CLASS - 6 SCIENCE CHAPTER - 16 GARBAGE IN,GARBAGE OUT  QUESTIONS AND ANSWERS Question no. 1 (a) Which kinds of garbage is not converted into compost by the red worms ? (b) Have you seen any other organism besides red worms,in your pit? If yes,try to find out their names. Draw pictures of these. Answer no. 1 (a) Plastic bags and articles,tin,glass,aluminium foils are not converted in compost by red worms. (b) Earthworms, small insects like ant,millipedes are found in pits. Question no. 2 Discuss: (a) Is garbage disposal the responsibility only of the government? (b) Is it possible to reduce the problems relating to disposal of garbage? Answer no. 2   (a) No,garbage disposal is not responsibility for the government only,but every citizen are responsible for it. Garbage is segregated in wet and dry waste,recycle non biodegradable and it should be disposed accordingly. House and surroundings should be cleaned. There should be no accumulation of gar...

CLASS - 6 SCIENCE  CHAPTER - 15 AIR AROUND US QUESTIONS AND ANSWERS Question no. 1 What is the composition of air? Answer no. 1 The air is a composition of oxygen,nitrogen,carbon dioxide,water vapour, dust and smoke. Question no. 2 Which gas in the atmosphere is essential for respiration? Answer no. 2 Oxygen present in the atmosphere is essential for respiration? Question no. 3 How will you prove that air supports burning? Answer no. 3 Take a candle and place it in a tub. Light the candle and fill the tub with water. Now cover the candle with an inverted glass. It is observed that candle blows out after burning some time and the water level inside the inverted glass rises to some extent. The component part of air (i.e. oxygen) inside the glass is used up in burning. After blows out candle water occupies that space. It shows that air support burning. Question no. 4 How will you show that air is dissolved in water? Answer no. 4 Take a glass...

CLASS - 6 SCIENCE  CHAPTER - 14 WATER QUESTIONS AND ANSWER Question no. 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 more may lead to ________________ in that region. (d) Excessive rain may cause ______________. Answer no. 1 (a) evaporation (b) condensation (c) drought (d) floods Question no. 2 State for each of the following whether it is due to evaporation or condensation: (a) water drops appear on the outer surface of a glass containing cold water. (b) steam rising from wet clothes while they are ironed. (c) Fog appearing on a cold winter morning. (d) blackboard dries up after wiping it. (e) steam rising from hot girdle when water sprinkled on it. Answer no. 2 (a) condensation (b) evaporation (c) condensation (d) evaporation (e) evaporation Q...

CLASS - 6 SCIENCE CHAPTER - 13  FUN WITH MAGNETS   QUESTIONS AND ANSWERS Question no. 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 ___________________ material. (iv) In olden days, sailors used to find direction by suspending a piece of ______________________. (v) A magnet always has ____ poles. Answer no. 1 (i) Bar magnet,horse shoe and cylindrical. (ii) Magnetic (iii) Magnetic (iv) Magnet (v) Two Question no. 2 State whether the following statements are true or false: (i) a cylindrical magnet has only one pole. (ii) artificial magnet were discovered in Greece. (iii) similar poles of a magnet repel each other. (iv) maximum iron filling stick in the middle of bar magnet when it is brought near them. (v) bar magnet a...

CLASS - 6 SCIENCE CHAPTER - 11 LIGHT,SHADOWS AND REFLECTIONS QUESTIONS AND ANSWERS Question no. 1 Rearrange the boxes given below to make a sentence that help us understand Opaque objects. OWS ,  AKE , OPAQ , UE O , BJECT , T SM , SHAD Answer no. 1 OPAQ UE O BJEC TS M AKE SHAD OWS   OPAQUE OBJECTS MAKES SHADOW Question no. 2 Classify the object or materials given below as opaque, transparent or translucent and Luminous or non luminous: Answer no. 2 Opaque materials - a piece of Rock, a sheet of aluminium, CD, smoke, iron, an umbrella, a wall. Transparent materials - air, water, a sheet of plane, glass. Translucent materials - A sheet of polythene, fog, a sheet of cellophane. Luminous material - a lighting fluorescent tube, the flame of a gas burner, a lighted torch, Firefly stove, Sun, moon. Question no. 3 Can you think of creating a shape that would give a circular Shadow if held in one way and a rectangular Shadow if held in another wa...

