Tsunami means 15. (c) Neutral (b) Switching on / off electric lights It is, therefore, important that we should take necessary precautions to protect ourselves all the time as given below: Question 1. But we should not touch them during thunderstorm. (d) inner core, Question 11. Which is the sure test of charge on a body? What is an electric charge? What is an earthquake? (c), II. 6. What are the natural calamities caused by earthquakes? (b) On the bottom of the building types of charges are gained by rubbing objects. Make your own charge detector. (a) 3.0 (b) Rajasthan All building especially tall building must be equipped with __________. Question 7. The metal columns used during construction, electrical wires and water pipes in the buildings also protect us to an extent. False If two charged objects are brought close to each other then (b) Celsius scale Earthquakes can cause floods, landslides and tsunamis. Lightning occurs due to The uppermost layer of the earth is called __________. 9. How is an earthquake caused? Question 1. Children enjoyed this drill and learned a lot from this. Question 2. 12. It occurred in the Indian ocean on 26th December 2004. Amber is a 17. an electric current NCERT Science Book Class 8 Extra Questions with Answers is the best choice for you to revise all the concepts during board examinations to score well. During earthquake, we should take shelter under a heavy table. Question 1. If travelling in a car or a bus, do not come out and drive slowly to a clear spot. What are seismic waves? 15. lightning conductor Multiple Choice Questions (MCQs) Earthquakes are caused due to the movement of …………. A goal for developing the NGSS was to create a set of research-based, up-to-date K–12 science standards. (a) in the core of earth To protect tall buildings from the damage of lightning, what can be done? How does it occurs? To learn more about the differences between science and astrology, visit Astrology: Is it scientific? 4. tectonic plates Some phenomena we have encountered in this book are that expressive writing improves health, women do not talk more than men, and cell phone usage impairs driving ability. Answer: 6. Waves produced on the Earth’s surface because of tremors. 13. Explain. Electric charges accumulated on the screen of television or computer monitor get discharge through our body. The tremors produce waves on the surface of the earth. 4. Question 8. How many types of charges are gained by rubbing objects? The magnitude of an earthquake is measured ii 15. is the sudden shaking of the Earth. Question 6. Question 5. (a) Earthquakes When they brush one another, or a plate goes under another due to collision (Fig. 17. 2. static An earthquake is a sudden shaking or trembling of the earth. (b) 8.0 Question 10. ScienceFLEX Grades 3-5. You can refer to NCERT Solutions for Class 8 Science Chapter 15 Some Natural Phenomena to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. In 2012, an old grave was discovered under a parking lot in Leicester, England, and five months later, DNA tests confirmed that the bones buried there belonged to Richard III. Concise Mathematics Class 10 ICSE Solutions 2020, MCQ Questions for Class 8 Science with Answers, Maintenance Of Personal And Public Hygiene, Concise Mathematics Class 10 ICSE Solutions. (b) rubber Do it yourself at home. Supplementary science modules that integrate hands-on activities with authentic reading instruction. 1. What is a lightning conductor? Question 6. 4. 20. Question 1. Keeping a disaster kit ready in the time of need. True or False (d) none of these, Question 17. No open place is safe. (c) earthquake under sea The point from where the shock waves of an earthquake originate is called Answer: (c) Amber Question 14. Would the lightning conductor be still effective? Science Bowl PHYSICS Physics - 3 PHYS-91; Multiple Choice: A pendulum which is suspended from the ceiling of a railroad car is observed to hang at an angle of 10 degrees to the right of vertical. (b) (c) in the middle of earth Question 1. …………. 8. (c) Volcanic eruption We have provided Some Natural Phenomena Class 8 Science MCQs Questions with Answers to help students understand the concept very well. False At the time of thunder negative charges are accumulated near the clouds and positive charges near the ground. Choose the correct option in the following questions: Question 1. We should stay away from poles or other metal objects. (a) equal and like charges Here CBSETuts.com has provided CBSE Chapter Wise Important Questions for Class 10 Social Science 2020 Board Exam Pdf free download was designed by expert teachers from the latest … 13. The shaking and trembling of earth is called Each fragment is called a plate (Fig. True 15. In the 17th century, the new method of modern science rejected the Aristotelian approach. Standards set the expectations for what students should know and be able to do. (a) Uri (Kashmir) When two bodies are rubbed against each other, they acquire (c) Install many TV antennas 3. The strips of an electroscope diverge when a charged body is brought in contact with the metal clip. Question 7. Question 3. It sought explanations of natural phenomena in terms of physical laws that were the same for all visible things and that did not require the existence of any fixed natural categories or divine cosmic order. An earthquake is a sudden shaking of the earth. (a) Lightning (d) Richter scale, Question 6. Answer: 19. (c) 3. Question 2. Lightning conductor. