Science Class 6 English

  CBSE Class–VI Subject Science Revision Notes CHAPTER – 1 Food: Where Does it Come From? Food: Nutritious substance that people or animals eat or drink, or that plants absorb. In order to maintain life and growth. food is essential for both lants and animals.  USES OF FOOD IN OUR BODY For energy for growth for body functions for wounds healing for good health PLANT SOURCE OF FOOD (A) parts of the plants as a source of food plant roots used as food.Ex. Carrot,Turnip,Radish,Beetroot. Plant stems used as food : Ex. Potato, Coriander and sugarcane. plant leaves use as food : Ex. spinach, cabbage, onion. flowers from plant used as food : Ex. Rose, Cauliflower and Bauhinia(kachnar) Fruits on plant used as food :  pulpy fruits: grapes, banana,apple Nuts and dry fruits : almond, currant ( kismis ) Fruits used as vegetable : Brinjal,tomato,gourd,beans    6. Seeds used as food :  Cereals(grains)and seeds : addy(rice),maize(corn),wheat pulses(dal) : Gram(chana),green...

  CBSE Class–VI Subject Science NCERT Solutions (CHAPTER-01) FOOD: WHERE DOES IT COME FROM? Question 1.   Do you find that all living beings need the same kind of food? Answer:  No, all living beings do not need the same kind of food. We know that different organisms eat different kind of food. This is because of the difference in their structure, requirements, habitats etc., Question 2. Name five plants and their parts that we eat. Answer: (a) Apple tree Fruit (b) Wheat plant Seed (c) Potato plant Stem (d) Beetroot plant Root (e) Spinach Leaves Question 3. Match the items given in column A with that in column B. Column A Column B Milk, curd, paneer, ghee Eat other animals Spinach, cauliflower, carrot Eat plants and plant products. Lion and tiger Are vegetables Herbivores Are all animal products. Answer: Column A Column B Milk, curd, paneer, ghee Are all animal products. Spinach, cauliflower, carrot Are vegetables Lion and tiger Eat other animals Herbivores Eat ...

  CBSE Worksheet-01 Class – VI Science (Food: Where Does It Come From?) Green plants prepare their own food, hence they are called Autotrophs Parasites Heterotrophs Decomposers Pulses are rich source of Fibre Minerals Roughages Proteins Spices provide Energy Flavour Vitamins Proteins An animal that eats other animals is called a Producer Carnivore Omnivore Herbivore Match the columns Column A Column B a. Drinking milk i. Are animal products. b. Vegetable, fruits ii. Is good for health. c. Carrot, tomato, potato iii. Are rich in minerals and vitamins. d. Egg, meat, paneer iv. Are vegetables. e. Wheat, gram, rice v. Are plant products. Fill in the blanks. Tiger is a ----------- because it eats only flesh of other animals. Main supply of eggs comes from---------- and ------------. We are ----------- because we eat both plant and animal products. Food is needed by living organisms for -----------, ------------ and protection. We get sugar from--------------. What are milch animals? Why...

  CBSE Class–VI Subject Science Revision Notes CHAPTER – 2 Components of Food Nutrients:  Food substances that provide nourishemt to the body. The major nutrients in our food are carbohydrates, proteins, fats, vitamins and minerals. In addition, food also contains dietary fibres and water. Carbohydrates and fats mainly provide energy to our body. Carbohydrates : cellulose, starch and sugar. Carbohydrates:  These are energy-giving compounds. There may be simple carbohydrates or complex carbohydrates. Sources of fats : animal fats and vegetable fats. Fats:  These are very high energy-giving compounds compounds. They produce greater amount of energy than carbohydrates. Carbohydrates and fats are Energy giving food. Minerals:  These are elements required by the body in small amounts. It is essential for growth and development of bones, teeth and red blood cells. Proteins:  These are body-building foods. They help in  growth of the body. Vitamins:  The...

  CBSE Class–VI Subject Science NCERT Solutions (CHAPTER-02) COMPONENTS OF FOOD Question 1. Name the major nutrients in our food. Answer:  The major nutrients in our food are carbohydrates, proteins, fats, vitamins, minerals, roughage and water are essential nutrients for our body. Question 2. Name the following: (a)The nutrients which mainly give energy to our body. (b)The nutrients that are needed for the growth and maintenance of our body. (c) A vitamin required for maintaining good eyesight. (d) A mineral that is required for keeping our bones healthy. Answer:   (a) Carbohydrates and fats. (b) Proteins  (c) Vitamin A (d) Calcium Question 3. Name two foods each rich in: (a) Fats    (b) Starch    (c) Dietary fibre    (d) Protein Answer:   (a) Butter, Groundnut. (b) Rice, Potato. (c) All grains, Fresh fruits. (d) Milk, Fish. Question 4. Tick (√) the statements that are correct. (a) By eating rice alone...

