Science Class 10

1. Introduction to Force 5 Minutes _Free

2. Revisiting Newton's first Laws of motion 3 Minutes _Free

3. Revisiting Newton's second Laws of motion 7 Minutes _Free

4.Revisiting Newton's third Laws of motion 4 Minutes _Free

5. Universal Law of Gravitation 5 Minutes _Free

6.Gravitional constant, 'G' 4 Minutes _Free

7. Gravitational force between very less massive objects 4 Minutes _Free

8. Change in Gravitational Force with change in mass of bodies 5 Minutes _Free

9.Change in Gravitational Force with change in mass of bodies-1 6 Minutes

10. Change in Gravitational Force with change in mass of bodies-2 8 Minutes

11. Coin and feather experiment 8 Minutes

12. Variation in the value of 'g' due to shape of Earth 4 Minutes

13. Variation in 'g' with height above the surface of the Earth 11 Minutes

14. Variation of 'g' with depth from the Earth's surface 15 Minutes

15. Concept of mass, weight, freefall and weightlessness 14 Minutes

1. Liquid pressure 9 Minutes

2. Pascal's Law 6 Minutes

3. Application's of Pascal's Law 6 Minutes

4. Upthrust 6 Minutes

5. Density, Relative density and Relation between Density and Upthrust 15 Minutes

6. Archimedes Principle 9 Minutes

7. Law of Floatation 15 Minutes

8. Atmospheric pressure 8 Minutes

9. Instruments used for measuring Atmospheric pressure 11 Minutes

10. Instruments based on Atmospheric pressure (Syringe) 2 Minutes

11. Working method of an Air Pump 3 Minutes

12. Working method of a Water pump 6 Minutes

1. Introduction to energy 10 Minutes

2. Classification of sources of energy 3 Minutes

3. Classification of sources of energy on the basis of replacibility- 4 Minutes

4. Sources of energy(Solar energy) 6 Minutes

5. Limitation and Uses of Solar Energy 9 Minutes

6. Sun as an Ultimate source of energy 4 Minutes

7. Source of Solar Energy 9 Minutes

8. Evidence of nuclear fusion in the Sun 4 Minutes

9. Sources of energy(Fossil fuels) 12 Minutes

10. Sources of energy(Hydroelectricity) 5 Minutes

11. Alternative Sources of energy(Bio fuel) 6 Minutes

12. Alternative Sources of energy(Nuclear enegy) 6 Minutes

13. Advantages of Nuclear energy 4 Minutes

14. Alternative Sources of energy(Tidal energy, Wind energy, Geo-thermal energy) 5 Minutes

15. Present status of energy in the world 5 Minutes

16. Energy Conservation 6 Minutes

1. Introduction to Heat 7 Minutes

2. Units of heat energy 7 Minutes

3. Introduction to Temperature 4 Minutes

4. Relationship between different units of temperature 5 Minutes

5. Problems related to conversion of units of temperature 4 Minutes

6. Different Types of Temperatures 8 Minutes

7. Thermometric Liquids 2 Minutes

8. Relationship Between Heat and Temperature 4 Minutes

9. Specific Heat Capacity 5 Minutes

10. Heat equation and Principle of caloriemetry 8 Minutes

1. Introduction to light 3 Minutes

2. Lens 5 Minutes

3. Differences between Concave and Convex lens 3 Minutes

4. Some terms related to lens 10 Minutes

5. How lenses work? 7 Minutes

6. Rules of Refraction in lens 4 Minutes

7. Ray diagrams in convex lens(Objects at infinity) 10 Minutes

8. Image when object is beyond 2F 4 Minutes

9. Image when object is at 2F 3 Minutes

10. Image when object is between F and 2f 4 Minutes

11. Image when object is at F 4 Minutes

12.Image when object is between F and O 5 Minutes

13. Ray diagram in concave lens 4 Minutes

14. Image when object is at a measurable distance 4 Minutes

15. Image when object is at infinity 2 Minutes

