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22 Nov 2025

CLASS 9 GEOGRAPHY Chapter-4 CLIMATE | NOTES

Weather Vs Climate Before studying India’s climate, it is important to understand two basic terms: weather and climate. Weather tells us what the atmosphere is like right now, while climate tells us what the atmosphere of a place is like most of the time over many years. For example: The Difference between Weather and Climate are as follow: Weather Climate Weather is the day-to-day condition of the atmosphere of a place. Climate is the average weather pattern of a place over 30–40 years. It can change quickly – within minutes or hours. It changes very slowly over a long period. Includes daily changes in temperature, rainfall, humidity, wind, etc. Shows long-term patterns like hot/dry climate, cold/wet climate, etc. Describes the atmosphere at a particular time. Describes the general atmospheric conditions of a place for many years. Example: Today it is sunny, tomorrow it may rain. Example: Rajasthan has a hot, dry climate; Kerala has a hot, wet climate. Helpful for short-term planning (clothes for the day, carrying an umbrella). Helpful for long-term planning (crop selection, construction, tourism). *Elements of Weather and Climate 1. Temperature 2. Atmospheric Pressure 3. Wind 4. Humidity 5. Precipitation (Rainfall, Snow, Hail) India’s Climate: Monsoon Type The term monsoon comes from the Arabic word “mausim”, meaning season. This tells us that monsoons are seasonal winds that bring major changes in temperature and rainfall. India is known for its monsoon type of climate, which makes our weather pattern very different from many other countries. * Why is India’s Climate Called Monsoon Type? India receives most of its rainfall from seasonal winds—the Southwest Monsoon and Northeast Monsoon.These winds reverse their direction depending on the season, leading to very clear changes in India’s climate. *Key Features of India’s Monsoon Type Climate FACTORS AFFECTING INDIA’s CLIMATE 1. Latitude Latitude means how far a place is from the Equator. 2. Altitude (Height Above Sea Level) Temperature decreases with height.For every 165 m rise in altitude, temperature drops by 1°C. So, higher places are always cooler. 3. Distance from the Sea The sea affects the climate of nearby areas. 4. Mountain Barriers Mountains play a major role in controlling temperature, wind, and rainfall. Himalayas 5. Pressure and Wind Systems The movement of air (winds) depends on pressure conditions. 6. Upper Air Circulation (Jet Streams) Jet streams are fast-moving winds in the upper atmosphere. 7. Ocean Currents Ocean currents are continuous flows of warm or cold water in the oceans. This affects the temperature and sometimes rainfall of coastal areas. THE SEASONS India’s climate is known for its different seasonal patterns. Unlike many other nations, which have simply summer and winter, India has a strongly seasonal climate due to the monsoon system and its tropical-subtropical position. The Indian Meteorological Department (IMD) divides the year into four major seasons: 1. The Cold Weather Season (Winter) – December to February 2. The Hot Weather Season (Summer) – March to May 3. The Advancing Monsoon Season – June to September 4. The Retreating Monsoon Season – October to November DISTRIBUTION OF RAINFALL IN INDIA Rainfall in India varies throughout the country. Some areas have heavy rainfall, while others receive very little. This uneven or irregular pattern is known as distribution of rainfall. 1. Areas of Heavy Rainfall (More than 200 cm annually) 2. Areas of Moderate Rainfall (100–200 cm annually) 3. Areas of Low Rainfall (Less than 100 cm annually) 4. Regions of Very Low Rainfall (Below 25 cm annually) MONSOON AS A UNIFYING BOND India has a huge variety of climates, landforms, languages, and cultures, the monsoon binds the whole country together.It is one of the most important features of India’s climate and affects almost every part of the nation. There are some reasons that shows that Monsoon is a Unifying Force: 1. Seasonal Rhythm Shared by Entire Country The monsoon follows a distinct seasonal pattern—the arrival, progress, and withdrawal of rains. This pattern is felt across India, giving people everywhere a common climatic experience. 2. Whole Country Awaits Its Arrival Every year, after the intense summer heat, the entire nation waits for the monsoon.The excitement of the first rain is felt from Kerala to Kashmir and from Gujarat to Assam. 3. Monsoon Affects Agriculture All Over India India’s agriculture is heavily monsoon-dependent. The monsoon influences the whole economy, connecting all regions. 4. Water Availability Everywhere Depends on Monsoon Rivers, lakes, ponds, and groundwater are mainly recharged by monsoon rainfall. So, all states rely on monsoon rains. 5. Monsoon Creates a Sense of Cultural Unity Many festivals, songs, and traditions in India are linked to the monsoon. This gives India a shared cultural identity during the rainy season. 6. Monsoon Winds Cover the Entire Subcontinent The Southwest Monsoon and the Retreating Monsoon touch almost every part of India

