter 4: Constructions of Triangles | Not Available | Not Available |
| Chapter 5: Quadrilaterals | Not Available | Not Available |
| Chapter 6: Circle | Not Available | Not Available |
| Chapter 7: Co-ordinate Geometry | Not Available | Not Available |
| Chapter 8: Trigonometry | Not Available | Not Available |
| Chapter 9: Surface Area and Volume | Not Available | Not Available |
Current offer for Class 9 Mathematics
PDF -History- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Sources of History | Available | Available |
| Chapter 2: India : Events after 1960 | Available | Available |
| Chapter 3: India’s Internal Challenges | Available | Available |
| Chapter 4: Economic Development | Available | Available |
| Chapter 5: Education | Available | Available |
| Chapter 6: Empowerment of Women and other weaker sections | Available | Available |
| Chapter 7: Science and Technology | Available | Available |
| Chapter 8: Industry and Trade | Available | Available |
| Chapter 9: Changing Life : 1 | Available | Available |
| Chapter 10: Changing Life : 2 | Available | Available |
Current offer for Class 9 History
All 10 Chapters Notes (10-PDF) Rs.40-Buy
All 10 Chapters Solution (10-PDF) Rs.40-Buy
All 10 Chapters Notes+Solution (20-PDF) Rs.70-Buy
All Notes History+Civic (16 PDF)-Rs-55-Buy
All Solutions History+Civic (16 PDF)-Rs-55-Buy
All Notes+Solutions History+Civic (32 PDF)-Rs-100-Buy
All Notes-Social Science (Hist.+Civic+Geo) (28-PDF) Rs.95-Buy
All Solutions- Social Science (Hist.+Civic+Geo) (28-PDF) Rs.95-Buy
All Notes+Solutions- Social Science (Hist.+Civic+Geo) (56-PDF) Rs.175-Buy
PDF -Civics- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Post World War Political Developments | Available | Available |
| Chapter 2. India’s Foreign Policy | Available | Available |
| Chapter 3. India’s Defence System | Available | Available |
| Chapter 4. The United Nations | Available | Available |
| Chapter 5. India and Other Countries | Available | Available |
| Chapter 6. International Problems | Available | Available |
Current offer for Class 9 Civics
All Chapters Notes (6-PDF) Rs.25-Buy
All Chapters Solution (6-PDF) Rs.25-Buy
All Notes+Solutions Civic (12 PDF)-Rs-40-Buy
All Notes History+Civic (16 PDF)-Rs-55-Buy
All Solutions History+Civic (16 PDF)-Rs-55-Buy
All Notes+Solutions History+Civic (32 PDF)-Rs-100-Buy
All Notes Social Science (Hist.+Civic+Geo) (28-PDF) Rs.95-Buy
All Solutions- Social Science (Hist.+Civic+Geo) (28-PDF) Rs.95-Buy
All Notes+Solutions- Social Science (Hist.+Civic+Geo) (56-PDF) Rs.175-Buy
PDF -Geography- Notes & Solutions.
| Chapter Name | Notes | Solutions |
| Chapter 1: Distributional Maps | Available | Available |
| Chapter 2: Endogenetic Movements | Available | Available |
| Chapter 3: Exogenetic Processes Part-1 | Available | Available |
| Chapter 4: Exogenetic Processes Part-2 | Available | Available |
| Chapter 5: Precipitation | Available | Available |
| Chapter 6: The Properties of Sea Water | Available | Available |
| Chapter 7: International Date Line | Available | Available |
| Chapter 8: Introduction to Economics | Available | Available |
| Chapter 9: Trade | Available | Available |
| Chapter 10: Urbanisation | Available | Available |
| Chapter 11: Transport and Communication | Available | Available |
| Chapter 12: Tourism | Available | Available |
Current offer for Class 9 Geography
All Chapters Notes (12-PDF) Rs.50-Buy
All Chapters Solutions (12-PDF) Rs.50-Buy
All Chapters Notes+Solutions (24-PDF) Rs.80-Buy
All Notes- Social Science Notes(Hist.+Civic+Geo) (28-PDF) Rs.95-Buy
All Solutions- Social Science (Hist.+Civic+Geo) (28-PDF) Rs.95-Buy
All Notes+Solutions- Social Science (Hist.+Civic+Geo) (56-PDF) Rs.175-Buy
PDF -Science- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Living World and Classification of Microbes | Available | Available |
| Chapter 2: Health and Diseases | Available | Available |
| Chapter 3: Force and Pressure | Available | Available |
| Chapter 4: Current Electricity and Magnetism | Available | Available |
| Chapter 5: Inside the Atom | Available | Available |
| Chapter 6: Composition of Matter | Available | Available |
| Chapter 7: Metals and Nonmetals | Available | Available |
| Chapter 8: Pollution | Available | Available |
| Chapter 9: Disaster Management | Available | Available |
| Chapter 10: Cell and Cell Organelles | Available | Available |
| Chapter 11: Human Body and Organ System | Available | Available |