16. Concept of Real and Virtual image 5 Minutes

17. Magnification 5 Minutes

18. Relation between u, v and f 9 Minutes

19. Power of lens 6 Minutes

20. Uses of lens 3 Minutes

21. Optical instruments 3 Minutes

22. Basic anatomy of an human eye 8 Minutes

23. Range of human eye and power of accomodation 5 Minutes

24. Defects of vision 14 Minutes

1. Introduction to electricity 6 Minutes

2. DC and AC 12 Minutes

3. Effects of electric current(Heating effect) 5 Minutes

4. Lighting effect of Electric Currrent 8 Minutes

5. Magnetic effect of Electric Currrent 13 Minutes

6. Chemical Effect of Electric Currrent 5 Minutes

7. Inter-relation between electricity and magnetism 3 Minutes

8. Magnetic flux and Electromagnetic Induction 9 Minutes

9. Faraday's laws of electromagnetic induction 2 Minutes

10. Bicycle dynamo 6 Minutes

11. Generator 8 Minutes

12. Electric motor 3 Minutes

13. Different electrical devices 5 Minutes

14. Transformer 11 Minutes

15. Electrical Power 10 Minutes

16. Commercial Unit of Energy 4 Minutes

17. Numerical Problems Related to Commercial unit of Power 10 Minutes

1. Mendeleev's Periodic table 8 Minutes

2. Characteristics of Mendeleev's Periodic Table 2 Minutes

3. Merits and demerits of Mendeleev's periodic table 10 Minutes

4. Modern Periodic Table 11 Minutes

5. Merits of Modern Periodic Table 5 Minutes

6. Periods 8 Minutes

7. Groups 11 Minutes

8. Characteristics of Periods 9 Minutes

9. Characteristics of groups 15 Minutes

10. Uses of Periodic table 2 Minutes

11. Subshell 15 Minutes

12. Electronic Configuration and Aufbau Principle 14 Minutes

13. Understanding electronic configuration 7 Minutes

1. Physical and Chemical change 7 Minutes

2. Chemical Reaction 5 Minutes

3. Types of chemical reaction (Combination reaction and Decomposition reaction) 6 Minutes

4. Displacement reaction 8 Minutes

5. Acid-Base reaction 4 Minutes

6. Factors effecting rate of chemical reaction 10 Minutes

7. Catalyst 3 Minutes

8. Endothermic and Exothermic Reaction 4 Minutes

9. Promoters, Inhibitors and Poisons 2 Minutes

1. Acids 5 Minutes

2. Classification of Acids 10 Minutes

3. Characteristics of Acids 9 Minutes

4. Uses of Acids 3 Minutes

5. Bases 4 Minutes

6. Preparation of bases 3 Minutes

7. Classification of Bases 3 Minutes

8. Characteristics of Bases 12 Minutes

9. Uses of Bases 4 Minutes

10. Salts 5 Minutes

11. Classification of Salts 5 Minutes

12. Properties of Salts 4 Minutes

13. Preparation and Uses of salts 6 Minutes

14. Neutralization reaction 3 Minutes

15. Uses of Neutralization reaction 4 Minutes

1. Carbon Dioxide and its Occurrence 5 Minutes

2. General methods of preparation of carbon dioxide gas 3 Minutes

3. Laboratoryprepration of Carbon Dioxide gas 7 Minutes

4. Test of Carbon Dioxide and its Manufacture 6 Minutes

5. Physical and Chemical properties of Carbon Dioxide 11 Minutes

6. Uses of Carbon dioxide 7 Minutes

7. Ammonia 6 Minutes

8. Laboratory Preparation of Carbon Dioxide 5 Minutes

9. Test of Ammonia gas and its Manufacture 4 Minutes

10. Physical and Chemical priperties of Ammonia gas 8 Minutes

11. Uses of Ammonia Gas 2 Minutes

1. Introduction to metals 4 Minutes

2. Minerals, Ores and Metallurgy 3 Minutes

3. Introduction to Iron 3 Minutes

4. Occurrence and Ores of Iron 2 Minutes

5. Physical properties and Classification of Iron 3 Minutes

6. Uses of Iron 2 Minutes

7. Introduction to Aluminium 3 Minutes

8. Occurrence and ores of Aluminium 3 Minutes