21 Nov 2025

CLASS 9 CIVICS Chapter-4 Working of Institutions | NOTES

INTRO – WORKING OF INSTITUTIONS Institutions are systems or structures that help the government work properly.They are like the engine parts of a big machine called government. Institutions keep our democracy organized, smooth, and trustworthy. This chapter explains – how one major government decision moves through different institutions — from making it, approving it, to checking it. It helps us see democracy in action, not just on paper. OFFICE MEMORANDUM An Office Memorandum (O.M.) is a formal government document.It contains orders, instructions, or decisions issued by the Government of India. It is written in an official format and carries the authority of the Government of India. The famous office memorandum was issued on 13 August 1990. *MANDAL COMMISSION -The Mandal Commission was a government-appointed committee created to find out: -It is officially known as ‘Second Backward Classes Commission’ –Year of formation: 1979 –Formed by: Prime Minister Morarji Desai –Chairperson: B.P. Mandal -After studying thousands of villages, towns, and communities, the Commission concluded: -The Mandal Commission recommended the 27% reservation for Socially and Economically Backward Classes (SEBC) in central government jobs and public sector services. -For almost 10 years, the recommendations were not applied. -Finally in 1990, Prime Minister V.P. Singh decided to implement 27% reservation for OBCs. This decision was officially announced in the famous Office Memorandum (13 August 1990) -The reservation decision was challenged in the Supreme Court. This case was known as the ‘Indira Sawhney and others Vs Union of India case’. –In the Indra Sawhney Case (1992), the Supreme Court: This balanced both social justice and merit. DECISION MAKERS In a democracy like India, no single person takes decisions alone.Every major government decision goes through a chain of important people and institutions. This “team” of decision makers includes: NEED FOR POLITICAL INSTITUTIONS Political institutions are the building blocks of our government. They help the country run in an organized, fair, and efficient way. They are like the engine that drives the whole system of democracy. There are some reasons on why are political institutions Necessary: 1. To Take Decisions for the Country Important issues like education, health, defence, budget, and welfare schemes need proper decision-making.Political institutions help decide what should be done for the nation. 2. To Implement Those Decisions Decisions become meaningful only when they are put into action.Institutions like ministries and civil servants implement government policies on the ground. 3. To Resolve Disputes and Maintain Peace Courts and other institutions settle conflicts between – People, States, and Government bodies. This keeps society calm, fair, and orderly. 4. To Make Democracy Function Smoothly Democracy needs rules, procedures, and transparency.Institutions prevent misuse of power and ensure that leaders remain accountable. 5. To Distribute Power Fairly No single person runs the whole country. Power is divided among – Parliament (law-making), Executive (implementation), and Judiciary (interpretation). This protects freedom and prevents dictatorship. PARLIAMENT Parliament is the heart of Indian democracy. It is where laws are made, the government is challenged, and citizens’ opinions are heard. It acts as the bridge between the government and the people.If India were a machine, Parliament would be the control room. *Functions of Parliament Following are the main Functions of Parliament: 1. Law Making Parliament makes laws on national issues like education, environment, defence, technology, etc. 2. Controlling the Government Parliament checks whether the government is working properly or not through – Question Hour, Debates, Motions, and No-Confidence Motion. 3. Representing the People Members speak on behalf of their states and constituencies.Parliament reflects the voice of India. 4. Approving the Budget Government cannot spend money without Parliament’s approval.This keeps expenses transparent and accountable. 5. Discussing National Issues Inflation, unemployment, safety, defence, floods — Parliament discusses everything that matters to citizens. *The Two Houses of Parliament Basis of Difference Lok Sabha (House of the People) Rajya Sabha (Council of States) Meaning Lower house of Parliament; represents the people of India Upper house of Parliament; represents the states and union territories Members Maximum 552 members Maximum 250 members Election Method Members are directly elected by the people Members are indirectly elected by State Legislative Assemblies; some nominated by President Term 5 years (unless dissolved earlier) Permanent House; not dissolved. 1/3rd members retire every 2 years Presiding Officer Speaker of Lok Sabha Chairman (Vice-President of India) Representation Represents the population of India Represents the states of India Powers in Money Matters Has more power; Money Bill can only be introduced in Lok Sabha Has limited power; cannot reject a Money Bill, only suggest changes Control over Government Can remove the government through a No-Confidence Motion Cannot pass a No-Confidence Motion Age Requirement Minimum age: 25 years Minimum age: 30 years Role in Law Making More powerful; final say in most matters Cannot overrule Lok Sabha in joint sessions Dissolution Can be dissolved Cannot be dissolved (permanent house) *Why Lok Sabha Is More Powerful The following are the points that show how Lok Sabha is more powerful than Rajya Sabha: 1. Lok Sabha Represents the People Directly Members of Lok Sabha are directly elected by citizens. This makes Lok Sabha the true voice of the people. Rajya Sabha represents states, not people directly. So in matters related to public interest, Lok Sabha has a stronger role. 2. Lok Sabha Controls the Government The Council of Ministers (including the Prime Minister) is responsible only to the Lok Sabha. 3. More Power in Money Matters Money Bills deal with government spending, taxes, budget, etc. According to the Constitution: 4. Joint Sessions Favor Lok Sabha If both houses disagree on a law, a joint session is called.In a joint session, the number of Lok Sabha members is much larger than Rajya Sabha. It will Results that Lok Sabha’s opinion almost always wins. 5. Lok Sabha Can Be Dissolved, Rajya Sabha Cannot Lok Sabha’s term is 5 years. It keeps Lok Sabha directly answerable to the people, giving it more democratic power. Rajya Sabha is permanent and cannot be dissolved. POLITICAL EXECUTIVE Every country needs people who take decisions and others…

