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CBSE Solutions, PDF Book, MCQ, Revision Notes, Important Questions, Sample Paper, Previous Year Paper

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Combustion & Flame Science Class 8 Chapter 4 Question & Answer

Solutions For All Chapters Science Class 8 Question 1. List conditions under which combustion can take place. Answer: Combustion can take place in the presence of: (a) a combustible substance. (b) oxygen, that is, the supporter of combustion. (c) attainment of ignition temperature of the substance. Question 2. Fill in the blanks. (a) Burning of […]

Coal and Petroleum Science Class 8 Chapter 3 Question & Answer

Solutions For All Chapters Science Class 8 Question 1. What are the advantages of using CNG and LPG as fuels? Answer: The advantages of using CNG and LPG as fuels are: 1. They burn with a smokeless flame and so does not cause any pollution. 2. They leave no ash on burning. 3. They are […]

Science Class 8 Chapter 4 Question Answer

Materials Metals and Non Metals Solutions For All Chapters Science Class 8 Materials: Metals and Non-Metals NCERT Textbook Questions Question 1. Which of the following can be beaten into thin sheets? (a) Zinc (b) Phosphorus (c) Sulphur (d) Oxygen Answer:(a) Zinc Question 2. Which of the following statements is correct? (a) All metals are ductile. […]

Science Class 8 Chapter 3 Question Answer

Synthetic Fibers and Plastics Solutions For All Chapters Science Class 8 Synthetic Fibers and Plastics NCERT Textbook Questions Question 1. Explain why some fibres are called synthetic. Answer: Some fibres are called synthetic fibres because they are made by man using chemicals. Question 2. Mark (✓) the correct answer. Rayon is different from synthetic fibres […]

Microorganisms Friend & Foe Science Class 8 Chapter 2 Question & Answer

Solutions For All Chapters Science Class 8 Question 1. Fill in the blanks. (a) Microorganisms can be seen with the help of a _____ (b) Blue-green algae fix ______ directly from the air to enhance the fertility of soil. (c) Alcohol is produced with the help of _____ (d) Cholera is caused by ______ Answer: […]

Crop Production & Management Science Class 8 Chapter 1 Question & Answer

Solutions For All Chapters Science Class 8 Question 1. Select the correct word from the following list and fill in the blanks. float, water, crop, nutrients, preparation (a) The same kind of plants grown and cultivated on a large scale at a place is called _____ (b) The first step before growing crops is _______ […]

Science Class 8 Question Answer CBSE

Crop Production and Management Chapter 1 Science Class 8 Microorganisms: Friend and Foe Chapter 2 Science Class 8 Coal and Petroleum Chapter 3 Science Class 8 Combustion and Flame Chapter 4 Science Class 8 Conservation of Plants and Animals Chapter 5 Science Class 8 Reproduction in Animals Chapter 6 Science Class 8 Reaching the Age […]

Science Class 6 Chapter 16 Question Answer

Garbage In Garbage Out Solutions For All Chapters Science Class 6 Class 6 Science Chapter 16 Textbook Questions 1. (a) Which kind of garbage is not converted into compost by the redworms? (b) Have you seen any other organism besides redworms, in your pit? If yes, try to find out their names. Draw pictures of […]

Science Class 10 Chapter 14 Question Answer

Sources of Energy Solutions For All Chapters Science 10 NCERT TEXTBOOK Solutions for Class 10 Science Question 1 A solar water heater cannot be used to get hot water on (a) a sunny day (b) a cloudy day (c) a hot day (d) a windy day Answer: (b) A cloudy day. Question 2 Which of […]

Science Class 6 Air Around Us Chapter 11 Question Answer

Solutions For All Chapters Science Class 6 1. What is the composition of air? Ans: Air is mixture of nitrogen, oxygen, carbon dioxide, water vapour and a few other gases. Some dust particles may also be present in it. 2. Which gas in the atmosphere is essential for respiration? Ans: Oxygen. 3. How will you show […]

Science Class 6 Chapter 14 Question Answer

Water Solutions For All Chapters Science Class 6 Class 6 Science Chapter 14 Textbook Questions  1. Fill up the blanks in the following: (a) The process of changing of water into its vapour is called_______________ . (b) The process of changing water vapour into water is called_____________ . (c) No rainfall for a year or […]