  CBSE Worksheet-01 Class – VI Science (Components of Food) Night blindness is caused by the deficiency of Vitamin C Vitamin K Vitamin D Vitamin A Weak bones and tooth decay is caused by the deficiency of Carbohydrates Proteins Calcium Vitamin A Iodine solution is used to test Protein Starch Fats Vitamin D Which vitamin is destroyed during heating? Vitamin C Vitamin A Vitamin K Vitamin D Match the followings: Column A Column B a. Vitamin A i. Beri-Beri b. Vitamin C ii. Rickets c. Vitamin D iii. Scurvy d. Vitamin B1 iv. Meat, egg, fish e. Rich in proteins v. Night blindness Fill in the blanks. Lack of vitamins and minerals in our diet causes several ______ diseases. Pulses are rich in ______. Carbohydrates provide ______ to the body. Goitre is caused due to deficiency of ______ in our diet. _______ is called sunshine vitamin. What are the main components of food? Why are fats important for the body? Define balanced diet? Is this same for all persons. Mention the food constituents wh...

  CBSE Class–VI Subject Science Revision Notes CHAPTER – 3 Fibre to Fabric FIBRE :  Fibre is a fine thread-like filament. FABRIC :   woven cloth. Fibres: There are two types of fibres: (a)   Natural Fibres : The fibres which are obtained from plants and animals. Example: cotton, jute, silk and wool. (b)   Synthetic Fibres : are made from chemicals substance.synthetic fibres are manmade fibre. They are also called artificial fobres.. Examples: rayon, nylon, polyester, etc. Fibres from plant sources: Cotton : cotton comes from cotton lant. Both , plant and the fibre are called cotton.cotton is grown in black soil and warm climate. Jute : jute is obtained from stem of jute plant. Hemp  ;- The drug plant. Flax :-  comes from linsee plant used for weaving linen. Rhea or ramie :-  is used for making sails for boat and also parachutes. Coir ;-  is the fibre which comes from coconut palm. PROCESSING OF COTTON FIBRE Ginning :-  Removal of seeds f...

  CBSE Class–VI Subject Science NCERT Solutions (CHAPTER-03) FIBRE TO FABRIC Question 1. Classify the following fibres as neutral or synthetic: Nylon, wool, silk, polyester, jute. Answer: Natural Fibre Synthetic Fibre Wool, Cotton, Silk, Jute Nylon, Polyester Question 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 outer covering of coconut.  (d) The process of removing seed 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. Answer:  (a) T, (b) F, (c) F, (d) T, (e) T, (f) F, (g) F Question 3. Fill in the blanks: (a) Plant fibres are obtained from ------------ and --------------. (b) Animal fibres are ------------- and -----------. Answer:   (a) Plants fibres are obtained from  cotton plants  and  jute plants . (b) Animals fibres are  silk ...

  CBSE Worksheet-01 Class – VI Science (Fibre to fabric) Which one of the following is not a natural fibre? Jute Cotton Nylon Flax Which fibre yielding plant should be grown in a field having black soil and warm climate? Jute Cotton Coconut Wool Select the correct sequence to obtain cloth. Fibre > fabric > yarn Fabric > fibre > yarn Yarn > fabric > fibre Fibre> yarn> fabric Which part of jute plant is used to obtain jute fibre Fruit Flower Seed Stem Match the following: Column A Column B a. Sweater i. Jute b. Dhoti ii. Coir c. Gunny Bag iii. Silk d. Silk Cloth iv. Wool e. Mat v. Cotton Fill the gap with suitable word/words. Fibre obtained from plants and animals are called _________. Wool is obtained form the fleece of _________ and _________. Silk fibre is drawn from _________ of silk worm. The process of making yarn from fibres is called _________. Jute is obtained from the _________ of the jute plant. Differentiate between weaving and knitting. How is jut...

  CBSE Class–VI Subject Science Revision Notes CHAPTER – 4 Sorting Material into Groups Matter :   Anything that occupies space and has mass is called matter. Objects around us are made up of a large variety of materials. Material  : A material is a substance which is used for making things. A given material could be used to make a large number of objects. It is also possible that an object could be made of a single material or of many different types of materials. GENERAL PRPERTIES OF MATRIAL (A) Apearance  :  shine ( luster or luster ) or Roughness ( non- lustrous ) All metals are  lustrous  , some are more and some are less. wood, rubber or a piece of rock is  non-lustrous.       (B) . Hardness  ;   Hard and soft Rocks, iron and many metals are  hard . Hard materials may be :  Brittle  ;- Which break into samller pieces or are powdered when hammered, ex. rock,glass,salt. Malleable...