8 Nov 2025

CLASS 9 SCIENCE Chapter- Gravitation | NOTES

INTRO- GRAVITATION –Gravitation is a natural phenomenon by which every object in the universe attracts every other object with a force that acts along the line joining their centres. -This force of mutual attraction between two masses is called the gravitational force. -Everybody that has mass exerts an attractive force on every other body in the universe. -The magnitude of this force depends on: #The greater the masses, the stronger the attraction; the larger the distance, the weaker the force. -The idea of gravitation was explained by Sir Isaac Newton in 1687. (He discovered that the same force that causes an apple to fall to the ground also holds the Moon in orbit around the Earth and the planets in orbit around the Sun. This inspired him to create the Universal Law of Gravitation, which mathematically defines the force.) *Nature of the Gravitational Force Property Description Type of Force Non-contact (acts without physical contact) Direction Always acts along the line joining the centres of two bodies Nature Always attractive, never repulsive Range Infinite (though becomes very weak with distance) Strength Weak compared to other fundamental forces (e.g., electromagnetic) *Difference Between Gravitation and Gravity Basis Gravitation Gravity Definition The universal force of attraction between any two bodies in the universe. The gravitational force specifically exerted by the Earth on objects near its surface. Scope Universal – acts between any two masses. Local – acts only near the Earth. Example Attraction between the Sun and Earth. Attraction between Earth and an apple. Newton’s Universal Law of Gravitation Newton’s Universal law of gravitation states that every object in the universe attracts every other object with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres. Let two objects of masses m1 and m2 be separated by a distance . Then, according to Newton’s law, To remove proportionality, a constant G (the universal gravitational constant) is introduced: Where, G = 6.67×10-11 Nm2/kg2 *Relation between Newton’s third law of motion and Newton’s law of gravitation -Newton’s third law of motion: According to Newton’s third law of motion, “Every object exerts equal and opposite force on other object but in opposite direction.” –Newton’s law of gravitation: According to Newton’s law of gravitation, “Every mass in the universe attracts every other mass.” In case of freely falling stone and earth, stone is attracted towards earth means earth attracts the stone. But according to Newton’s third law of motion, the stone should also attract the earth.It is true that stone also attracts the earth with the same force F = m × a but due to very less mass of the stone, the acceleration (a) in its velocity is 9.8 m/s2 and acceleration (a) of earth towards stone is 1.65×10-24 m/s2 which is negligible and we cannot feel it. *Importance of Universal Law of Gravitation FREE FALL OF AN OBJECT AND ACCELERATION DUE TO GRAVITY Free fall is the motion of a body when it falls towards the Earth under the influence of gravitational force only, with no other force (like air resistance) acting on it. When an object is thrown upward, it reaches certain height, then it starts falling down towards earth. It is because the earth’s gravitational force exerts on it. This fall under the influence of earth is called ‘free fall of an object’. During this free fall direction do not change but velocity continuously changes which is called acceleration due to gravity. It is denoted by ‘g’. Its unit is same as acceleration m/s2. *Derivation for Acceleration Due to Gravity From Newton’s law of gravitation: According to Newton’s second law of motion: For a freely falling body: Equating both forces: Cancelling m from both sides: Formula: *The Value of acceleration due to gravity (g) where, *Difference Between Gravitational constant (G) and Acceleration due to gravity (g) Basis of Difference Universal Gravitational Constant (G) Acceleration Due to Gravity (g) 1. Definition It is a constant that measures the strength of the gravitational force between any two bodies in the universe. It is the acceleration produced in a body when it falls freely under the influence of Earth’s gravity. 2. Formula 3. Nature It is a universal constant, same everywhere in the universe. It varies from place to place (depends on height, depth, and latitude). 4. Value G= 6.67×10-11 5. Depends On It does not depend on mass, distance, or location. It depends on the mass and radius of the Earth. 6. Type of Quantity Scalar quantity (has only magnitude). Vector quantity (has magnitude and direction — toward Earth’s center). 7. Symbol G g 8. Unit N·m²/kg² m/s² 9. Discovery Discovered by Sir Isaac Newton. Measured experimentally on Earth. 10. Variation Remains constant throughout the universe. Decreases with altitude and depth; increases at poles. *Equations of Motion for a Freely Falling Body The same kinematic equations apply, replacing a by g: #For Object Falling Downward #For Object Thrown Upward *Factors Affecting the Value of g MASS AND WEIGHT *MASS *WEIGHT *Difference Between Mass and Weight Basis Mass Weight Definition Amount of matter contained in a body. Force with which Earth attracts a body towards its center. Formula m=w/g W = mg Nature Scalar quantity. Vector quantity (acts downward). Unit (SI) Kilogram (kg). Newton (N). Value Constant everywhere. Varies from place to place (depends on (g)). Measuring Instrument Beam balance. Spring balance. Zero Condition Never zero (matter cannot vanish). Becomes zero where (g = 0) (e.g., space). On Moon Same as on Earth. 1/6 of weight on Earth. THRUST AND PRESSURE When a force acts perpendicularly on a surface, it creates an effect known as thrust.The effect of thrust per unit area on a surface is called pressure. *Thrust *Pressure *Examples of Pressure BUYONCY The upward force exerted by a liquid (or fluid) on an object when it is partially or completely immersed in it is called buoyant force, and the property of a fluid to exert this upward force is called buoyancy. It…

8 Nov 2025

CLASS 10 GEOGRAPHY Ch- Manufacturing Industries | NOTES

INTRO- MANUFACTURING The term “Manufacturing” comes from two Latin words- ‘Manu’ means hand and ‘facture’ means to make. It means producing goods in large quantities from raw materials and adding value to them through processing, machinery, and labour. It is a secondary activity because it converts primary materials (from agriculture, mining, etc.) into finished products. *Relation Between Agriculture and Industry Agriculture and industry are interdependent: #Both sectors support each other’s growth and sustainability. IMPORTANCE OF MANUFACTURING Manufacturing plays a vital role in the economic and social development of a nation. CONTRIBUTION OF MANUFACTURING TO NATIONAL ECONOMY INDUSTRIAL LOCATION Industrial location refers to the specific place or area where an industry is set up. Industries tend to locate where all necessary inputs are easily and cheaply available. According to Alfred Weber’s Industrial Location Theory, “An industry is located at a place where the cost of production and transportation is minimum.” *Factors Affecting the Location of Industries Industries do not grow everywhere — they develop where conditions are favourable.The major factors are given below. 1. Availability of Raw Materials 2. Labour (Manpower) 3. Power (Energy Source) 4. Capital (Investment) 5. Market 6. Transport and Communication 7. Government Policies 8. Industrial Climate (Social and Political Stability) *Industrial Clusters or Agglomeration -When several industries are set up close to each other for mutual benefit, it is called industrial agglomeration. -These areas become industrial hubs or regions. -Example: CLASSIFICATION OF INDUSTRIES Industries can be classified or grouped on different bases such as raw materials, capital investment, ownership, and size.This helps in understanding their nature, functioning, and contribution to the economy. AGRO-BASED INDUSTRIES Agro-based industries are industries that use agricultural products as raw materials. They form a strong link between agriculture and industry, and are the largest group of industries in India. These industries process agricultural raw materials into finished or semi-finished goods that can be used by consumers or other industries. 1. Textile Industry 2. Cotton Textile Industry 3. Jute Industry 4. Sugar Industry MINERAL BASED INDUSTRIES 1. Iron and Steel Industry 2. Aluminium Smelting 3. Chemical Industries 4. Fertiliser Industry 5. Cement Industry 6. Automobile Industry 7. Information Technology and Electronics Industry INDUSTRIAL POLLUTION AND ENVIRONMENTAL DEGRADATION Industrial pollution refers to the contamination of the environment due to harmful by-products released from industries into air, water, and soil. Industries are responsible for four types of pollution: Air, Water, Land, Noise *Measures to Control Industrial Pollution To reduce pollution and promote sustainable development, the following steps are essential:

