NCERT Solutions for Class 8 Science Chapter 15- Some Natural Phenomena
NCERT Solutions for Class 8 Science Chapter 15-Some Natural Phenomena cover various concepts. Some of them are lightning, charging by rubbing, types of charges and their interaction, transfer of charge, lightning safety, lightning conductors, the meaning of earthquakes, protection from earthquakes, causes of earthquakes, structure of the earth, and power of the earthquake. Our NCERT Solutions for Chapter 15-Some Natural Phenomena are prepared according to the CBSE Class 8 Science syllabus.
These NCERT Solutions have been prepared by our proficient subject matter experts. They are completely accurate and cover all possible question types important for your CBSE Class 8 Science exams. Our well-structured Solutions for ‘Some Natural Phenomena’ help you master all concepts of the chapter and perform well in your CBSE exams. These solutions will help you learn and revise quickly.
Our NCERT Solutions for Class 8th Science Chapter 15 – Some Natural Phenomena incorporate proven and effective study strategies to make learning a more efficient and less time-consuming process. With detailed explanations, ample amounts of examples and illustrative diagrams, our chapters make learning fun, fascinating and enjoyable. They are just what you need to keep handy while revising before your exams. They keep your concepts clear and scores high.
Important Topics of Class 8 Science Chapter 15
In NCERT Class 8 Science Chapter 15 – Some Natural Phenomena, we will be learning about some natural phenomena like lightning, earthquakes. Some important concepts covered in this chapter have been listed below.
In this segment of NCERT Class 8 Science Chapter 15 – Some Natural Phenomena, you will be reading about the air currents, thunderstorms, water droplets and reasons that are causing separation of charges in clouds and amidst clouds and earth. Here you will be learning the real reason for lightning and how the charges flow in light and sound. You will also be learning how air increases the bad conductors.
- Charging by Rubbing
In this segment of Class 8 Science Some Natural Phenomena, you will learn about changes that are acquired like when plastic is rubbed with hair and the charging of glass rod when rubbed by silk cloth. Here you will also learn how glass rods get charged by gaining or losing electrons. This section will also explain how charged glass rods can attract paper pieces or repel them.
- Types of Charges and Their Interaction
In this section of Class 8 Science Some Natural Phenomena, you will understand what positively charged electrons are and what are negatively charged electrons. You will also learn why they attract the other charged and uncharged objects. This part of the chapter also teaches you about unlike charges and like charges.
- Transfer of Charge
In this part of CBSE NCERT Class 8 Science Chapter 15, you will see how the charges are transferred through good conductors to other conducting materials. You will also learn that the movement of one electron from one atom to another causes a charge transfer.
Our NCERT Solutions for Class 8 Science Chapter 15-Some Natural Phenomena, also cover electroscope, discharged objects and earth.
In CBSE NCERT Class 8 Science book, you will come to know how lightning is caused and why hot air moves upwards when raindrops are falling down. Here you will also learn that in the atmosphere, the separation of charges results in a negative charge. This section elaborates about air being a poor conductor of electricity.
- Lightning Safety
In this NCERT CBSE Class 8 Science Chapter 15, you will be taught about the lightening safety places inside and outside the house. You will learn where to stay when during lightening. You can stand under small trees, and if you are in a car you must stay inside the car with all doors and windows locked, you must avoid standing near poles, you must not plug electrical appliances, avoid bathing and avoid all contact with electric wires and telephone wires.
The lightening part of NCERT Solutions for Class 8 Science Chapter 15-Some Natural Phenomena, also elaborates about lightning conductors that help in protecting the building at the time of lightning.
In CBSE Class 8 Science Syllabus, you will be learning what causes earthquakes and about the various layers of earth. You will also be able to learn about the movement of plates, seismic /fault zones, seismic waves, seismograph, power of earthquakes, and how to stay safe during an earthquake. Under the power of earthquakes section, you will learn how the magnitude of an earthquake is measured.
NCERT CBSE Class 8 Science Chapter 15: Exercise-Discussion
In this unit of CBSE NCERT Class 8 Science Chapter 15, there is one exercise with 12 questions.
- Question 1 and question 2 are multiple-choice questions.
- Question 3 is a true or false question.
- Question 4 is a short answer question which is asked from the topic transfer of charge.
- Question 5 is a short answer question which is asked from the topic charging by rubbing.
- Question 6 contains a direct question and an application based question. It covers the topic earthquake.
- Question 7 is a short answer question which is from the topic lightening.
- Question 8 and 9 are short answer questions from the topic types of charges.
- Question 10 and 11 are short answer questions from the topic earthquake.
- Question 12 is a situation based question which is asked from the lightning concept.
You will have to explain it with the proper reason. Our NCERT Solutions for Class 8th Chapter 15-Some natural Phenomena answer all questions from the exercise in detail.