- Class 8 Science
- Class 8 Maths
- Class 8 Social Science
- Class 8 English
- NCERT Solutions for Class 8 Maths
NCERT Solutions for Class 8 Maths
NCERT Solutions for Class 8 Maths: Mathematics is a subject that is useful for students in every phase of life. It does not matter if you are choosing science or biology or commerce stream. Some basic maths will always be there in each of these streams. Thus, it becomes important for students to have a strong base in this subject. Here we are providing you with the solutions to all the exercises given in the textbook.
NCERT Solutions for Class 8 Maths
- Chapter 1 Rational Numbers
- Chapter 2 Linear Equations in One Variable
- Chapter 3 Understanding Quadrilaterals
- Chapter 4 Practical Geometry
- Chapter 5 Data Handling
- Chapter 6 Squares and Square Roots
- Chapter 7 Cubes and Cube Roots
- Chapter 8 Comparing Quantities
- Chapter 9 Algebraic Expressions and Identities
- Chapter 10 Visualising Solid Shapes
- Chapter 11 Mensuration
- Chapter 12 Exponents and Powers
- Chapter 13 Direct and Indirect proportions
- Chapter 14 Factorisation
- Chapter 15 Introduction to Graphs
- Chapter 16 Playing with Numbers
IIT Foundation Mathematics Class 8
The IIT Foundation Series prepares students to gear up for the Joint Entrance Examinations (JEE), and various talent search examinations like NTSE, Olympiads, KVPY, etc. . The core objective of the series is to help aspiring students understand the basic concepts with more clarity, in turn, developing a problem-solving approach. It also encourages students to attempt various competitive examinations from an early age.
UNIT 1 : NUMBER SYSTEM
Chapter 1. Numbers
Chapter 2. Fractions and Decimals
Chapter 3. HCF and LCM
Chapter 4. Square Roots and Cube Roots
Chapter 5. Exponents
Chapter 6. Surds
UNIT 2 : ALGEBRA
Chapter 7. Algebraic Expressions and Identities
Chapter 8. Factorization of Algebraic Expressions
Chapter 9. HCF and LCM of Polynomials and Rational Expressions
Chapter 10. Linear Equations in One Variable
Chapter 11. Simultaneous Linear Equations
Chapter 12. Quadratic Equations
Chapter 13. Linear Inequalities
Chapter 14. Matrices
UNIT 3 : COMMERCIAL MATHEMATICS
Chapter 15. Ratio and Proportion
Chapter 16. Percentage and Its Applications
Chapter 17. Average
Chapter 18. Simple Interest
Chapter 19. Compound Interest
Chapter 20. Time and Work
Chapter 21. Distance, Time and Speed
UNIT 4 : GEOMETRY
Chapter 22. Triangles
Chapter 23. Polygons and Quadrilaterals
Chapter 24. Circles
UNIT 5 : MENSURATION
Chapter 25. Area and Perimeter of Rectangle, Square, Parallelograms, Triangles and Circles
Chapter 26. Area and Perimeter of Rhombus, Trapezium and Polygons
Chapter 27. Volume and Surface Area
UNIT 6 : STATISTICS
Chapter 28. Data Handling
Chapter 29. Probability
UNIT 7 : SETS
Chapter 30. Sets
UNIT 8 : CO-ORDINATE GEOMETRY
Chapter 31. Co-ordinate Geometry
UNIT 9 : TRIGONOMETRY
Chapter 32. Trigonometrical Ratios
Chapter 33. Trigonometrical Ratios of Standard Angles
Chapter 34. Some Applications of Trigonometry
Class 8 Science , Notes ,Test Papers, Sample Papers, NCERT Solutions(2020-2021)
Physics : Class VIII
Force and Pressure
- Idea of Force : A push or a pull
- Force and Motion – Change in State of Motion
- Force – Interaction of Forces and Change in Shape due to Force
- Contact Force – Friction, Applied Force and Normal Force
- Non-Contact Force – Gravitational Force, Electrostatic Force and Magnetic Force
- The Concept of Pressure
- Hydro-static Pressure – Pressure Exerted by Fluids
- Atmospheric Pressure – Hydro-static Pressure exerted by Gases
Friction
- Friction – factors affecting friction
- Sliding and rolling friction
- Kinetic Friction
- Advantages and disadvantages of friction for the movement of automobiles
- Airplanes and boats/ships : Fluid Friction
- Friction and Frictional Force – A Necessary Evil
Sound
- Sound produced by vibrating bodies
- Sound produced by humans
- Medium of Propagation
- How do we hear sound ?