7 Nov 2025

CLASS 10 SCIENCE Chapter- How do Organism Reproduce | NOTES

INTRODUCTION– Reproduction Reproduction is the biological process by which new individuals (offspring) are produced from their parents. It ensures the continuity of life on Earth. Reproduction is a life process, but not essential for survival of an individual — it is essential for the survival of species. DNA (Deoxyribonucleic Acid), present in the nucleus of every cell, is the hereditary molecule that carries genetic information, gets copied during reproduction, and ensures continuity and variation in organisms. TYPES OF REPRODUCTION 1. ASEXUAL REPRODUCTION Asexual reproduction is the type of reproduction in which only one parent is involved and no fusion of gametes takes place.The offspring produced are genetically identical to the parent, i.e., they are exact copies or clones of the parent. *Characteristics of Asexual Reproduction *Advantages of Asexual Reproduction: *Disadvantages of Asexual Reproduction: 2. SEXUAL REPRODUCTION Sexual reproduction is the type of reproduction in which two parents (male and female) are involved and fusion of male and female gametes occurs to form a zygote, which develops into a new organism.The offspring produced show variations because they inherit genetic material from both parents. *Characteristics of Sexual Reproduction: *Advantages of Sexual Reproduction: *Disadvantages of Sexual Reproduction: METHODS OF ASEXUAL REPRODUCTION 1. FISSION In this process, a unicellular organism divides into two or more new individuals. -There are two types of Fission: Binary Fission and Multiple Fission. i. Binary Fission: The parent cell divides into two equal halves. For example: Amoeba ii. Multiple Fission: The parent cell divides into many daughter cells. It usually occurs in unfavourable conditions. For example: Plasmodium (malaria parasite) 2. BUDDING In this method, a small outgrowth (bud) develops on the parent’s body, which grows and later detaches to form a new individual. For Example: Yeast and Hydra 3. FRAGMENTATION In this process, the body of the parent organism breaks into two or more fragments, and each fragment grows into a new organism. It Occurs only in simple multicellular organisms with simple body organization, not seen in complex animals or plants. For Example: Spirogyra (algae) 4. REGENERATION The ability of an organism to regrow lost body parts, and sometimes a whole new organism can be formed from a body fragment. Regeneration occurs through specialized cells that divide and differentiate into new tissues. For Example: Planaria, and Starfish 5. SPORE FORMATION It is a method of asexual reproduction in which the parent produces tiny spherical spores inside a sporangium (spore case).When the sporangium bursts, the spores spread and grow into new organisms under suitable conditions. For Example: Rhizopus (Bread Mould) 6. VEGETATIVE PROPAGATION (in plants) It is the asexual reproduction in plants where new plants are produced from vegetative parts like root, stem, leaf, or bud, instead of seeds. SEXUAL REPRODUCTION Sexual reproduction is the type of reproduction in which two parents are involved, and fusion of male and female gametes occurs to form a zygote, which later develops into a new individual. –Sexual reproduction is the most common mode of reproduction in higher plants and animals. -It involves two parents — one male and one female. -This process leads to the formation of genetically different offspring due to fusion of gametes and mixing of genetic material. -It helps in variation, evolution, and survival of species. SEXUAL REPRODUCTION IN PLANTS Sexual reproduction in plants involves the fusion of male and female gametes, resulting in the formation of a zygote, which grows into a seed and later forms a new plant. This process ensures variation and continuity of species. -Reproductive Organ of the Plant: *Structure of Male and Female Reproductive Parts 1. Male Part – Stamen It consists of: 2. Female Part – Carpel / Pistil It consists of: *Steps involved in sexual reproduction in plants The process occurs in four main stages: STEP 1: POLLINATION Pollination is the process of transferring pollen grains from the anther (male part) to the stigma (female part) of a flower. – Types of Pollination: – Agents of Pollination: Pollination is carried out by wind, water, insects, or birds.(Bees and butterflies are the most common pollinators) STEP 2: FERTILIZATION STEP 3: FRUIT AND SEED FORMATION After fertilization, many changes take place inside the flower: STEP 4: GERMINATION When the seed falls on the soil and gets favourable conditions like air, water, and warmth — it germinates.The embryo inside the seed starts growing into a new plant, completing the life cycle. SEXUAL REPRODUCTION IN HUMAN BEING Reproduction in human beings is a sexual mode of reproduction, involving two parents — a male and a female. It ensures the continuity of human life and the transfer of genetic information from parents to offspring. This process involves the formation of gametes, their fusion (fertilization), and the development of a new individual from the zygote. *PUBERTY -Puberty is the stage when the body becomes capable of reproduction. -It is controlled by hormones and marks physical, physiological, and emotional changes. -Generally occurs between: -Changes at Puberty in Males: – Changes at Puberty in Females: *MALE REPRODUCTIVE SYSTEM The male reproductive system is responsible for the production, storage, and delivery of sperms (male gametes). It also produces the male sex hormone – Testosterone, which controls the development of male features and reproduction. -Testes (singular: Testis): -Vas Deferens (Sperm Duct): -Urethra: -Penis: *FEMALE REPRODUCTIVE SYSTEM The female reproductive system is designed to produce female gametes (ova or eggs), receive sperms from the male, and provide a safe environment for fertilization and development of the baby.It also produces female hormones that control reproductive cycles and secondary sexual characteristics. -Ovaries -Oviducts (Fallopian Tubes) -Uterus (Womb) –Cervix -Vagina *FERTILIZATION OF EGG Fertilisation is the process in which the male gamete (sperm) fuses with the female gamete (egg or ovum) to form a zygote, which is the first cell of a new individual. In humans, fertilisation occurs in the fallopian tube (oviduct) of the female reproductive system. There are two Types of Fertilization: #Humans show internal fertilisation, i.e., fertilisation takes place inside the female body. -Process of Fertilisation: -When the Egg is Fertilised -When the…

