Ponder over it: In our India to increase in food grain production Dr M. S. Swaminathan started green revolution In 1963. In agriculture high-yielding wheat seeds were introduced in India. Also, modern farming methods began to be used at large scale in India. So He is known as the 'Father of the Green Revolution in India. Choose the correct option 2. The ________is an edible part of potato plant (a) leaf (b) root (c) sternÖ (d) fruit 3 We can sprout seeds in __________ (a) rocks (b) waterÖ (c) oil (d) none of these 4. The sprouted seeds contain more (a) carbohydrates (b) fats (c) vitamins Ö (d) water 5. The edible part of the apple plant is ___ (a) leaf (b) root (c)Stem (d) fruit Ö 6. we eat root of _______ (a) mustard (b) rajma (c) chili (d) radishÖ 7. The colour of the structures grown out from the sprouted seeds is (a) black (b) whiteÖ (c) red (d) green Fill in the blanks: 1. We get sugar from _Sugarcane________ 2. We get milk from __Cow ____ and ___buffalo______. 3. Honeybees store honey in their ___ honey stomach _________. 4. _Rice __ and ___water___are two ingredients of boiled rice. 5. Animals that eat both plant products and flesh of other animals are called _Omnivores___ 6. Bacteria and fungi are called ____ decompose ____. 7. We should not ___waste_ food in any way. 8. Honeybees are kept in __ beehive ___ for rearing. Very Short Answer Questions: 1. What are the animals that eat only plants and plant products called? Ans: Herbivores 2. Name four food items we get from animals. Ans: Egg, Meat, milk, Ghee 3. Name two edible stems. Ans: Potato , sugarcane 4. What are the materials needed to prepare food items called? Ans: Ingredients 5. What is the rearing of honeybees on a large scale called? Ans: apiculture 6. Name two plants whose flowers are eaten as vegetable. Ans: Cauliflower, Braccoli Short Answer Questions: 1. Why do we need food? Ans: We need food (i) to get energy (ii) grow and replace worn out cell (iii) protect body from diseases 2. What are edible parts? Give name of one. Ans: Part of plants that are eaten by humans is called edible parts. Wheat, pea and rice are plant whose edible part is seed 3. Honeybees work hard to collect nectar from flowers. (a) Where is this nectar stored? (b) What value do you learn from honeybees? Ans (a) bee hive (bee stomach) (b) Hard work is key of success. 4. How can food problem be solved? Give two ways. Ans: Food problems be solved by (i) Avoid wastage of food (ii) Using modern technology and best practices in agriculture 5. How are scavengers and decomposers useful to us ? Ans: scavengers and decomposers feed on dead plants and animal. In this way they decompose waste and keep our environment clean and enrich nutrients in soil. 6. What Is food chain? Give one example. Ans: One who eats what in the environment is called food chain. Eg. Grass -> Zebra- >Lion F. Long Answer questions: 1. How will you sprout seeds? Ans: At first wash the seeds in water, drain the water. Keep seeds in bowl and cover it with a wet cloth and leave them for another day. The next day, you will see the seeds have sprouted. 2. Distinguish between (a) herbivores and carnivores (b) scavengers and decomposers Ans: (a) Animals which eat only plants or plant products are called herbivores eg cow, goat. Animals which eat flesh of other animals are called carnivores eg lion, Tiger. (b) An animal that feeds on dead organisms or by hunting live prey is called scavengers. Eg. Vultures, hyenas, and wolves . They help break down or reduce organic material into smaller pieces. These smaller pieces are then eaten by other organism called decomposers eg, earthworm, fungi, bacteria. HOTS (Higher Order Thinking Skills) questions: 1.Your mother makes food In the kitchen. Is she a 'producer'? Why/Why not? Ans: No. My mother is not a producer as she uses ingredients obtain from plants Solve the following crossword puzzle: Across: 1. animals that eat both plants and flesh of other animals Ans: Omnivores 2. Rearing of honeybees on a large scale is called Ans: Apiculture Down 3. the materials needed to prepare food items Ans: ingredients 4. a tasty and nutritious food item we get from honeybees Ans: Honey 5. the parts of the plant which can be eaten are called parts Ans: edible part
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[1] Fill in the blanks :- [Practice Questions For Chapter: Air around Us ]