9. Physical properties and uses of Aluminium 6 Minutes

10. Introduction to Copper 6 Minutes

11. Occurrence and Ores of Copper 3 Minutes

12. Physical properties and uses of Copper 6 Minutes

13. Introduction to Silver 5 Minutes

14. Occurrence and Ores of Silver 3 Minutes

15. Physical properties and uses of Silver 7 Minutes

16. Introduction to Gold 7 Minutes

17. Occurrence and Ores of Gold 4 Minutes

18. Physical properties and uses of Gold 7 Minutes

19. Occurrence of metals in Nepal 2 Minutes

1. Introduction to Hydrocarbons 5 Minutes

2. Saturated Hydroarbons 12 Minutes

3. Unsaturated Hydrocarbons 14 Minutes

4. IUPAC Naming 9 Minutes

5. Homologous Series 13 Minutes

6. Alkyl group and functional groups 4 Minutes

7. Some hydrocarbons 8 Minutes

8. Some derivatives of hydrocarbon 7 Minutes

9. Some derivatives of hydrocarbon 15 Minutes

1. Introduction 4 Minutes

2. Cement and its uses 6 Minutes

3. Glass and its characteristics 5 Minutes

4. Types of glass and their uses 10 Minutes

5. Coloured glass 3 Minutes

6. Ceramics 5 Minutes

7. Fibres 2 Minutes

8. Merits and demerits of natural fibres 4 Minutes

9. Artificial fibres 5 Minutes

10. Merits and demerits of artificial fibres 3 Minutes

11. Plastic 6 Minutes

12. Types of plastic 11 Minutes

13. Properties of plastic 3 Minutes

14. Uses and demerits of plastic 5 Minutes

15. Soaps and detergents 11 Minutes

16. Pesticides 3 Minutes

17. Insecticides 5 Minutes

18. Advantages, disadvantages and precautions in using insecticides 7 Minutes

19. Fertilizers 8 Minutes

20. Chemical fertilizers 20 Minutes

21. Chemical pollution and Solid waste management 20 Minutes

1. Introduction to Silkworm 6 Minutes

2. Lifecycle of silkworm 12 Minutes

3. Economic importance of silkworm 3 Minutes

4. Characteristics of Silk 3 Minutes

5. Introduction to Honey bee 6 Minutes

6. Lifecycle of Honey bee 9 Minutes

7. Economic importance of Honey bee 4 Minutes

1. Stimulus and response 3 Minutes

2. Nervous system and neurons 9 Minutes

3. Central Nervous System(Brain) 18 Minutes

4. Central Nervous System(Spinal cord) 4 Minutes

5. Reflex and its Significance 9 Minutes

6. Peripheral Nervous System 4 Minutes

7. Autonomic Nervous System 4 Minutes

8. Glandular system 10 Minutes

9. Different glands and their functions 13 Minutes

1. Blood and its components(Plasma) 10 Minutes

2. Blood corpuscles 15 Minutes

3. Functions of blood 5 Minutes

4. The Heart 5 Minutes

5. Parts of heart and the functions of four blood vessels and four valves of heart. 12 Minutes

6. Working of the Heart 7 Minutes

7. Blood vessels 8 Minutes

8. Types of blood circulation and Heartbeat 7 Minutes

9. Blood pressure 4 Minutes

10. Some diseases related to blood circulatory system(High Blood Pressure) 7 Minutes

11. Some diseases related to blood circulatory system(Diabetes) 6 Minutes

12. Some diseases related to blood circulatory system(Gout) 7 Minutes

1. Chromosomes, genes and DNA 5 Minutes

2. Types of Chromosomes 4 Minutes

3. Some important features of chromosomes 9 Minutes

4. Homologous chromosomes and function of chromosomes 5 Minutes

5. Diploid and Haploid cells 6 Minutes

6. Mechanism of Sex determination in Humans 11 Minutes

7. Genetic disorders(Mendelian disorder) 8 Minutes

8. Genetic disorders(Chromosomal disorder) 17 Minutes

9. Cell division and its types 16 Minutes

1. Asexual Reproduction 4 Minutes

2. Types of asexual reproduction(Fission and Budding) 7 Minutes

3. Fragmentation and Regeneration and Sporulation 5 Minutes