5 Nov 2025

CLASS 10 ECONOMICS Chapter- GLOBALIZATION AND INDIAN ECONOMY | NOTES

INTRO- GLOBALIZATION Globalization means the process of integration or interconnection between countries through the movement of goods, services, people, capital (money), and information. In simple terms, it is the process that turns the world into one large market — where countries are connected economically and culturally. “Globalization is the process by which the world’s economies, societies, and cultures are becoming interconnected through increased cross-border trade, investment, and communication.” Globalization has grown to include far more than just trade. This includes: Multinational Corporations (MNCs) are the main driving force behind globalization. MNCs play a central role in connecting national economies and spreading globalization. MULTINATIONAL CORPORATIONS (MNCs) An MNC is a company that owns or controls production and business operations in more than one country. It is also known as Transnational Corporation. *Aims / Objectives of MNCs *Role of MNCs in Globalization *Benefits from MNCs to Local Companies Benefits Explanation / Example 1. Capital Investment MNCs bring foreign money that helps local companies expand business and production. 2. Transfer of Technology Local firms get access to advanced machines and modern production methods. 3. Better Skills and Standards Workers and managers learn new techniques and improve quality of work. 4. Increased Demand for Local Goods MNCs buy raw materials and parts from local suppliers, creating new business. 5. New Business Opportunities Local small businesses grow as suppliers, transporters, or service providers. 6. Access to Global Markets Collaboration with MNCs helps local firms export goods and enter global trade. 7. Improved Competitiveness Local companies upgrade quality and efficiency to compete globally. IMPACT OF GLOBALIZATION Positive Impacts Negative Impacts 1. More foreign investment 1. Unequal benefits 2. Expanded markets 2. Loss to small industries 3. Advanced technology 3. Job insecurity 4. More employment 4. Environmental damage 5. Growth of Indian companies 5. Cultural erosion 6. Better quality & lower prices 6. Rural sector left behind 7. Global exchange of ideas 7. Economic dependence FACTORS THAT ENABLED GLOBALIZATION 1. Rapid Improvement in Technology 2. Liberalization of Foreign Trade and Investment Policy 3. Role of Multinational Companies (MNCs) 4. Growth of Communication Networks 5. Development of Global Financial Systems 6. Trade Agreements and International Organizations 7. Political and Economic Reforms in Developing Countries NEW ECONOMIC POLICY 1991 It was Introduced in 1991 by the government of India under Prime Minister P. V. Narasimha Rao and Finance Minister Dr. Manmohan Singh. The New Economic Policy of 1991 marked a major turning point in India’s economic history. It shifted India from a closed and controlled economy to an open and market-oriented economy. Reason: India faced a serious economic crisis – low foreign exchange, high inflation, and high debt. The main feature of NEP 1991 was LPG policy – Liberalization, Privatization, Globalization.