| Chapter 12: Introduction to Acid and Base | Available | Available |
| Chapter 13: Chemical Change and Chemical Bond | Available | Available |
| Chapter 14: Measurement and Effects of Heat | Available | Available |
| Chapter 15: Sound | Available | Available |
| Chapter 16: Reflection of Light | Available | Available |
| Chapter 17: Man made Materials | Available | Available |
| Chapter 18: Ecosystems | Available | Available |
| Chapter 19: Life Cycle of Stars | Available | Available |
Current offer for Class 8 Science
All Chapter Notes (19-PDF) Rs.70-Buy
PDF -Mathematics- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Rational and Irrational numbers | Available | Available |
| Chapter 2: Parallel lines and transversals | Not Available | Available |
| Chapter 3: Indices and Cube root | Not Available | Available |
| Chapter 4: Altitudes and Medians of a triangle | Not Available | Not Available |
| Chapter 5: Expansion formulae | Not Available | Not Available |
| Chapter 6: Factorisation of Algebraic expressions | Not Available | Not Available |
| Chapter 7: Variation | Not Available | Not Available |
| Chapter 8: Quadrilateral : Constructions and Types | Not Available | Not Available |
| Chapter 9: Discount and Commission | Not Available | Not Available |
| Chapter 10: Division of Polynomials | Not Available | Not Available |
| Chapter 11: Statistics | Not Available | Not Available |
| Chapter 12: Equations in one variable | Not Available | Not Available |
| Chapter 13: Congruence of triangles | Not Available | Not Available |
| Chapter 14: Compound interest | Not Available | Not Available |
| Chapter 15: Area | Not Available | Not Available |
| Chapter 16: Surface area and Volume | Not Available | Not Available |
| Chapter 17: Circle : Chord and Arc | Not Available | Not Available |
Current offer for Class 8 Mathematics
PDF -History- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Sources of History | Available | Available |
| Chapter 2: Europe and India | Available | Available |
| Chapter 3: Effects of British rule | Available | Available |
| Chapter 4: The Freedom Struggle of 1857 | Available | Available |
| Chapter 5: Social and Religious Reforms | Available | Available |
| Chapter 6: Beginning of Freedom Movement | Available | Available |
| Chapter 7: Non-co-operation Movement | Available | Available |
| Chapter 8: Civil Disobedience Movement | Available | Available |
| Chapter 9: Last Phase of Struggle for Independence | Available | Available |
| Chapter 10: Armed Revolutionary Movement | Available | Available |
| Chapter 11: Struggle for Equality | Available | Available |
| Chapter 12: India gains Independence | Available | Available |
| Chapter 13: Fulfillment of Struggle for Independence | Available | Available |
| Chapter 14: Formation of State of Maharashtra | Available | Available |
Current offer for Class 8 History
All Chapters Notes Class 8 History (14 PDF)-Rs.50- Buy
All Chapters Solution Class 8 History (14 PDF)-Rs.48- Buy
All Chapters Notes+Solutions Class 8 History (28 PDF)-Rs.84- Buy
All Chapters History and Civics Notes set (20 PDF) Rs. 60-Buy
All Chapters History and Civics Solutions set (20 PDF) Rs. 58-Buy
All Chapters History and Civics Notes + Solutions set (40 PDF) Rs. 98-Buy
All Chapters Social Science (History + Civics + Geography) Notes set (30 PDF) Rs. 85-Buy
All Chapters Social Science (History + Civics + Geography) Solutions set (29 PDF) Rs. 77-Buy
PDF -Civic- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Introduction to the Parliamentary System | Available | Available |
| Chapter 2: The Indian Parliament | Available | Available |
| Chapter 3: The Union Executive | Available | Available |
| Chapter 4: The Indian Judicial System | Available | Available |
| Chapter 5: The State Government | Available | Available |
| Chapter 6: Bureaucracy | Available | Available |
Current offer for Class 8 Civics
All Chapters Civics Notes set (6-PDF)Rs.25-Buy
All Chapters Civics Solutions set (6-PDF)Rs.24-Buy
All Chapters Civics Notes + Solutions set (12-PDF)Rs.45-Buy
All Chapters History and Civics Notes set (20 PDF) Rs. 60-Buy
All Chapters History and Civics Solutions set (20 PDF) Rs. 58-Buy
All Chapters History and Civics Notes + Solutions set (40 PDF) Rs. 98-Buy
All Chapters Social Science (History + Civics + Geography) Notes set (30 PDF) Rs. 85-Buy
All Chapters Social Science (History + Civics + Geography) Solutions set (29 PDF) Rs. 77-Buy
PDF -Geography- Notes & Solutions.