CLASS - 6 SCIENCE CHAPTER - 12 ELECTRICITY AND CIRCUITS QUESTIONS AND ANSWERS Question no. 1 Fill in the blanks: (a) a device that is used to break an electric circuit is called __________________. (b) an electric cell has _________________ terminals. Answer no. 1 (a) switch  (b) two Question no. 2 Mark true or false for following statements: (a) electric current can flow through metals. (b) instead of metals wires, a jute string can be used to make circuit. (c) electric current can pass through a sheet of thermocol. Answer no. 2 (a) True (b) False  (c) False Question no. 3 Explain why the bulb would not glow in the arrangement shown in fig. 12.13. Answer no. 3 Bulb would not glow in the arrangement because circuit is not completed due to presence of insulator (hand of screwdriver is made of wood) in the circuit. Question no. 4 Complete the drawing shown in fig 12.14 to indicate where the free end of the two wires should be joined to make ...

CLASS - 6 SCIENCE CHAPTER - 10   MOTION AND MEASUREMENT OF DISTANCES QUESTIONS AND ANSWERS Question no. 1 Give two examples each, of Modes of transport used on land, water and air. Answer no. 1 Mode of transport on land - Train,bus Mode of transport on water - Ship,boat Mode of transport in air - Helicopter,aeroplane Question no. 2 Fill in the blanks: (i) One metre is __________ cm. (ii) Five kilometre is __________ m. (iii) Motion of a child on a swing is ____________________. (iv) Motion of the needle of a sewing machine is _______________. (v) Motion of wheel of a bicycle is ______________________. Answer no. 2 (i) 100 (ii) 5000 (iii) Periodic (iv) Periodic (v) Circular Question no. 3 Why can a pace or a footstep not be used as a standard unit of length? Answer no. 3 Pace or a footstep cannot be used as a standard unit of length because it differs from person to person. Question no. 4 Arrange the following lengths in their increasing ...

CLASS - 6 SCIENCE  CHAPTER - 9 THE LIVING ORGANISM AND THEIR SURROUNDINGS QUESTIONS AND ANSWERS Question no. 1 What is a habitat? Answer no. 1 The surroundings where organisms live is called a habitat. The organism depends for their food water their shelter and the other requirement on their habitat. In other word Habitat means dwelling place  (a home). Several kinds of plants and animals me share the same habitat. Question no. 2 How are cactus adapted to survive in a desert? Answer no. 2 The cactus has the following adaption to survive in a desert. 1 - It has long roots which go deep inside the soil for absorbing water. 2 - Its leaves are present in the form of spines to prevent water loss through the transpiration. 3 - Its stem is covered with a thick waxy layer to retain water. Question no. 3 Fill up the blanks (a) The presence of specific features, which enable a plant or an animal to live in a particular habitat, is called ___________________. (...

CLASS - 6 SCIENCE  CHAPTER - 8 BODY MOVEMENTS QUESTION AND ANSWERS Question no. 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 ______________________ joint. (d) The contraction of the _____________ pulls the bones during movement. Answer no. 1 (a) Movement (b) Skeleton (c) Hinge (d) Muscles Question no. 2 Indicate true (T) and false (F) among the following sentences. (a) The movement and locomotion of all animals is exactly the same.  (b) The cartilages are harder than bones.  (c) The finger bones do not have joints.  (d) The fore arm has two bones.  (e) Cockroaches have an outer skeleton. Answer no. 2 (a) False (b) False (c) False (d) True (e) True Question no. 3 3.Match the items in Column I with one or more items of Column II.  Answer no. 3  Column I...