Science Class 6 Fun with Magnets Chapter 10 Question Answer

Solutions For All Chapters Science Class 6 1. Fill in the blanks in the following: (i) Artificial magnets are made in different shapes such as_________ ,_______ and (ii) The materials which are attracted towards a magnet are called_________ (iii) Paper is not a________ (iv) In olden days, sailors used to find direction by suspending a […]

Science Class 10 Chapter 12 Question Answer

Magnetic Effects of Electric Current Solutions For All Chapters Science 10 CBSE NCERT TEXTBOOK Solutions for Class 10 Science Question 1 Which of the following correctly describes the magnetic field near a long straight wire ? (a) the field consists of straight lines perpendicular to the wire (b) the field consists of straight lines parallel […]

Science Class 6 Electricity and Circuits Chapter 9 Question Answer

Solutions For All Chapters Science Class 6 1. Fill in the blanks: (a) A device that is used to break an electric circuit is called_______________ (b) An electric cell has___________ Ans: (a) switch (b) two 2. Mark ‘True’ or ‘False’ for the following statements: (a) Electric current can flow through metals. (b) Instead of metal […]

Science Class 6 Light Shadows & Reflection Chapter 8 Question Answer

Solutions For All Chapters Science Class 6 1. Rearrange the boxes given below to make a sentence that helps us understand opaque objects. Ans: 2. Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous: Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden […]

Science Class 6 Motion & Measurement of Distances Ch 7 Question Answer

Solutions For All Chapters Science Class 6 1. Give two examples each of modes of transport used on land, water and air. Ans: (i) Land—Bus, truck, train. (ii) Water—Ship, boat. (iii) Air—Aeroplane, Helicopter. 2. Fill in the blanks: (i) One metre is___________ (ii) Five kilometre is___________ (iii) Motion of a child on a swing is_____________ […]

Science Class 10 Chapter 11 Question Answer

Electricity Solutions For All Chapters Science 10 CBSE NCERT TEXTBOOK Solutions for Class 10 Science 1. A piece of wire of resistance R is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R′, then the ratio R/R′ is – (a) 1/25  (b) 1/5  […]

Science Class 6 The Living Organisms Characteristics & Habitats Ch 6 Question Answer

Solutions For All Chapters Science Class 6 1. What is a habitat? Ans: The surroundings where animals live is called their habitat. The organisms depend on their habitat for their food, water, air, shelter and other needs. Habitat means a dwelling place. 2. How are cactus adapted to survive in a desert? Ans: Cactus are […]

Science Class 6 Body Movements Chapter 5 Question Answer

Solutions For All Chapters Science Class 6 1. Fill in the blanks: (a) Joints of the bones help in the_____________ of the body. (b) A combination of bones and cartilages forms the_______________ of the body. (c) The bones at the elbow are joined by a______________ (d) The contraction of the____________ pulls the bones during Ans: […]

Science Class 6 Getting to Know Plants Chapter 4 Question Answer

Solutions For All Chapters Science Class 6 1. Correct the following statements and rewrite them in your notebook. (a) Stem absorbs water and minerals from the soil. (b) Leaves hold the plant upright. (c) Roots conduct water to the leaves. (d) The number of sepals and petals in a flower is always equal. (e) If […]

Science Class 6 Chapter 6 Question Answer

Changes Around Us Solutions For All Chapters Science Class 6 Class 6 Science Chapter 6 Textbook Questions  1. To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed? Ans:  Yes, it can be reversed by unfolding the dress. 2. You accidentally dropped your […]

Science Class 6 Separation of Substances Ch 3 Question Answer

Solutions For All Chapters Science Class 6 1. Why do we need to separate different components of a mixture? Give two examples. Ans: Among different components of mixture there are many substances which are harmful or not useful for us. To remove these harmful or unuseful components we need to separate them. For example: (a) […]

Science Class 6 Sorting Materials Into Groups Ch 2 Question Answer

Solutions For All Chapters Science Class 6 Q. 1. Name five objects which can be made from wood. Ans. (i) Table (ii) Chair (iii) Doors (iv) Boat (v) Bed Q.2. Select those objects from the following which shine: Glass bowl, plastic toy, steel spoon, cotton shirt Ans. Glass bowl and steel spoon are shining objects. […]