| Chapter Name | Notes | Solutions |
| Chapter 1: Local Time and Standard Time | Available | Available |
| Chapter 2: Interior of the Earth | Available | Available |
| Chapter 3: Humidity and Clouds | Available | Available |
| Chapter 4: Structure of Ocean Floor | Available | Available |
| Chapter 5: Ocean Currents | Available | Available |
| Chapter 6: Land Use | Available | Available |
| Chapter 7: Population | Available | Available |
| Chapter 8: Industries | Available | Available |
| Chapter 9: Map Scale | Available | Available |
| Chapter 10: Field Visit Practical | Available | Not Applicable |
Current offer for Class 8 Geography
All Chapters Geography Notes set (10-PDF)Rs.35-Buy
All Chapters Geography Solutions set (9-PDF)Rs.28-Buy
All Chapters Geography Notes + Solutions set (19-PDF)Rs.57-Buy
All Chapters Social Science (History + Civics + Geography) Notes set (30 PDF) Rs. 85-Buy
All Chapters Social Science (History + Civics + Geography) Solutions set (29 PDF) Rs. 77-Buy
PDF -Science- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1 : The Living World : Adaptations and Classification | Available | Available |
| Chapter 2 : Plants : Structure and Function | Available | Available |
| Chapter 3 : Properties of Natural Resources | Available | Available |
| Chapter 4 : Nutrition in Living Organisms | Available | Available |
| Chapter 5 : Food Safety | Available | Available |
| Chapter 6 : Measurement of Physical Quantities | Available | Available |
| Chapter 7 : Motion, Force and Work | Available | Available |
| Chapter 8 : Static Electricity | Available | Available |
| Chapter 9 : Heat-Available | Available | Available |
| Chapter 10 : Disaster Management | Available | Available |
| Chapter 11 : Cell Structure and Micro-organisms | Available | Available |
| Chapter 12 : The Muscular System and Digestive System in Human Beings | Available | Available |
| Chapter 13 : Changes - Physical and Chemical | Available | Available |
| Chapter 14 : Elements, Compounds and Mixtures | Available | Available |
| Chapter 15 : Materials we Use | Available | Available |
| Chapter 16 : Natural Resources | Available | Available |
| Chapter 17 : Effects of Light | Available | Available |
| Chapter 18: Sound : Production of Sound | Available | Available |
| Chapter 19 : Properties of a Magnetic Field | Available | Available |
| Chapter 20 : In the World of Stars | Available | Available |
Current offer for Class 7 Science
All Chapter Notes (20 PDF)- Rs.70-Buy
PDF -History- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Sources of History | Available | Available |
| Chapter 2: India before the Times of Shivaji Maharaj | Available | Available |
| Chapter 3: Religious Synthesis | Available | Available |
| Chapter 4: Maharashtra before the Times of Shivaji Maharaj | Available | Available |
| Chapter 5: The Foundation of the Swaraj | Available | Available |
| Chapter 6: Conflict with the Mughals | Available | Available |
| Chapter 7: The Administration of the Swaraj | Available | Available |
| Chapter 8: An Ideal Ruler | Available | Available |
| Chapter 9: The Maratha War of Independence | Available | Available |
| Chapter 10: The Expansion of the Maratha Power | Available | Available |
| Chapter 11: Marathas - The Protectors of the Nation | Available | Available |
| Chapter 12: Progression of the Empire | Available | Available |
| Chapter 13: Life of the People in Maharashtra. | Available | Available |
Current offer for Class 7 History
All 13 Chapters Notes set (13 PDF) Rs.45-Buy (History)
All 13 Chapters Solutions set (13 PDF) Rs.40-Buy (History)
