Sone hardeo international School

  Answer the following questions:  1. Name the various nutrients of the food. Ans: The various nutrients of food are carbohydrates, fats, proteins, vitamins and minerals . 2. Why are vitamins called protective foods? Ans: Vitamins are called as protective foods because vitamins protect our body from from diseases and keep our body healthy . 3. Name the different types of vitamins. Ans: Different kinds of vitamins are  Vitamin A,  Citamin B (B-complex), Vitamin C , Vitamin D , Vitamin E, Vitamin K . 4. What are functions of different minerals? Ans: Different minerals have different functions such as Iron builds red blood cell (RBC) Iodine is essential for the proper functioning of the thyroid gland which controls the growth of the body . Calcium makes the teeth and bones strong  5. What is roughage? Why is it important? Ans: Roughage keeps the food and waste matter (faeces) moving along the intestines and helps to prevent constipation . 6. Why is water necessary ...

 Answer the following questions : 1. What is sanitation? Ans : Sanitation refers to public health condition related to clean drinking water and adequate treatment and disposal of human excreta and sewage  2. Why should drinking water be purified? Ans: Water may contains germs which make us sick . This water may cause of many diseases like typhoid, cholera, jaundice etc . Therefore it is necessary to purify the drinking water . 3. What is canning? Ans: Canning is a method of food preservation by which food can be preserved in air tight containers where moisture and air can not enter into it .They also keep away insects, rodents etc from preserved food.  4. What are drying and dehydrating methods? Ans: Drying and dehydration are food preservative systems . Where the food can be preserved for many days as the water  content is removed from the food completely . Peas , pulses etc are preserved by this method . 5. What do you mean by sweetening? Ans: Sweetening is also a ...

 A. Which one is correct ? 1. Yellow substance on teeth is called- a. dentine   b. tar tar   c. plaque Ans: b 2. We must floss your teeth  a. every month b. everyday c. every week Ans: b 3. Sweets and chocolates ____ our teeth . a. spoil b. perfect c. clean Ans: a 4. Tooth decay causes a. toothache b. holes in teeth c. both Ans: c 5. Molars are also called a. tearing teeth b. cutting teeth c. grinding teeth Ans: c 6. The centre of each tooth is called  a. dentine b. pulp c. crown Ans: b B. Fill in the blanks : 1. We must brush your teeth at least twice a day . 2. Milk has calcium   that makes our teeth strong. 3. We must wash or floss your teeth everyday.  4. Microbes are very small living things. 5. Microbes that cause diseases are called germs . C. Write T' for true or 'F' for false statements :  1. We all are born without teeth. True 2. Every adult has a set of 36 teeth.  False 3. There are three kinds of permanent teeth....

  A. Which one is correct ? 1. Accidents can happen at any _______ a. place b. time c. both Ans: C  2. We need to take extra care in the ____ a. field b. school c. kitchen  Ans: C 3. ________ is necessary for any thing to burn . a. nitrogen  b. oxygen c. carbon di oxide Ans: b B. Fill in the blanks : 1. Accidents can happen at any place and time . 2.  Carelessness lea ds to accidents. 3. In case of fire breaks due to an electric fault do not try to extinguish it with water . 4. In case of big fires, call for a fire brigade . 5. A dog bite can cause a disease called rabies . 6. Cross the road using a subway or at the zebra crossing . 7. Throw banana peels and other wastes in the dustbin to avoid slipping . 8. We can throw sand or mud on petrol and kotodin fire . C. Write 'T' for true or 'F' for false : 1. Carelessness leads to accidents. True 2. We need to take extra care in the kitchen. True 3. Keep to the right while walking on the road. False 4. Never use...

Very Short Answer Type Questions  1. Name the animal from which wool is most commonly obtained  Ans: The animal is sheep from which will is most commonly obtained . 2. Name one fibre obtained from the stem of plants. Ans: Jute is a fibre obtained from the stem of plants  3. Name any two states in India where jute is mainly grown.  Ans: In india, jute is mainly grown in west bengal , Bihar and Assam . 4. Name two items that are made from coconut fibres,  Ans: Coconut ropes and mats are made from coconut fibres . 5. Which of the two are stronger: natural fibres or synthetic fibres ?  Ans: The synthetic fibres are stonger than natural fibre . 6. (a) From which part of the plant cotton fibre is obtained ?  Ans: From the fruits (cotton bolla) of cotton plant, cotton fibre is obtained . (b) From which part of the plant jute fibre is obtained ? Ans: From the stem part of the plant jute fibre is obtained . 7. Name four types of fabrics used by us.  Ans: P...

Very Short Answer Type Questions 1. Name two fibres obtained from animals. Ans: Silk and wool are the two fibres which obtained from animals . 2. Which type of wool is common in Tibet and Ladakh ?  Ans: Yak wool is common in Tibet and Ladakh . 3. Where are Angora goats found in our country ? Ans: Angora goats are found in hilly regions such as Jammu and Kashmir . 4. Which animal produces wool for making fine Pashmina shawls ?  Ans: Kashmiri goat produces wool for making fine pashmina shawls . 5. Where are the wool-yielding animals called llama and alpaca found? Ans: The wool-yielding animals called llama and alpaca found in South America . 6. Name any two breeds of sheep found in India.  Ans: Marwari and Pathan wasi these are two breeds of sheep found in india . 7. State whether sheep are herbivores or carnivores. Ans: Sheep are herbivores because sheep eat only grass and green leafy vegetables . 8. What terms are used for the following processes ?  (a) Removing hair...

 Important question answer from the topic Nervous system  A. Which one is correct ? 1. Our nervous system consists of the brain, the spinal cord and the a. blood vessels b. nerves c. lungs  Ans: c) lungs 2. Our brain needs a constant supply of a. oxygen b. nitrogen c. lungs Ans: a) oxygen 3. When we happen to touch a hot object, the sensory nerve immediately passes a message to the a. brain b. spinal cord c. hands Ans: a) brain 4. ______is the largest organ in our body. a. skin b. nose C. ears Ans: a) skin B. Fill in the blanks : 1. The brain is control centre of the body . 2. The brain has three parts . 3. There are nerve endings on the upper part of the nose . 4. The coloured circle in the eye is the iris . C. Write 'T' for true or 'F' for false : 1. The cerebellum coordinates the actions of the muscles. Ans: True  2. The actions controlled by the spinal cord are called reflex actions.  Ans: True 3. The ears enable us to keep our balance. Ans: True 4. The...