4. Vegetative reproduction 4 Minutes

5. Artificial vegetative propagation 14 Minutes

6. Tissue culture 3 Minutes

7. Advantages of vegetative propagation and asexual reproduction 5 Minutes

8. Sexual reproduction(Conjugation) 7 Minutes

9. Sexual reproduction in Plants and Animals 16 Minutes

10. Significance of Sexual reproduction 2 Minutes

1. Heredity 4 Minutes

2. Why peas ? 5 Minutes

3. Some terms used in Genetics 13 Minutes

4. Mendel's Experiment 10 Minutes

5. Law of Dominance 4 Minutes

6. Law of Segregation 9 Minutes

7. Monohybrid cross in Drosophilla and Guinea pigs 7 Minutes

8. Law of independent assortment 12 Minutes

9. Some heredity characters in Human beings 4 Minutes

10. Variation and Mutation 6 Minutes

1. Environmental pollution and its management 3 Minutes

2. Air pollution and types of pollutants 4 Minutes

3. Sources and effects of Air Pollutions 9 Minutes

4. Different measures to prevent air pollution 4 Minutes

5. Water pollution and its sources 8 Minutes

6. Measures to control air pollution 5 Minutes

7. Soil pollution and its sources 7 Minutes

8. Measures to control Soil pollution 5 Minutes

9. Conservation and management of forest 5 Minutes

10. Conservation and management of sources of water 4 Minutes

1. Hypotheses on the origin of Earth 13 Minutes

2. Geological timescale of the Earth 7 Minutes

3. Important events in different timescales(Phanerozoic eon) 8 Minutes

4. Important events in Proterozoic and Archaen Eon) 3 Minutes

5. Evolution of live in different eras 11 Minutes

6. Fossils and its identification 4 Minutes

7. Fossilization 7 Minutes

8. Importance of fossils 2 Minutes

9. Fossil Fuels 2 Minutes

10. Coal and its types 5 Minutes

11. Formation of coal 3 Minutes

12. Importance of coal 2 Minutes

13. Mineral oil 3 Minutes

14. Formation and Importance of Mineral oil 4 Minutes

1. Layers of Atmosphere 8 Minutes

2. Ozone layer 3 Minutes

3. Ozone layer depletion 4 Minutes

4. Effects of Ozone layer depletion 5 Minutes

5. Conservation of Ozone layer depletion 3 Minutes

6. Earth as a Natural greenhouse and disadvantages of green house effect 8 Minutes

7. Industrial gases and its effects 4 Minutes

8. Climate change and its effects 7 Minutes

9. International Practices for mitigation and adaptation of climate change 5 Minutes

10. National Practices for mitigation and adaptation of climate change 5 Minutes

11. Greenhouse and its advantages 3 Minutes

1. Galaxy and its types 9 Minutes

2. Milkyway Galaxy 3 Minutes

3. Constellations(Ursa major and Orion) 10 Minutes

4. Signs of Zodiac 6 Minutes

5. Importance of Constellations 3 Minutes

6. The Sun 15 Minutes

7. The Solar system 4 Minutes

8. Definition of planets 4 Minutes

9. Inner and Outer Planets 12 Minutes

10. Satellites 10 Minutes

11. Asteroids 6 Minutes

12. Comets 10 Minutes

13. Meteoroids, Meteors and Meteorites 5 Minutes

2074cc

• Question 1 8 Minutes
• Question 2 1 Minutes
• Question 3 1 Minutes
• Question 4 1 Minutes
• Question 5 2 Minutes
• Question 6 1 Minutes
• Question 7 1 Minutes
• Question 8 1 Minutes
• Question 9 1 Minutes
• Question 10 1 Minutes
• Question 11 0 Minutes
• Question 12 1 Minutes
• Question 13 0 Minutes
• Question 14 1 Minutes
• Question 15 4 Minutes
• Question 16 3 Minutes
• Question 17 3 Minutes
• Question 18 1 Minutes
• Question 19 1 Minutes
• Question 20 2 Minutes
• Question 21 4 Minutes
• Question 22 3 Minutes
• Question 23 2 Minutes
• Question 24 2 Minutes