All 13 Chapters Notes + Solutions set (26 PDF) Rs.70-Buy (History)
All Notes History+Civics set (19 PDF) Rs.60-Buy
All Solutions History+Civics set (19 PDF) Rs.52-Buy
All Notes + Solutions History+Civics set (38 PDF) Rs.85-Buy
All Notes Set -Social Science (History+Civic+Geography-30-PDF) Rs. 80-Buy
All Solutions Set -Social Science (History_Civic+Geography-29-PDF) Rs. 72-Buy
All Notes + Solutions Set -Social Science (History_Civic+Geography-59-PDF) Rs. 135-Buy
PDF -Civics- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Introduction to our Constitution | Available | Available |
| Chapter 2: Preamble to the Constitution | Available | Available |
| Chapter 3: Features of the Constitution | Available | Available |
| Chapter 4: Fundamental Rights – Part I | Available | Available |
| Chapter 5: Fundamental Rights – Part II | Available | Available |
| Chapter 6: Directive Principles of State Policy and Fundamental Duties | Available | Available |
Current offer for Class 7 - Civics
All Chapter Notes Set (6-PDF) Rs. 20-Buy (Civics)
All Chapter Solutions Set (6-PDF) Rs. 20-Buy (Civics)
All Chapter Notes + Solutions Set (12-PDF) Rs. 35-Buy (Civics)
All Notes History+Civics set (19 PDF) Rs.60-Buy
All Solutions History+Civics set (19 PDF) Rs.52-Buy
All Notes + Solutions History+Civics set (38 PDF) Rs.85-Buy
All Notes Set -Social Science (History_Civic+Geography-30-PDF) Rs. 80-Buy
All Solutions Set -Social Science (History_Civic+Geography-29-PDF) Rs. 72-Buy
All Notes + Solutions Set -Social Science (History_Civic+Geography-59-PDF) Rs. 135-Buy
PDF -Geography- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1 : How Seasons Occur | Available | Not Applicable |
| Chapter 2 : The Sun, the Moon and the Earth | Available | Available |
| Chapter 3 : Tides | Available | Available |
| Chapter 4 : Air Pressure | Available | Available |
| Chapter 5 : Winds | Available | Available |
| Chapter 6 : Natural Regions | Available | Available |
| Chapter 7 : Soils | Available | Available |
| Chapter 8 : How Seasons Occur | Available | Available |
| Chapter 9 : Agriculture | Available | Available |
| Chapter 10 : Human Settlements | Available | Available |
| Chapter 11 : Contour Maps and Land forms | Available | Available |
Current offer for Class 7 - Geography
All Chapter Notes Set (11-PDF) Rs. 35-Buy
All Chapter Solutions Set (10-PDF) Rs. 28-Buy
All Chapter Notes + Solutions Set (21-PDF) Rs. 55-Buy
All Notes -Social Science (History_Civic+Geography-30-PDF) Rs. 80-Buy
All Solutions -Social Science (History_Civic+Geography-29-PDF) Rs. 72-Buy
All Notes + Solutions -Social Science (History_Civic+Geography-59-PDF) Rs. 135-Buy
PDF -Science- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Natural Resources – Air, Water and Land | Available | Available |
| Chapter 2 :The Living World | Available | Available |
| Chapter 3 :Diversity in Living Things and their Classification | Available | Available |
| Chapter 4 :Disaster Management | Available | Available |
| Chapter 5 : Substances in the Surroundings –Their States and Properties | Available | Available |
| Chapter 6 : Substances in Daily Use | Available | Available |
| Chapter 7 : Nutrition and Diet | Available | Available |
| Chapter 8 : Our Skeletal System and the Skin | Available | Available |
| Chapter 9 : Motion and Types of Motion | Available | Available |
| Chapter 10: Force and Types of Force | Available | Available |
| Chapter 11 : Work and Energy | Available | Available |
| Chapter 12 : Simple Machines | Available | Available |
| Chapter 13 : Sound | Available | Available |