- Amplitude, Time Period, And Frequence of a vibration
- Loudness and Pitch
- Audible and in audible sound
- Difference between noise and music
- Noise pollution and its preventive measures
Chemical Effects of Electric Current
- Electric Current
- Conduction of Electricity: Do Liquids Conduct Electricity?
- Conduction of Electricity in Liquids – Electrolysis
- Electrolysis and Electroplating
Some Natural Phenomena
- Lightning
- Charging by rubbing
- Transfer of Charge
- The Story of Lightning
- Lightning Safety
- Phenomena related to earthquakes
- Protection against earthquakes
Light
- Reflection of Light – The Laws of Reflection
- Characteristics of image formed with a plane mirror
- Reflection of Light – Regular Reflection, Diffused Reflection and Multiple Reflection
- Sunlight – white or colored ?
- Structure of the eye
- Non-Optical Low Vision Aids – Devices to Help the Blind and the Visually Impaired
- Optical Low Vision Aids – Devices to Help the Blind and the Visually Impaired
- Braille – Helping the Blind and the visually impaired read
Stars And The Solar System
- Celestial Bodies
- Moon
- Stars
- Planet
- Constellations
- Motion of celestial objects in space
- The Solar System
- Other Members of the Solar System
Chemistry: Class VIII
Synthetic Fibres and Plastics
- Synthetic fibers
- Plastics and other synthetic materials
- Usefulness of plastics
- Disadvantages of plastics
- Fibrous materials in use
Materials: Metals & Non-Metals
- Metals : Physical and Chemical Properties and Uses
- Non-Metals : Physical and Chemical Properties and Uses
Coal and Petroleum
- Coal and its story
- Natural Resources : Inexhaustible and exhaustible natural resources
- Useful products obtained from coal
- Formation of coal and petroleum in nature
- Petroleum and refining of petroleum
- Natural Gas
- Natural resources are limited
- Consequences of over extraction of coal and petroleum
Combustion and Flame
- Combustion and types of combustion
- Flame
- Fire Control
- Fuels : Types of fuels
- Heat released from fuels
- Fuel efficiency and cost
- Effects of burning fossil fuels
Pollution of Air and Water
- Agrochemicals and their effects
- Air Pollution and Effects of Air Pollution – Acid Rain and Taj Mahal
- Greenhouse effect
- How to reduce air pollution?
- Water pollution
- Potable water
- How to reduce water pollution
Biology Class VIII
Crop Production and Management
- Agricultural practices
- Preparation of soil
- Sowing
- Irrigation
- Protection form weed
- Harvesting and shortage
- Food from animals
Microorganisms: Friend and Foe
- Microorganisms
- Microorganism and us: Friendly microorganisms
- Disease causing microorganisms
- Food preservation
- Nitrogen fixation
- Nitrogen Cycle
Conservation of Plants and Animals
- Deforestation and its causes and consequences
- Conservation of wildlife, sanctuary, national park, zoo, forest reserves
- Flora and Fauna
- Endemic species
- Endangered species and red data book
- Migration
- Reforestation
Cell – Structure and Function
- Discovery of cell
- Organism show variety in cell number, shape and size
- Cell structure and function, Parts of cell: cell membrane, cytoplasm
- Nucleus, vacuole and chloroplast
- Comparison of plant and animal cell
Reproduction in Animals
- Modes of reproduction
- Sexual reproduction: male and female reproductive organs
- Internal and external fertilization, development of embryo
- Viviparous and oviparous organisms, young ones to adults
- Asexual reproduction
Reaching the Age of Adolescence
- Adolescence and puberty: Secondary sexual characteristics
- Role of hormones in initializing reproductive functions
- Reproductive phase in humans
- How is the sex of baby determined
- Hormones other than sex hormones
- Role of hormones in completing the life history of insects and frogs
- Reproductive Health