2074dc

• Question 1 11 Minutes
• Question 2 2 Minutes
• Question 3 1 Minutes
• Question 4 5 Minutes
• Question 5 1 Minutes
• Question 6 3 Minutes
• Question 7 1 Minutes
• Question 8 1 Minutes
• Question 9 1 Minutes
• Question 10 1 Minutes
• Question 11 1 Minutes
• Question 12 2 Minutes
• QUestion 13 1 Minutes
• Question 14 1 Minutes
• Question 15 11 Minutes
• Question 16 1 Minutes
• Question 17 2 Minutes
• Question 18 1 Minutes
• Question 19 1 Minutes
• Question 20 1 Minutes
• Question 21 4 Minutes
• Question 22 4 Minutes
• Question 23 2 Minutes
• Question 24 2 Minutes

2075-province 1

• 1 9 Minutes
• 2 5 Minutes
• 3 1 Minutes
• 4 3 Minutes
• 5 1 Minutes
• 6 0 Minutes
• 7 2 Minutes
• 8 2 Minutes
• 9 1 Minutes
• 10 3 Minutes
• 11 1 Minutes
• 12 2 Minutes
• 13 1 Minutes
• 14 1 Minutes
• 15 4 Minutes
• 16 3 Minutes
• 17 1 Minutes
• 18 2 Minutes
• 19 2 Minutes
• 20 2 Minutes
• 21 2 Minutes
• 22 2 Minutes
• 23 4 Minutes
• 24 4 Minutes

2075-province 2 re exam

• Question 1 12 Minutes
• Question 2 5 Minutes
• Question 3 3 Minutes
• Question 4 1 Minutes
• Question 5 1 Minutes
• Question 6 1 Minutes
• Question 7 2 Minutes
• Question 8 1 Minutes
• Question 9 2 Minutes
• Question 10 1 Minutes
• Question 11 1 Minutes
• Question 12 1 Minutes
• Question 13 1 Minutes
• Question 14 1 Minutes
• Question 15 6 Minutes
• Question 16 2 Minutes
• Question 17 2 Minutes
• Question 18 1 Minutes
• Question 19 5 Minutes
• Question 20 1 Minutes
• Question 21 2 Minutes
• Question 22 3 Minutes
• Question 23 2 Minutes
• Question 24 2 Minutes

2075-province 2

• 1 10 Minutes
• 2 2 Minutes
• 3 1 Minutes
• 4 1 Minutes
• 5 2 Minutes
• 6 1 Minutes
• 7 1 Minutes
• 8 1 Minutes
• 9 1 Minutes
• 10 1 Minutes
• 11 1 Minutes
• 12 1 Minutes
• 13 2 Minutes
• 14 1 Minutes
• 15 5 Minutes
• 16 3 Minutes
• 17 2 Minutes
• 18 1 Minutes
• 19 2 Minutes
• 20 3 Minutes
• 21 3 Minutes
• 22 2 Minutes
• 23 3 Minutes
• 24 2 Minutes

2075-province 3

• Question 1 10 Minutes
• Question 2 2 Minutes
• Question 3 3 Minutes
• Question 4 1 Minutes
• Question 5 1 Minutes
• Question 6 1 Minutes
• Question 7 2 Minutes
• Question 8 2 Minutes
• Question 9 1 Minutes
• Question 10 1 Minutes
• Question 11 1 Minutes
• Question 12 5 Minutes
• Question 13 3 Minutes
• Question 14 1 Minutes
• Question 15 5 Minutes
• Question 16 2 Minutes
• Question 17 2 Minutes
• Question 18 0 Minutes
• Question 19 1 Minutes
• Question 20 3 Minutes
• Question 21 3 Minutes
• Question 22 3 Minutes
• Question 23 2 Minutes
• Question 24 1 Minutes