| Chapter 14 : Light and the Formation of Shadows | Available | Available |
| Chapter 15 : Fun with Magnets | Available | Available |
| Chapter 16 : The Universe | Available | Available |
Current offer for Class 6 Science
All Chapters Notes (16-PDF)-Rs. 50-Buy
PDF -History- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1 : The Indian Subcontinent and History | Available | Available |
| Chapter 2 : Sources of History | Available | Available |
| Chapter 3 : The Harappan Civilization | Available | Available |
| Chapter 4 : The Vedic Civilization | Available | Available |
| Chapter 5 : Religious Trends in Ancient India | Available | Available |
| Chapter 6 : Janapadas and Mahajanapadas | Available | Available |
| Chapter 7 : India during the Maurya Period | Available | Available |
| Chapter 8 : States after the Maurya Empire | Available | Available |
| Chapter 9 : Ancient Kingdoms of the South | Available | Available |
| Chapter 10 : Ancient India : Cultural | Available | Available |
| Chapter 11 : Ancient India and the World | Available | Available |
Current offer for Class 6 History
All Chapters Notes (11-PDF)-Rs. 40-Buy
All Chapters Solutions (11-PDF)-Rs. 36-Buy
All Chapters Notes + Solutions (22-PDF)-Rs. 62-Buy
All Chapters Notes History and Civics (16-PDF)-Rs. 50-Buy
All Chapters Solutions History and Civics (16-PDF)-Rs. 45-Buy
All Chapters Notes + Solutions History and Civics (32-PDF)-Rs. 72-Buy
All Chapters Notes History+Civics+Geography-(26-PDF)-Rs-75-Buy
All Chapters Solutions History+Civics+Geography-(26-PDF)-Rs-68-Buy
All Chapters Notes + Solutions History+Civics+Geography-(52-PDF)-Rs-104-Buy
PDF -Civics- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Our Life in our Society | Available | Available |
| Chapter 2: Diversity in our Society | Available | Available |
| Chapter 3: Rural Local Government Bodies | Available | Available |
| Chapter 4: Urban Local Government Bodies | Available | Available |
| Chapter 5: District Administration | Available | Available |
Current offer for Class 6 Civics
All Chapters notes (5-PDF) Rs.18
All Chapters Solutions (5-PDF) Rs.17
All Chapters Notes+ Solutions (10-PDF) Rs.27
All Chapters Notes History and Civics (16-PDF)-Rs. 50-Buy
All Chapters Solutions History and Civics (16-PDF)-Rs. 45-Buy
All Chapters Notes + Solutions History and Civics (32-PDF)-Rs. 72-Buy
All Chapters Notes History+Civics+Geography-(26-PDF)-Rs-75-Buy
All Chapters Solutions History+Civics+Geography-(26-PDF)-Rs-68-Buy
All Chapters Notes + Solutions History+Civics+Geography-(52-PDF)-Rs-104-Buy
PDF -Geography- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: The Earth and the Graticule | Available | Available |
| Chapter 2: Let us Use the Graticule | Available | Available |
| Chapter 3: .Comparing a Globe and a Map; | Available | Available |
| Chapter 4: Weather and Climate | Available | Available |
| Chapter 5: Temperature | Available | Available |
| Chapter 6: Importance of Oceans | Available | Available |
| Chapter 7: Rocks and Rock Types | Available | Available |
| Chapter 8: Natural Resources | Available | Available |
| Chapter 9: Energy Resources | Available | Available |
| Chapter 10: Human Occupations | Available | Available |
Current offer for Class 6 Geography
All Chapters Notes (10-PDF)-Rs. 30-Buy
All Chapters Solutions (10-PDF)-Rs. 28-Buy
All Chapters Notes + Solutions (20-PDF)-Rs. 45-Buy
All Chapters Notes History+Civics+Geography-(26-PDF)-Rs-75-Buy
All Chapters Solutions History+Civics+Geography-(26-PDF)-Rs-68-Buy
All Chapters Notes + Solutions History+Civics+Geography-(52-PDF)-Rs-104-Buy