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. Answer: (d) Lightning, Question 18. (d) none of these, Question 5. Answer: 14. Lightning is accompanied by large amounts of electric charges and very high temperatures. Name the two types of charges. 7. Answer: What is static electricity? (a) attract each other Vetted by curriculum experts and differentiated by grade level, it mirrors the interests of students and helps them make relevant, lasting connections between science, the classroom, and their everyday lives. (a) seismic scale CPO Science Grades 6-12. (c) Decibel scale (a) North-East India PhET sims are based on extensive education and engage students through an intuitive, game-like environment where students learn through exploration and discovery. The waves produced on the earth’s surface is called The electrical charges can be transferred from a __________ object to another through a __________ conductor. Answer: What are weak zones called? (f) This site is a curated collection of science phenomena for the NGSS, along with phenomenon based learning resources and help for how to use phenomenon to drive student questions in the classroom centered around 3 dimensional teaching and learning. True …………. ask questions. This is due to the two sides of paper strips get the same type of charge from the charged body and they repel each other. 11. The strips will collapse due to discharging of the charges through our hand. (b) Charge meter Explain. Lightning rod is a device used to secure tall buildings from the effect of lightning. (c) Using a mobile phone Seismograph is the instrument that records …………. (a) metal If travelling by car or by bus, it is safe to stay inside with windows and doors of the vehicle shut. (b) Take shelter under short trees Answer: 8. The crust and mantle is broken into pieces known as __________ 5. When the magnitude of the accumulated charges becomes very large, the air which is normally a poor conductor of electricity, is no longer able to resist their flow. 3. False If a charged plastic straw is brought near another uncharged plastic straw, what will happen? (d) No, it will not be effective. 14. The weak zones are also known as seismic or fault zones. Innovative and hands-on core and supplemental science curriculum. The electrical charges generated by rubbing two object is__________ electricity. (c) focal depth Question 1. Weather.” is the latest installation to take the Michigan Science Center (MiSCi) by storm.The exhibit, which is now open to the public, will allow visitors to experience some of Earth’s weather patterns, changing seasons and other wild phenomena. (d) Earthing, Question 14. Question 3. (d) Radio wave, Question 10. If we are in bed, we should protect our head with a pillow. (c) Insulator Lightning conductor is a device used to protect buildings from the effect of lightning. (c) 5.0 Engaging, interactive animations and models leap off the pages of science investigations. Answer: Question 10. Answer: (c) Record lightening Answer: Answer: A seismograph records waves. 9. (b) Lightning is caused by the accumulation of charges in the clouds. True Question 3. Seismic or fault zones. 7. 20. (d) electron movement, Question 2. (d) Can be any one, Question 17. Consequently, a very bright spark is produced. Question 4. Answer: 6. (d) volcanic eruption under sea, Question 9. (b) Lightning (c) 2. Ms Neena, Science teacher of class VIII, taught children how to protect themselves and what to do during an earthquake. The NGSS were developed by states to improve science education for all students. (a) to destroy the buildings (d) sugar, Question 11. We can predict an earthquake. Ms Neena, Science teacher of class VIII, taught children how to protect themselves and what to do during an earthquake. (c) both (a) and (b) 9. There is accumulation of positive near the ground also. Earthquake 15.11). Stay calm and do not panic. (d) none of these, Question 20. (b) Install lightning conductors We should not lie on the ground. 9. earthing (a), IV. In which direction does the shock waves produced by an earthquake travel? Question 6. (b) We know that tremors are caused by the disturbance deep down inside the uppermost layer of the earth called crust (Fig. You should see a faint glow. Answer: Modern building technology can make it possible. (d) electron movement, Question 14. (b) volcano (b) to protect the buildings (b) a bad conductor The phenomena and content used in Science Techbook is provided through our dynamic K-12 learning platform, Experience. Richter scale is used to express the …………. How does it work? Question 15. Name other natural calamities except lightning and earthquake. 