Science Class 10 Chapter 10 Question Answer

Human Eye and Colourful World Solutions For All Chapters Science 10 CBSE NCERT TEXTBOOK Solutions for Class 10 Science Q1. The human eye can focus on objects at different distances by adjusting the focal length of the eye lens. This is due to (a) presbyopia (b) accommodation (c) near-sightedness (d) far-sightedness Answer: (b) accommodation. Q2. […]

Science Class 6 Chapter 3 Question Answer

Fibre to Fabric Solutions For All Chapters Science Class 6 Class 6 Science Chapter 3 Textbook Questions Q.1. Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute. Ans. Natural fibres: wool, cotton, jute, silk. Synthetic fibres: nylon, polyester. Q.2. State whether the following statements are ‘true’ or false’: (a) Yam […]

Science Class 6 Components of Food Chapter 1 Question Answer

Solutions For All Chapters Science Class 6 1. Name the major nutrients in our food. Ans: The major nutrients in our food are carbohydrates, proteins, fats, vitamins and minerals. The table below shows the nutrients present in some food items: 2. Name the following: (a) The nutrients which mainly give energy to our body. (b) […]

Science Class 6 Chapter 1 Question Answer

Food Where Does It Come From Solutions For All Chapters – Science Class 6th Class 6 Science Chapter 1 Textbook Questions Q. 1. Do you find that all living beings need the same kind of food? Ans. No, all living beings do not need same kind of food. Q.2. Name five plants and their parts […]

Science Class 6 Question Answer

Chapter 1 Components of Food Chapter 1 Science Class 6 Chapter 2 Sorting Materials Into Groups Chapter 2 Science Class 6 Chapter 3 Separation of Substances Chapter 3 Science Class 6 Chapter 4 Getting to Know Plants Chapter 4 Science Class 6 Chapter 5 Body Movements Chapter 5 Science Class 6 Chapter 6 The Living […]

Science Class 10 Chapter 9 Question Answer CBSE

Light Reflection and Refraction Solutions For All Chapters Science 10 NCERT TEXTBOOK Solutions for Class 10 Science Question 1 Which one of the following materials cannot be used to make a lens ? (a) Water (b) Glass (c) Plastic (d) Clay Answer: (d) Clay Question 2 The image formed by a concave mirror is observed […]

Motion Science Class 9 Chapter 7 Question Answer

Solutions For All Chapters Science Class 9 Questions From NCERT Textbook Question 1: An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 minutes 20 s? ANSWER: Diameter of a circular track, d = 200 […]

Science Class 10 Chapter 8 Question Answer

Heredity Solutions For All Chapters Science 10 CBSE NCERT TEXTBOOK Solutions for Class 10 Science Question 1. A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers, but almost half of them were short. This suggests that the genetic make-up […]

Science Class 10 Chapter 7 Question Answer

How Do Organisms Reproduce? Solutions For All Chapters Science 10 CBSE NCERT TEXTBOOK Solutions for Class 10 Science Question 1 Asexual reproduction takes place through budding in (a) amoeba (b) yeast (c) plasmodium (d) leishmania Answer: (b) Yeast Question 2 Which of the following is not a part of the female reproductive system in human […]

Science Class 10 Chapter 6 Question Answer

Control and Coordination Solutions For All Chapters Science 10 CBSE NCERT TEXTBOOK Solutions for Class 10 Science Question 1 Which of the following is a plant hormone? (a) Insulin (b) Thyroxin (c) Oestrogen (d) Cytokinin Answer: (d) Cytokinin Question 2 The gap between two neurons is called a (a) dendrite (b) synapse (c) axon (d) […]

Gravitation Science Class 9 Chapter 9 Question Answer

Solutions For All Chapters Science Class 9 Questions From NCERT Textbook  Question 1: How does the force of gravitation between two objects change when the distance between them is reduced to half? ANSWER: According to the universal law of gravitation, gravitational force (F) acting between two objects is inversely proportional to the square of the […]

Science Class 10 Chapter 5 Question Answer

Life Processes Solutions For All Chapters Science 10 CBSE NCERT TEXTBOOK Solutions for Class 10 Science Question 1 The kidneys in human beings are a part of the system for (i) nutrition (ii) respiration (iii) excretion (iv) transportation Answer: (iii) Excretion Question 2 The xylem in plants are responsible for (i) transport of water (ii) […]
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