2075-province 4

• Question 1 10 Minutes
• Question 2 2 Minutes
• Question 3 2 Minutes
• Question 4 2 Minutes
• Question 5 1 Minutes
• Question 6 2 Minutes
• Question 7 1 Minutes
• Question 8 1 Minutes
• Question 9 1 Minutes
• Question 10 1 Minutes
• Question 11 1 Minutes
• Question 12 1 Minutes
• Question 13 1 Minutes
• Question 14 1 Minutes
• Question 15 6 Minutes
• Question 16 6 Minutes
• Question 17 1 Minutes
• Question 18 1 Minutes
• Question 19 1 Minutes
• Question 20 2 Minutes
• Question 21 3 Minutes
• Question 22 2 Minutes
• Question 23 4 Minutes
• Question24 2 Minutes

2075-province 5

• Question 1 10 Minutes
• Question 2 1 Minutes
• Question 3 1 Minutes
• Question 4 1 Minutes
• Question 5 1 Minutes
• Question 6 1 Minutes
• Question 7 1 Minutes
• Question 8 0 Minutes
• Question 9 1 Minutes
• Question 10 0 Minutes
• Question 11 1 Minutes
• Question 12 1 Minutes
• Question 13 1 Minutes
• Question 14 1 Minutes
• Question 15 6 Minutes
• Question 16 4 Minutes
• Question 17 3 Minutes
• Question 18 3 Minutes
• Question 19 1 Minutes
• Question 20 1 Minutes
• Question 21 3 Minutes
• Question 22 4 Minutes
• Question 23 2 Minutes
• Question 24 3 Minutes

2075-province 6

• Question 1 9 Minutes
• Question 2 2 Minutes
• Question 3 2 Minutes
• Question 4 1 Minutes
• Question 5 2 Minutes
• Question 6 1 Minutes
• Question 7 1 Minutes
• Question 8 1 Minutes
• Question 9 1 Minutes
• Question 10 1 Minutes
• Question 11 1 Minutes
• Question 12 1 Minutes
• Question 13 1 Minutes
• Question 14 1 Minutes
• Question 15 3 Minutes
• Question 16 3 Minutes
• Question 17 2 Minutes
• Question 18 3 Minutes
• Question 19 2 Minutes
• Question 20 1 Minutes
• Question 21 4 Minutes
• Question 22 2 Minutes
• Question 23 2 Minutes
• Question 24 2 Minutes

2075-province 7

• Question 1 9 Minutes
• Question 2 2 Minutes
• Question 3 1 Minutes
• Question 4 2 Minutes
• Question 5 4 Minutes
• Question 6 1 Minutes
• Question 7 2 Minutes
• Question 8 1 Minutes
• Question 9 1 Minutes
• Question 10 1 Minutes
• Question 11 1 Minutes
• Question 12 1 Minutes
• Question 13 1 Minutes
• Question 14 2 Minutes
• Question 15 4 Minutes
• Question 16 2 Minutes
• Question 17 2 Minutes
• Question 18 2 Minutes
• Question 19 4 Minutes
• Question 20 1 Minutes
• Question 21 5 Minutes
• Question 22 2 Minutes
• Question 23 2 Minutes
• Question 24 1 Minutes

2075-supplementry

• 1 8 Minutes
• 2 1 Minutes
• 3 1 Minutes
• 4 1 Minutes
• 5 1 Minutes
• 6 2 Minutes
• 7 1 Minutes
• 8 1 Minutes
• 9 1 Minutes
• 10 1 Minutes
• 11 1 Minutes
• 12 3 Minutes
• 13 3 Minutes
• 14 1 Minutes
• 15 5 Minutes
• 16 2 Minutes
• 17 1 Minutes
• 18 1 Minutes
• 19 0 Minutes
• 20 1 Minutes
• 21 6 Minutes
• 22 2 Minutes
• 23 2 Minutes
• 24 2 Minutes