12. (b) earthquake Activities and Projects A comprehensive database of more than 42 environmental science quizzes online, test your knowledge with environmental science quiz questions. The following safety measures are advisable to be adopted to protect from lightning and thunderstorm: Question 4. False 18. fragmented Answer: Benjamin Franklin showed lightning in __________. False Each fragment of the outermost layer of the earth is called plate. (d) none of these, Question 16. 14. If we are inside the house, we should take care as advised further: In seismic zones it is advisable to make the structure of the buildings simple so that it is ‘Quake Safe’. x) The railroad car is accelerating to the left. Stay away from glass, windows, outside doors and walls. The plastic strips will show repulsion. Where is the lightning rod attached to protect the building from lightning? She even performed an earthquake drill in school for better understanding in children. (a) Not to build tall buildings Science can investigate such phenomena and explanations only if they are thought to be part of the natural world. (c) Richter Scale (b) rain pour 8. Lightning is an __________ on a huge scale. A device used to protect tall buildings from lightning is called metal detector. What safety measures should be taken during lightning and thunderstorm? (a) transferring There are, for instance, beliefs that—by their very nature—cannot be proved or disproved (such as the existence of supernatural powers and beings, or … (b) 1 11. We hope the given NCERT MCQ Questions for Class 8 Science Chapter 15 Some Natural Phenomena with Answers Pdf free download will help you. Answer: (c) resin Fill in the Blanks (a) Richter scale What happens when amber is rubbed with fur? What actually causes lightning? Explain the process of electric discharge. (b) Alloy (a) tsunami If aluminium strips of an electroscope are replaced by plastic strips and a charged body is brought in contact with the metal clip. Charge a refill. (c) both (a) and (b) Observe what happens. 1. Answer: It can occur when electric charges flow from one part of a cloud to another or from a cloud to the ground. (a) epicentre Prepare a brief report on the problems of the earthquake victims. Lightning conductor The waves are recorded by Richter scale. Match the items given in column I suitably with those given in column II. What is static charge? When charges flow, they constitute __________ We know that earthquakes cannot be predicted. (a) Electric discharge (b) iron scale Question 5. (e) (b) outer core It is caused by a disturbance deep inside the earth’s crust. Both on the surface and inside the earth. What causes lightning? (a) a good conductor Answer: Answer: (a) Metal (b) floods Check the below NCERT MCQ Questions for Class 8 Science Chapter 15 Some Natural Phenomena with Answers Pdf free download. 9. 10. The glass rod gets positively charged and silk cloth negatively charged. Choose the correct option. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. Adjust the flow so that it forms a thin stream. The process of transferring charge from a charged body to earth is called Lightning conductor is a device which is used to protect buildings from the danger of lightning. (b) What causes earthquakes? 2. Switch off the tube light so that the room is completely dark. (b) During thunderstorm it is safer to These vigorous movements cause separation of charges. 15.7. Answer: These objects are called charged objects. These are called seismic waves. The huge amount of heat produced makes the air expand very suddenly what causes vibration to occur, resulting in a loud sound called thunder. (a) Kelvin scale When a plastic refill is rubbed with polythene it acquires a small electric charge. (d) eruption of volcano in a sea, Question 9. 10. __________ is an earthquake under sea. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws. Science (from the Latin word scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.. It is caused mostly due to the movement of earth’s plates inside the crust. 12. Question 22. Question 4. (c) (c) (b) Positive A house or a building is a safe place. If air and cloud were good conductors of electricity then charge separation will not take place and hence lightning will not occur. Phenomena. 11. Lightning conductor is used What is earthing? (c) Guwahati (Assam) (d) Odisha, Question 8. This program is designed to give students engaging, realistic experiences that mirror how scientists and engineers actually work. (d) unequal and unlike charges, Question 16. (a) lightning Any conductor can be used to make a lightning conductor. Match the following items given in Column ‘A’ with that in Column ‘B’: Fill in the blanks with the appropriate words: 1. Which is the surest test of charge on a body? To learn more about the natural world and the sorts of questions and phenomena that science can investigate, visit What's natural? Charges from the charge body will be transfer from the metal rod to the plastic strips. It lasts for a very short time. (a) seismic wave (c) Take shelter under tall trees Insulator The tremors produce waves on the surface of the earth. (c) Charging Enquire about the type of help they render to the victims of earthquakes. Lightning is an electric spark, but on a huge scale. What is lightning? The process of transfer of charges from a charged object to the earth is called lightning. (c) electric discharge Answer: Question 11. After more than 500 years, those questions were finally answered. (b) Cyclones 2. As part of the effort, funding opportunities are available in fiscal years FY2021 and FY2022 to provide support for proposals from interdisciplinary teams comprised of mathematical, computational, and biological scientists to develop MODels for Uncovering Rules and Unexpected Phenomena in Biological Systems (MODULUS). One end of the rod is kept out in the air and the other is buried deep in the ground as shown in the figure. 