CLASS - 6 SCIENCE CHAPTER - 7 GETTING TO KNOW PLANTS  QUESTIONS AND ANSWERS Question no. 1 Correct the following statements and rewrite them in your notebook. (a) stem absorb water and Minerals from the soil. (b) leaves hold the plant upright. (c) roots conduct water to the leaves. (d) the number of petals and sepals of a flower is always equal. (e) if the sepals of a flower are joined together, it petals are also join together. (f)  if the Petals of a flower are joined together, then the pistil is joined to the petal. Answer no. 1 (a) roots absorb water and Minerals from the soil. (b) stems hold the plant upright. (c) stems conduct water to the leaves. (d) the number of petals and stamens in a flower may not be always equal. (e) if the petals of a flower are joined together, its petals are separate. (f) if the petals of a flower are joined together, then the pistil may or may not be joined to the petal. Question no. 3 Can you find a plant in yo...

CLASS - 6 SCIENCE CHAPTER - 5 SEPARATION OF SUBSTANCES QUESTIONS AND ANSWERS Question no. 1 Why do we need to separate different components of mixture? Give two examples. Answer No. 1 When two or more substances are are mixed together they form a mixture. Components of mixture should be separated to remove non useful components coma to remove impurities are harmful components. Examples - 1 - to separate stones from rice.                       2- churning milk to obtain butter. Question no. 2 What is is winnowing ? Where is it used? Answer no. 2 Winnowing is a method of separating of components of a mixture. Winnowing is used to separate heavier and lighter components of a mixture by wind or by blowing air. Question no. 3   3.How will you separate husk or dirt particles from a given sample of pulses before cooking. Answer no. 3 Standard particles are separated from pulses by the method...

CLASS - 6 SCIENCE  CHAPTER - 6 CHANGES AROUND US QUESTIONS AND ANSWERS Question no. 1 To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change is reversed? Answer no. 1 Yes the change in the length of the dress can be reversed. The length of the dress can be increased by unfolding it. Hence shortening the length of dress can be reversed. Question no. 2 You accidentally dropped your favourite toy and broke. This is a change you did not want. Can this change be reversed? Answer no. 2 The broken toy cannot get back to its original shape. Hence change cannot be reversed. Question no. 3 Some changes are listed in the following table. For each change,write in the blank column, whether the change can be reversed or not. S. no.     Change            Can be reversed                             ...

CLASS 6 SCIENCE CHAPTER - 4 SORTING MATERIALS INTO GROUPS EXERCISES QUESTION NO. 1 Name five objects which can be made from by wood. ANSWER NO. 1 Chain Doors Box Desk Table QUESTION NO. 2 Select those objects from the following which shine : Glass bowl, plastic toy, steel spoon, cotton shirt ANSWER NO. 2 Glass bowl and steel spoon QUESTION NO. 3 Match the objects given below with the materials from which they could be made. Remember,an object could be made from more than one material and a given material could be used for making many objects.  OBJECTS                         MATERIAL Book                                 Glass Tumbler                          Wood Chair          ...

CLASS - 6 SCIENCE CHAPTER - 3  FIBRE TO FABRIC QUESTIONS AND ANSWERS Question No. 1 Classify the following fibres as natural or synthetic: nylon,wool,cotton,silk,polyester,jute Answer No. 1 Natural Fibres - wool,cotton,silk,jute Synthetic - nylon,polyester Question No. 2 State whether the following statements are true or false: (a) Yarn is made from fibres. (b) Spinning is a process of making fibres. (c) Jute is the outer covering of coconut. (d) The process of removing seeds from cotton is called ginning. (e) Weaving of yarn makes a piece of fabric. (f) Silk fibre is obtained from the stem of a plant. (g) Polyester is a natural fibre. Answer No. 2 (a) True (b) False (c) False (d) True (e) True (f) False (g) False Question No. 3 Fill in the blanks. (a) Plant fibres are obtained from ________________ and ____________________. (b) Animals fibres are ________________ and ________________. Answer No. 3 (...