PDF -विज्ञान आणि तंत्रज्ञान-भाग-१
| Chapter Name | Notes | Solutions |
| पाठ - 1- गुरुत्वाकर्षण. | Available | Available |
| पाठ - 2- मूलद्रव्यां चे आवर्ती वर्गीकरण. | Available | Available |
| पाठ-3-रासायनिक अभिक्रिया व समीकरणे | Available | Available |
| पाठ - 4- विद्युत धारेचे परिणाम. | Available | Available |
| पाठ-5-उष्णता | Available | Available |
| पाठ-6-प्रकाशाचे अपवर्तन | Available | Available |
| पाठ - 7- भिंंगे व त्यांचे उपयोग. | Available | Available |
| पाठ - 8- धातुविज्ञान. | Available | Available |
| पाठ - 9- कार्बनी संयुगे. | Available | Available |
| पाठ - 10- अवकाश मोहीमा. | Available | Available |
PDF -विज्ञान आणि तंत्रज्ञान-भाग-२
| Chapter Name | Notes | Solutions |
| पाठ - 1- आनुवंशिकता व उत्क्रांती | Available | Available |
| पाठ - 2- सजीवांतील जीवनप्रक्रिया भाग -1. | Available | Available |
| पाठ - 3- सजीवांतील जीवनप्रक्रिया भाग -2. | Available | Available |
| पाठ-4-पर्यावरणीय व्यवस्थापन | Available | Available |
| पाठ-5-हरित ऊर्जेच्या दिशेने | Available | Available |
| पाठ-6-प्राण्यांचे वर्गीकरण | Available | Available |
| पाठ - 7- ओळख सूक्ष्मजीवशास्त्राची. | Available | Available |
| पाठ-8-पेशीविज्ञान व जैवतंत्रज्ञान | Available | Available |
| पाठ-9-सामाजिक आरोग्य | Available | Available |
| पाठ - 10- आपत्ती व्यवस्थापन | Available | Available |
Current offer for Class 10 Science
PDF -इतिहास
| Chapter Name | Notes | Solutions |
| पाठ- १ : इतिहासलेखन : पाश्चात्त्य परंपरा. | Available | Available |
| पाठ- २ : इतिहासलेखन : भारतीय परंपरा | Available | Available |
| पाठ- ३ : उपयोजित इतिहास | Available | Available |
| पाठ- ४ : भारतीय कलांचा इतिहास | Available | Available |
| पाठ- ५ : प्रसारमाध्यमे आणि इतिहास | Available | Available |
| पाठ- ६ : मनोरंजनाची माध्यमे आणि इतिहास | Not Available | Not Available |
| पाठ- ७ : खेळ आणि इतिहास | Not Available | Not Available |
| पाठ- ८ : पर्यटन आणि इतिहास | Not Available | Not Available |
| पाठ- ९ : ऐतिहासिक ठेव्यांचे जतन | Not Available | Not Available |
| पाठाचे नाव | Notes | Solutions |
| पाठ - 1 : गतीचे नियम | Available | Available |
| पाठ - 2 : कार्य आणि ऊर्जा | Available | Available |
| पाठ - 3 : धाराविद्युत | Available | Available |
| पाठ - 4 : द्रव्याचे मोजमाप | Available | Available |
| पाठ - 5 : आम्ल, आम्लारी व क्षार | Available | Available |
| पाठ - 6 : वनस्पतींचे वर्गीकरण | Available | Available |
| पाठ - 7: परिसंस्थेतील ऊर्जा प्रवाह | Available | Available |
| पाठ - 8: उपयुक्त व उपद्रवी सूक्ष्मजीव | Available | Available |
| पाठ - 9: पर्यावरणीय व्यवस्थापन | Available | Available |
| पाठ - 10: माहिती संप्रेषण तंत्रज्ञान : प्रगतीची नवी दिशा | Available | Available |
| पाठ -11: प्रकाशाचे परावर्तन | Available | Not Available |
| पाठ - 12: ध्वनीचा अभ्यास | Available | Not Available |
| पाठ - 13: कार्बन : एक महत्त्वाचे मूलद्रव्य. | Available | Not Available |
| पाठ - 14: पदार्थ आपल्या वापरातील | Available | Not Available |
| पाठ - 15: सजीवांमधील जीवनप्रक्रिया | Available | Not Available |
| पाठ - 16: आनुवंशिकता व परिवर्तन | Available | Not Available |
| पाठ - 17: जैवतंत्रज्ञानाची ओळख | Available | Not Available |
| पाठ - 18: अवकाश निरीक्षण : दुर्बिणी | Available | Not Available |
महाराष्ट्र बोर्ड- कक्षा- 9 विज्ञान व तंत्रज्ञान-मराठी माध्यम सर्व 18 धड्यांची नोट्स (18 PDF) Rs. 72
PDF -सामान्य विज्ञान - Notes & Solutions
| Chapter Name | Notes | Solutions |
| पाठ - 1 : सजीव सृष्टी व सूक्ष्मजीवांचे वर्गीकरण | Available | Available |
| पाठ - 2 : आरोग्य व रोग | Available | Available |
| पाठ - 3 : बल व दाब | Available | Available |
| पाठ - 4 : धाराविद्युत आणि चुंबकत्व | Available | Available |
| पाठ - 5 : अणूचे अंतरंग | Available | Available |