5. It is just like as pieces of papers are attracted by the charged comb. 1. On a dry day why do you get a slight shock on touching the screen of a television or computer monitor (with picture tube)? False (c) 4 When two bodies are rubbed against each other, they acquire __________ and __________ charges. When these charges meet, electric discharge takes place between the ground and clouds. Open a water tap. Answer: It is caused by a disturbance deep inside the earth’s crust. Lightning is also an electric spark, but on a huge scale. Tsunami Tremors on the earth can also be caused when a volcano erupts, or a meteor hits the earth, or an underground nuclear explosion is carried out. What are seismic waves? How does lightning strike? Types of charges gained by rubbing objects are What is the uppermost layer of the earth called? Answer: Answer: (b) rain Write a short report on the activity. (d) All of these, Question 15. Science is defined as “the observation, identification, description, experimental investigation, and theoretical explanation of phenomena.” Science is a method that mankind can use to gain a greater understanding of the natural universe. (d) 4.0, Question 3. Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. What will happen? 20. We cannot predict cyclones. What do you mean by electric discharge? Science can answer questions, but science is also about asking them. (a) Righter Scale Which instrument is used to measure earthquake? (d) All of these, Question 7. (a) 3 Charge a balloon. (b) Plastic (d) none of these, Question 2. (c) earthing 1. Important Questions for Class 10 Social Science CBSE Chapter Wise 2020. Question 3. Stay inside until shaking stops and it is safe to go outside. 3. Caution: do not touch the metal parts of the tube or the wires connecting the tube with the mains. (c) earthquake under the sea Lightning is&an electric spark on huge scale. (d) Insulation, Question 12. How are most earthquakes caused? (b) they will repel each other. (b) longitudinal wave (a) 2 Question 1. Like charges repel each other while unlike charges attract each other. What is lightning? 12. Answer: This can occurs between two or more clouds, or between clouds and the earth. (d) Anywhere can be installed, Question 15. By a process, the positive charges collect near the upper edges of the clouds and the negative charges accumulate near the lower 1 edges. Answer: Answer: Students can practice the NCERT MCQ Questions for Class 7 Science Chapter 1 Nutrition in Plants with Answers Pdf free download is available here. 9. Question 11. Revise all the concepts easily by taking help from the MCQ Questions for Class 7 Science with Answers are prepared … Tsunami means (c) earthquake Answer: What happens when a glass rod and silk cloth are rubbed with each other? 8. During the development of a thunderstorm, the air currents move upward while the water droplets move downward. Answer: 4. A device used to test whether an object is carrying charge or not is called ______. (c) In the middle of the building 4. Amplify Science is a phenomena-based science curriculum for grades K-8. Question 1. Answer: (d) large scale, Question 3. A major earthquake occurred on 26th January 2001 in which part of India? (d) What values of Ms Neena is shown here? What will happen to the strips if we gently touch the metal clip with hands? Winds, storms and cyclones. 14. crust (a) What to do during an earthquake if you are stuck indoor? Finally negative and positive charges meet, producing streaks of bright light and sound called lightning and thunderstorm respectively. Match the following 17. 14. Question 18. 8. The outer layer of the earth is __________ __________ can be charged with static electricity. Answer: For more information on these topics, visit: I. What are the two natural calamities? Which kind of material is used to transfer charges from one body to another? Since some buildings may catch fire, it is necessary that all buildings, especially tall buildings, have fire fighting equipment in working order. (c) (b) In highly seismic areas, the use of mud or timber is better than using heavy construction materials. (d) a straight path, Question 10. 