21 Oct 2025

CLASS 8 SCIENCE Chapter- SOME NATURAL PHENOMENA

Introduction – Natural Phenomena Natural Phenomena are the events or occurrences that happen in nature without human control. Some of them are beautiful and helpful (like rainbows), while others can be dangerous or harmful (like earthquakes, lightning, or cyclones). Electric Charges Every object is made up of tiny particles called atoms. -Atoms contain electrons (–ve), protons (+ve), and neutrons (neutral). -When an object loses or gains electrons, it becomes electrically charged. *Type of Charges *Methods of Charging There are two main methods by which objects can be charged: 1. Charging by Friction (Rubbing) Friction (Rubbing) causes electrons to transfer from one substance to another. One becomes positively charged, while the other becomes negatively charged. –Example: Use a plastic scale or balloon on dry hair: -Real-life examples: 2. Charging by Induction (Without Touching) Charging a neutral object without touching it by simply bringing a charged object close to it. The charged body’s electric field causes the charges inside the neutral object to rearrange themselves. -Example: Bring a negatively charged rod near to a neutral metal ball. 3. Charging by Conduction (Touching) When a charged object touches a neutral object, charges are directly transferred by contact. In conduction, the neutral object always gets the same charge as the charged object. Example: If you touch a negatively charged balloon to a metal can, the can rolls due to gained electrons. *Electroscope An electroscope is a simple device used to detect the presence of electric charge on an object. It helps us find out whether a body is charged or uncharged, and if charged, it can show the nature (type) of the charge. -PARTS: -Working of an Electroscope: -Uses of an Electroscope: 1. Detecting Electric Charge: 2. Testing Conductors and Insulators: Lightning Lightning is a bright flash of light in the sky that occurs during a thunderstorm.It is caused by the discharge of electric charges between clouds or between a cloud and the Earth. *How is Lightning Produced? *Benjamin Franklin’s Experiment *Safety Measures During Lightning –Lightning Conductors A lightning conductor is a metal rod fixed to tall buildings or structures to protect them from lightning strikes. Benjamin Franklin (in 1752) after his famous kite experiment EARTHQUAKE An earthquake is a sudden shaking of the Earth’s surface caused by the release of energy stored in the earth’s crust.This energy is released as seismic waves that travel through the Earth.Earthquakes can range from minor tremors (not felt) to huge destructive quakes. Earthquake is measured by- Richter Scale. It Measures the magnitude (strength) of an earthquake. –Focus (Hypocenter): The point inside Earth where the earthquake starts –Epicenter: The point on Earth’s surface directly above the focus. –Seismic Waves: Waves of energy that travel through the Earth, causing ground shaking. *Causes of Earthquakes 1.Natural Causes -Tectonic Plate Movement -Volcanic Activity -Landslides & Rockfalls 2.Human-Induced Causes –Mining Activities –Reservoir-Induced Earthquakes -Nuclear Explosions * Types of Seismic Waves 1. Primary (P) Waves 2. Secondary (S) Waves 3. Surface Waves * Safety Measures During Earthquake – Indoor Measures: – Outdoor Measures:

8 Oct 2025

CLASS 10 CIVICS Chapter-4 POLITICAL PARTIES | NOTES

MEANING OF POLITICAL PARTIES A political party is an organised group of people with shared political views and ideologies who join together to contest elections and maintain power in government. They agree on certain policies and programmes aimed at increasing societal well-being. Why Do We Need Political Parties? 1. Democracy Cannot Function Without Them If there are no parties, no one will be responsible for how the country is run. And government will become unstable and directionless. 2. They Represent Different Opinions Parties make sure that they will represent society’s diverse views, interest, and opinion. 3. They Make Policies and Run Government Ruling party makes laws and policies for the country. Whereas, Opposition checks and criticises the ruling party. This will ensure the accountability. 4. They Provide Choices to Voters Political parties provide citizens with different options of leaders, programmes and policies. 5. They Form a Link Between Government and People We need Political Parties as they act like a bridge between government and citizens by raising demands and problems of the people. COMPONENTS OF POLITICAL PARTIES A political party is not just its leaders but a combination of leaders + active members + followers. All three components are necessary for the functioning and success of a party. Functions of Political Parties 1. Contest ElectionsParties nominate and campaign for candidates to win elections and implement programs. 2. Create policies and programmesEach party develops policies and programs to address public issues, providing voters with clear options for the country’s future direction. 3. Making LawsParties in power shape policies that reflects their ideology and promises. 4. Establish and Run GovernmentThe majority party (or coalition) establishes the government, manages ministries, and implements policies, while the opposition checks its actions. 5. Shape Public OpinionParties employ rallies, campaigns, debates, and media to influence and guide people on important national and social issues. 6. Give people access to the governmentParties serve as bridges between the government and citizens, fighting for their needs and facilitating access to government programs and services. Types of Party System A party system refers to how political parties are organised and run in a country, including how many parties compete, share power, and influence policies. Political scientists divide party systems into three categories based on the number of parties and the nature of competition: 1. One-Party System -Definition: A system where only one political party exists or dominates all levels of government. -Features: -Examples: China (Communist Party), North Korea (Workers’ Party). -Pros: Ensures stability -Cons: limits freedom of choice and disagreement. 2. Two-Party System -Definition: A system where two major parties dominate national politics. -Features: -Examples: USA (Democrats & Republicans), UK (Conservatives & Labour). -Pros: Gives political stability and clear policies, limits fragmentation of votes. -Cons: Minorities and smaller groups may be underrepresented. 3. Multi-Party System -Definition: A system where multiple political parties compete for power at national and state levels. -Features: -Examples: India, Italy, Israel. -Pros: -Cons: Can lead to unstable governments if coalitions are weak or short-lived. Types of Political Parties Political parties can be classified based on their scope of influence and operation in a country. In India and most democracies, they are mainly of two kinds: *National Party -A national party is a political party that runs in several states and has a large national following. If these parties secure a majority of seats in the Lok Sabha, they will be able to form the central government. These political parties are referred to as “recognised political parties” because the Election Commission of India (ECI) has recognised them. –Criteria for a National Party A political party is recognised as a National Party in India if it has a widespread presence across the country. According to the Election Commission of India, a party can be recognised as a national party if it fulfil any one of the following: OR OR –National Parties in India (2024–25) 1. Bharatiya Janata Party (BJP) 2. Indian National Congress (INC) 3. Bahujan Samaj Party (BSP) 4. Communist Party of India (Marxist) – CPI(M) 5. Aam Aadmi Party (AAP) 6. National People’s Party (NPP) *State/Regional Party A state party, sometimes known as a regional party, is a type of political party that is only accepted in one or a small number of Indian states. These parties primarily serve the interests of their respective states or regions, but through alliances, they can also have a significant impact on national politics. Examples of State Parties in India POLITICAL ALLIANCES When two or more political parties join together to run for election and form a government, this is known as a political alliance. If they win, they agree to share power and work together on a single program. -Examples of Alliances in India -Need for Alliances ROLE OF OPPOSITION The party or parties that do not control the government but are well-represented in the legislature are known as the opposition parties. The Leader of the Opposition is the major party that is not in power; it is officially recognised if it holds at least 10% of the seats in the Lok Sabha. Functions / Importance of Opposition SIGNIFICANCE OF POLITICAL PARTIES IN DEMOCRACY Political parties are called the “backbone of democracy” because without them democracy cannot function. So, their Significance/Importance in Democracy are as follow: POLITICAL PARTY REFORM Political parties are very important in a democracy because they run governments, represent people, and give choices in elections. But sometimes, parties face problems like corruption, family rule, and misuse of money. That is why political party reforms are needed. *Why Do We Need Political Party Reforms? Political parties need reforms because: *How Can Political Parties Be Reformed? 1. Legal Reforms (By Law) 2. Institutional Reforms (By Election Commission & Constitution) 3. Voluntary / Social Reforms (By People & Parties) *Some suggestions to reform political parties CHALLENGES TO POLITICAL PARIES 1. Dynastic Succession: 2. Money and Muscle Power: 3. Lack of Internal Democracy: 4. Influence of Rich and Powerful Groups: 5. Corruption and Declining Credibility: 6. Fragmentation of Votes: 7. Frequent Splits in Parties: 8.…