1. Air occupies _________________________. 2. Harmful gases and smoke in the air causes _________________________. 3. The _______________________ and ______________________ within the nasal passage prevents entry of dust particles into our respiratory system. 4. Air helps in _________________________ of sound. 6. Air is really not one substance but a __________________. 7. The component of air that supports burning is called ________________. 8. The aquatic animals use dissolved Oxygen in water for respiration, this is possible because Oxygen ________________ in water. 9. Nitrogen of the air is used on a large scale to manufacture ________________. 10. ________________ is the place in nature for gaseous exchange. [2] Choose the correct answer :- 1. The height of the atmosphere is (120 km/240km) 2. The volume of oxygen (increases/decreases) with increase in altitudes. 3. (Carbondioxide/Oxygen) is taken in by the plants for photosynthesis. 4. Air contain approximately (78 percent/80 percent) of Nitrogen. [3] II. True or False statements : 1. Air is a compound but not an element. 2. Air is an opaque material. 3. Air contains water vapour. 4. The major part of air is Nitrogen. 5. Plants produce Oxygen through photosynthesis. [4] Name the following :- 1. The two scientists who proved air is a mixture of gases : 2. The lightest gas in the air. 3. The gas essential for combustion and respiration. 4. The substance in presence of which photosynthesis takes place : [5] Define the following :- (a) Atmosphere (b) Respiration Answer these Questions 1. How do earthworms increase fertility of soil? 2. Rag pickers always suffer from diseases why? 3. Why does composting of leaves better than burning them? 4. Why should plastic food containers be avoided? 5. Why we should not throw away any things that can be recycled? 6. Why recycled plastic are not recommended for storing food in? 8. What is waste management and why it is so important? 9. Which garden worm generally used for Vermi composting. 10. Why worm box aerated in the process of vermi composting? 11. Fill in the blanks: a ._______ is generated in homes, industries, agricultural fields and in other human activities. This is called _______. b. Sewage is a liquid waste which causes ______ and ____ pollution. c. Wastewater is treated in _______ treatment plant. d. By-products of wastewater treatment are ______ and _______. e. ________ of water can be removed by boiling it or treating it with washing soda. f. Cleaning of waste water is commonly known as ________. Ans: a. waste water sewage. b. water, soil. c. sewage. d. sludge, biogas. e. hardness. f. sewage treatment. Related Post Class 6th Chapter-Waste (Garbage In, Garbage Out )...6th Science View Class VI LESSON: ELECTRICITY AND CIRCUIT MCQ’S
Choose the correct answer from the bracket. 1. In electric bells electric energy transform in to ____________energy. (a)Mechanical energy (b) Magnetic energy (c) Sound energy (d) Light energy 2. ----------- is the positive terminal of an electric cell. (a) Metal disc (b) Metal case (c) Metal cap (d) Metal base 3.The tiny coiled metal wire present inside the bulb is called____________. (a) Element (b) Conductor (c) Filament (d) None of these 4. A combination of two or more electric cells is called___________. (a) Electric circuit (b) Battery (c) Terminals (d) None of these 5. An electric bulb has ____________terminals. (a) 3 (b) 4 (c) 1 (d) 2 6 ----------- is an electric device which easily closes or opens an electric circuit. (a) Filament (b) Electric bulb (c) Electric switch (d) Electric cell 7. A material which does not allow the electricity to pass through it is___________. (a) Conductor (b) Electric cell (c) Insulator (d) None of these. 8. Non metals like __________and __________are conductors of electricity. (a)Wood and paper (b) Graphite and gas carbon (c) Glass and rubber (d) None of theses 9. A material which allows the electricity to pass through it is ________. (a) conductor (b) Insulator (c) Transistor (d) None of these 10. Electric energy is produced from the____________ within the cell. (a) Chemicals (b) Metals (c) Terminals (d) None of these ANSWER KEY FOR ELECTRICITY & CIRCUITS 1)B 2)C 3)C 4)B 5)D 6)C 7)C 8)B 9)A 10)A Visit given links for further study:Solved Questions 1 to 10 visit link: View/Download Solved Questions 11 to 21 visit link: View/Download 6th Electricity and Circuit CBSE Test paper-1 Download File 6th Electricity and Circuit CBSE Test paper-2 Download File 1. Describe at least three rules of measuring length correctly.