13. If we are at outdoors, we should find a clear spot, away from buildings, trees and overhead power lines and drop to the ground. (b) Mumbai (Maharastra) Biology is the scientific study of life. (c) the easiest path (b) Electric charging (b) A lightning conductor is fixed in the bottom of the building. Bring it near the water stream. The epicentre of an earthquake is ANSWER: THE PRINTING PRESS GENR-91; Short Answer: What is the name for the new technology whereby a glass fiber carries as much information as hundreds of copper wires? (a) earthquake We observe that water stream is attracted towards the charged refill. This process is called electrical discharge. Question 6. (d) Record temperature, Answer: (b) Record vibrations of earthquake, Question 25. Find out if there is an organisation in your area which provides relief to those suffering from natural disaster. 10. Question 9. Some Natural Phenomena Class 8 Extra Questions Value-Based Questions. Major earthquakes are less likely to occur in The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. When and where a major tsunami took place in India? The power of an earthquake is expressed in terms of magnitude on a scale called What is a plate? 2. (d) earthquake, Question 4. (j) It is a convention to call the charge acquired by a glass rod when it is rubbed with silk as __________ Mention the interactions of two types of charges. Question 5. (c) no interaction takes place 6. What is an earthquake? A phenomenon (plural, phenomena) is a general result that has been observed reliably in systematic empirical research.In essence, it is an established answer to a research question. Question 17. (b) On the top of the building (a) In the bottom of the building (b) lightning (b) Processing (a) Record strength of wind The ILS-Science are designed to help students acquire a deep understanding of core science and engineering content and ideas as well as experience applying that knowledge in any context. (a) Carry an open umbrella How are these waves recorded? The Center for Consciousness Studies at the University of Arizona is a unique institution whose aim is to bring together the perspectives of philosophy, the cognitive sciences, neuroscience, the social sciences, medicine, and the physical sciences, the arts and humanities, to move toward an integrated understanding of human consciousness. (c) unequal and like charges 19. lightning This activity should be performed at night. 2. 3. Take a paper strip roughly 10 cm x 3 cm. 8. During lightning actually _____________ takes place Lightning strikes. Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. The outermost layer of the earth is called 1752, III. 7. thunder 12. (c) In the middle of the building It develops the capacity to attract light objects. Which of the following is not likely to cause tsunami? Answer: Bring a charged body near it. A metallic rod, taller than the building, is installed in the walls of the buildings during its construction. (g) Answer: Question 2. (d) 1, Question 13. In this process, a large amount of energy is released. (d) a straight path, Question 8. __________ is the sudden shaking and trembling of the earth. (a) mantle The outermost layer of the earth is not fragmented. (a) The following must be done if someone had stuck indoor: (b) Earthquakes are usually caused when rock underground suddenly breaks along a fault. (a) Repulsion Answer: (d) Earthing, Question 24. (d) Chargoscope, Question 18. Answer: Question 8. Carrying an umbrella is not at all a good idea during thunderstorms. These plates are in continual motion. (a) Using Telephone having cord (c) oscillation motion 5. 1. (b) thunder (b) on the surface of earth Since lightning conductor was not connected properly to the earth, therefore, the charge will not pass through to the earth. Lightning always follows (d) Insulation, Question 7. 11. Metal conductor. 4. An earthquake is a sudden shaking of the earth. Lightning is always followed by __________ . (b) The process of transfer of charges from a charged object to the earth is called earthing. (b) 2 Answer: Name the device used to protect buildings from lightning. For all ages Main Level, Allstate Court Included in Museum Entry Accessibility notes 2. 10. Question 20. False (a) floods If we are outside, the following things are important to be kept in mind: Open vehicles, like motorbikes, tractors, construction machinery, fields, tall trees, shelters in parks, elevated places do not protect us from lightning strikes. The electrical charge generated by rubbing two objects is …………. How is it caused? (c) Crust. __________ is an instrument that records seismic waves. (c) 3 (c) they may attract or repel depending on the charges they carry. (b) 18. The process of transfer of charges from a charged object to the earth is called (c) both (a) and (b) Like charges Question 13. 11. equal, unlike 3. (c) Green house effect It is provided in buildings to protect from electrical shocks due to any leakage of electrical current. An earthquake lasts for a long time. 5. The process of electric discharge can occur between Give it a shape as shown in Fig. (d) none of these, Question 19. We should stay away from tall and heavy objects that may fall on us. The electrical charge reproduced by rubbing two objects is called static electricity.
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