8 Oct 2025

CLASS 9 ECONOMICS Chapter-3 POVERTY AS A CHALLENGE

Introduction – Poverty as a Challenge Class 9 One of India’s most significant social and economic problems is poverty. It describes a state where people are lacking the basic necessities of life, such as food, clothing, housing, medical treatment, and education. Every day, a poor person fights for survival and faces insecurity, hunger, and a lack of dignity. Poverty includes not only a lack of money, but also the absence of opportunities, social position, and a fair level of living. Meaning of Poverty Poverty is a circumstance in which a person’s income is insufficient to meet their basic needs.It has a wide-ranging impact on life: Thus, poverty is multidimensional, not just about income, but also about quality of life. Two Typical Cases of Poverty 1. RURAL CASE- Ram Saran’s Family (Village near Meerut, Uttar Pradesh) -Living Conditions: -Conclusion (Rural Poverty Features) 2. URBAN CASE – Saviya Begum’s Family (Urban Area) -Living Conditions: -Conclusion (Urban Poverty Feature) #NOTE: POVERTY AS SEEN BY SOCIAL SCIENTISTS According to social scientists, poverty is about more than just income or money. It is a multidimensional issue that include a lack of basic necessities, education, healthcare, and social justice. Poverty means a situation where people are deprived of a decent standard of living and opportunities for development. Social scientists identify different types of deprivations faced by poor people. These are as follow: (i) Social Deprivation: (ii) Economic Deprivation: (iii) Political Deprivation: (iv) Health and Educational Deprivation: (v) Vulnerability and Insecurity: POVERTY LINE The poverty line is the minimum amount of income or consumption necessary for a person to achieve their basic necessities. People below this level are considered poor. The Planning Commission and the National Sample Survey Organisation (NSSO) conducted the survey. The poverty line is estimated periodically (normally every five years). In India, the poverty line is estimated based on: POVERTY ESTIMATES Poverty estimates show how many people are poor in the country. The Planning Commission of India calculates them based on National Sample Survey Organisation (NSSO) surveys. In India, the consumption approach is mostly used to determine if people can afford basic food and necessities. Historical estimations suggest a falling trend in poverty: Poverty has gradually declined, with rural areas having more poor people than urban areas. –Limitations of Poverty Estimates INTER STATE POVERTY Inter-state disparities refer to differences in poverty levels and living standards between India’s states. These disparities exist because not all states have equal resources, industries, and opportunities. -Lower Poverty States: States like Maharashtra, Gujarat, Punjab, Haryana, Kerala, and Tamil Nadu have lower poverty rates due to better industrial growth, improved agriculture, higher literacy rates, and better job opportunities. -Higher Poverty States: States such as Bihar, Uttar Pradesh, Odisha, Madhya Pradesh, and Jharkhand continue to have higher poverty rates due to slow industrial growth, poor infrastructure, low literacy, and a lack of job opportunity. -The main causes of inter-state disparities include: #NOTE: Rural poverty is higher than urban poverty in all states. Disparities affect standard of living, health, and education of people. GLOBAL POVERTY SCENARIO The global poverty scenario describes the extent and distribution of poverty around the world. According to the World Bank, a person earning less than $1.90 per day (in terms of purchasing power) is classified as poor under international standards. Global poverty has decreased in recent decades, particularly since the 1980s, although it remains a serious problem in many developing and undeveloped countries. The largest concentration of poor people lives in South Asia (India, Bangladesh, Nepal, Pakistan, Sri Lanka) and Sub-Saharan Africa. The global poverty scenario shows that, while poverty has decreased worldwide, it is still concentrated in South Asia and Africa. Countries such as China and India have made great progress. POVERTY AND SUSTAINABLE DEVELOPMENT GOALS (SDG) -In 2015, the United Nations approved the Sustainable Development Goals (SDGs), which aim to promote global peace, prosperity, and equality by 2030. Goal 1 – “No Poverty” aims to end all types of poverty and ensure that no one lives on less than $1.90 per day (international poverty line). -Poverty reduction is an important component of sustainable development since it improves education, health, equality, and economic progress. -India is committed to achieving this goal through various poverty alleviation programmes, such as: CAUSES OF POVERTY ANTI-POVERTY MEASURES To reduce poverty in India, the government has adopted two main approaches: *Promotion of Economic Growth *Targeted Anti-Poverty Programmes The government has launched several schemes to directly help the poor: 1. Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA), 2005 2. National Rural Employment Guarantee Programme (NREGP) and National Food for Work Programme (NFFWP) 3. Pradhan Mantri Awas Yojana (PMAY) 4. Pradhan Mantri Gram Sadak Yojana (PMGSY) 5. National Rural Livelihood Mission (NRLM) 6. Prime Minister Jan-Dhan Yojana (PMJDY) THE CHALLENGES AHEAD Even after years of economic growth and government schemes, poverty remains a challenge in India. These Challenges are as follow: 1. Rural Poverty 2. Unemployment and underemployment 3. Population Pressure 4. Social Inequality 5. Lack of Education and Skills 6. Regional Disparities 7. Implementation Issues