Ans: a. The scale that you are using to measure the object must be greater than the length of the object. b. The eye should be placed just above the points that you are reading otherwise there will be error due to parallax. c. If the zero mark of the scale is damaged or edge of scale is not smooth, then start measuring from another mark. 2. Name two devices used to measure length. Ans: The two devices that can be used to measure length are:- Metre scale ad Screw gauge. 3. Describe the correct method of measurement of length. Ans: (i) we must choose a suitable device for measuring the length of an object, like measuring scale (ii) we should place the scale in contact with an object along its length and align the zero mark of the scale with the starting position of the object. (iii) While taking the reading, eye must be placed vertically above the point where the measurements have to be taken; otherwise there will be an error in the reading which is taken due to parallex. (iv) if the zero mark on the scale is damaged, then start the measurement from another mark. 4. Circle odd one (a)Table; fan; falling stone; Parked car (b)Bee ; butterfly; Grazing Cow; Sleepy Donkey (c)Pendulum; Earth revolving around the Sun; Moon revolving around the earth; Bee revolving on flowers (d)Moving fan; merry go round; A bus moving on road; a stone moving along circular track Ans: (a) falling stone (b) Sleepy Donkey (c) Bee revolving on flowers (d) A bus moving on road 5.Fill in the blanks 1.One meter is --------------cm 2.one centimeter is -----------------mm 3. Four km is ---------m 4. The motion of moving bicycle is ---------------- 5. The motion of drill machine is ---------- 6. Motion of child on swing ------------- 7. The motion of a top is ---------- Ans: 1. 100 2. 10 3. 4000 4. Rectilinear 5. rotatory 6. oscillatory 7. rotatory 6. Say true or false (a)Rectilinear and curvilinear cannot happen at the same time (b)Rupa can move in rectilinear and rotationary motion at the same time (c)A child on swing has only circular motion (d) Periodic motion is always rectilinear (e) A foot step is used as a standard unit of length. Ans: (a)False (b)True (c) False (d) False (e)False Hots questions: 1. Can an object be in motion and rest simultaneously for different observer? Give an example and consequence? Ans: Yes. A person driving a car is in rest with respect to other person in car but in motion with respect to a person standing road side. Tate of motion and rest depend on the observer or a fix point called reference point. 2. Can a body be in translational and rotational motion? Give some examples Ans: yes, combination of translation and rotation is rolling motion like the motion of the wheel , the motion of the earth, drilling. 3. Why do we need standard unit of measurements for a quantity? Ans: The unit used like hand span ,foot, cubit differ from person to person or even in different countries so for a uniform measurement we need standard unit of measurements. 4. Is it correct to say all periodic motion are oscillatory motion and all oscillatory motion are periodic. Give reason for answer? Ans: In oscillatory motion body repeat its action in equal interval of time so, all periodic motion are oscillatory motion and vice versa. For example motion of swing, pendulum, motion of earth on its axis. Post related to this chapter: Short Questions and Solution : Motion and Measurement of Distances Long Questions and Solution : Motion and Measurement of Distances VI 6th Science Assignments:: CH-6 Measurement and Motion |
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