| पाठ - 6 : द्रव्याचे संघटन | Available | Available |
| पाठ - 7: धातु-अधातु | Available | Available |
| पाठ - 8:प्रदूषण | Not Available | Not Available |
| पाठ - 9: आपत्ती व्यवस्थापन | Not Available | Not Available |
| पाठ - 10: पेेशी व पेशीअंगके | Not Available | Not Available |
| पाठ -11: मानवी शरीर व इंद्रिय संस्था | Not Available | Not Available |
| पाठ - 12: आम्ल, आम्लारी ओळख | Not Available | Not Available |
| पाठ - 13: रासायनिक बदल व रासायनिक बंध | Not Available | Not Available |
| पाठ - 14: उष्णतेचे मापन व परिणाम | Not Available | Not Available |
| पाठ - 15: ध्वनी | Not Available | Not Available |
| पाठ - 16: प्रकाशाचे परावर्तन | Not Available | Not Available |
| पाठ - 17: मानवनिर्मित पदार्थ | Not Available | Not Available |
| पाठ - 18: परिसंस्था | Not Available | Not Available |
| पाठ - 18: ताऱ्यांची जीवनयात्रा. | Not Available | Not Available |
PDF -Science- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Chemical Reactions and Equations | Available | Available |
| Chapter 2 :Acids, Bases and Salts | Available | Available |
| Chapter 3 :Metals and Non-Metals | Available | Available |
| Chapter 4 : Carbon and its Compounds | Available | Available |
| Chapter 5 : Life Processes | Available | Not Available |
| Chapter 6 : Control and Coordination | Available | Not Available |
| Chapter 7 : How do Organisms Reproduce? | Available | Not Available |
| Chapter 8 : Heredity | Available | Not Available |
| Chapter 9 : Light – Reflection and Refraction | Available | Not Available |
| Chapter 10: Human Eye and Colourful World | Available | Not Available |
| Chapter 11 : Electricity | Available | Not Available |
| Chapter 12 : Magnetic Effects of Electric Current | Available | Not Available |
| Chapter 13 : Our Environment | Available | Not Available |
Current offer for Class 10 Science
PDF -Science- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Matter in our surroundings | Available | Not Available |
| Chapter 2 : Is matter around us pure? | Available | Not Available |
| Chapter 3 : Atoms and molecules | Not Available | Not Available |
| Chapter 4 : Structure of the atom | Not Available | Not Available |
| Chapter 5 : The fundamental unit of life | Not Available | Not Available |
| Chapter 6 : Tissues | Not Available | Not Available |
| Chapter 7 : Motion | Not Available | Not Available |
| Chapter 8 : Force and laws of motion | Not Available | Not Available |
| Chapter 9 : Gravitation | Not Available | Not Available |
| Chapter 10: Work and energy | Not Available | Not Available |
| Chapter 11 : Sound | Not Available | Not Available |
| Chapter 12 :Improvement in food resources | Not Available | Not Available |
PDF -Science- Notes & Solutions
| Chapter Name | Notes | Solutions |
| Chapter 1: Crop production and management | Available | Not Available |
| Chapter 2 : Microorganisms : friend and foe | Available | Not Available |
| Chapter 3 : Coal and petroleum | Not Available | Not Available |
| Chapter 4 : Combustion and flame | Not Available | Not Available |
| Chapter 5 : Conservation of plants and animals | Not Available | Not Available |
| Chapter 6 : Reproduction in animals | Not Available | Not Available |
| Chapter 7 : Reaching the age of adolescence | Not Available | Not Available |
| Chapter 8 : Force and pressure |
Not Available | Not Available |
| Chapter 9 : Friction | Not Available | Not Available |
| Chapter 10: Sound | Not Available | Not Available |
| Chapter 11 : Chemical effects of electric current | Not Available | Not Available |
| Chapter 12 : Some natural phenomena | Not Available | Not Available |