4 Oct 2025

CLASS 9 SCIENCE (Chemistry) Chapter-4 STRUCTURE OF ATOMS

CHARGED PARTICLES IN MATTER The presence of charged particles in matter is suggested by the phenomena of static electricity and electricity conduction through certain substances. Therefore, Atoms can be divided further into sub-atomic particles. *SUB-ATOMIC PARTICLES An atom is the smallest unit of an element that still retains its chemical properties. It consists of three fundamental sub-atomic particles: Electrons (e−): These are the negatively charged particles having very little mass. They orbit the nucleus. Protons (p+): These are the positively charged particles. They are located in the nucleus and have a mass of about one atomic mass unit. Neutrons (n): These are the particles that are neutral (have no charge). They are also found in the nucleus and have a mass roughly equivalent to that of a proton. EARLY MODELS OF ATOM *DALTON’S ATOMIC THEORY Dalton’s theory states that matter is made up of small indestructible atoms that combine in set ratios and rearrange in reactions without being created or destroyed. This theory suggested that Atom is indivisible – which could not be broken down into smaller particles. # But the discovery of Sub-Atomic Particles inside the atom disproved this principle of Dalton’s atomic theory. *DISCOVERY OF ELECTRONS (1897) -Given by: J.J. Thomson in 1897. -J.J. Thomson discovered the electron in 1897 through the cathode ray experiment, proving atoms are not indivisible. -Experiment Setup -Key Observations -Conclusion -Thomson’s Contribution -Characteristics of an Electron *DISCOVERY OF PROTON -Given by: E. Goldstein in 1886 –E. Goldstein discovered protons in 1886 through canal rays, identifying them as positively charged particles inside atoms. -Experiment Setup -Key Observations -Conclusion -Importance -characteristics of proton *DISCOVERY OF NEUTRON – Given by: James Chadwick -In 1932, James Chadwick discovered the neutron, a neutral particle in the nucleus with mass equal to a proton. -Experiment Key Observations -Conclusion -Importance -Characteristics of Neutron ATOMIC MODEL There are three Atomic Models on Arrangement of Sub-Atomic Particles. 1) Thomson’s Model of the Atom (1898) -After discovering the electron, J.J. Thomson proposed a model to explain the structure of the atom. -Thomson imagined the atom as a sphere of positive charge with electrons studded inside it, called the Plum Pudding Model. -Main Features -Limitations -Importance 2) Rutherford’s Model (Nuclear Model) -Rutherford performed the Gold Foil Experiment (α-particle scattering experiment) with Geiger and Marsden. -Aim: To test Thomson’s Plum Pudding Model. -Experiment Setup -Observations -Main Features of Rutherford’s Model -Limitations -Importance 3) Bohr’s Model -Niels Bohr improved Rutherford’s model. -Solved the stability problem and explained hydrogen spectrum. -Postulates of Bohr’s Model -Achievements –Limitations Atomic Number and Mass Number An atom is made up of subatomic particles: protons, neutrons, and electrons. The atomic number and mass number are two important terms used to describe the composition of an atom. *Atomic Number (Z) The atomic number, symbolized by Z, is the number of protons in the nucleus of an atom. Formula: Atomic Number(Z)=Number of Protons For a neutral atom: Number of Electrons=Number of Protons *Mass Number (A) The mass number, symbolized by A, is the total number of protons and neutrons in the nucleus of an atom. Since the mass of electrons is negligible, the mass number essentially represents the total mass of the atom’s nucleus. Formula: Mass Number(A)=Number of Protons + Number of Neutrons You can rearrange this formula to find the number of neutrons: Number of Neutrons = Mass Number(A) – Atomic Number(Z) *Isotope Notation Elements are often represented with their atomic and mass numbers. The notation is as follows: Where: Example: Carbon (C) A common isotope of carbon has an atomic number of 6 and a mass number of 12. This can be written as: Electron Distribution in Orbits After the discovery of protons, electrons, and neutrons, the next task was to understand how electrons are arranged within an atom. -Niels Bohr and Bury developed laws for the distribution of electrons in different shells (orbits/energy levels) surrounding the nucleus. *Rules for Electron Distribution 1. Naming of Shells 2. Maximum Number of Electrons in a Shell 3. Octet Rule (Stability Rule) 4. Filling of Electrons in Successive Shells *Importance of Electron Distribution VALENCY Valency is the combining capacity of an atom. It is the number of electrons an atom must gain, lose, or share to achieve a stable electronic configuration, typically having a full outermost shell (an octet of 8 electrons, or a duplet of 2 for elements like Helium). This stable state resembles the electronic configuration of a noble gas. -Atoms are stable when they have 8 electrons in their outermost shell (Octet Rule). -To become stable, atoms: *How to Determine Valency The valency of an element is determined by the number of electrons in its outermost shell, known as valence electrons. *Types of Valency Based on how atoms achieve stability, we can distinguish between two types of valency: *Noble Gases: Zero Valency Noble gases (Group 18 elements) like Helium, Neon, and Argon have a completely filled outermost shell (a stable octet or duplet). Because they are already stable, they do not need to gain, lose, or share electrons. #Valency of noble gases is zero. They are generally unreactive. *Importance of Valency ISOTOPES AND ISOBARS *Isotopes -Definition – Characteristics – Example: Chlorine has two isotopes, Chlorine-35 and Chlorine-37. – Uses of Isotopes *Isobars – Definition – Characteristics

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