Chapters
Chapter 2: Microorganisms : Friend and Foe
Chapter 3: Synthetic Fibres and Plastics
Chapter 4: Materials : Metals and Non-metals
Chapter 5: Coal and Petroleum
Chapter 6: Combustion and Flame
Chapter 7: Conservation of Plants and Animals
Chapter 8: Cell - Structure and Functions
Chapter 9: Reproduction in Animals
Chapter 10: Reaching the Age of Adolescence
Chapter 11: Force and Pressure
Chapter 12: Friction
Chapter 13: Sound
Chapter 14: Chemical Effects of Electric Current
Chapter 15: Some Natural Phenomena
Chapter 16: Light
Chapter 17: Stars and the Solar System
Chapter 18: Pollution of Air and Water
Chapter 15: Some Natural Phenomena
NCERT solutions for Class 8 Science Textbook Chapter 15 Some Natural Phenomena [Page 197]
Which of the following cannot be charged easily by friction?
A plastic scale
A copper rod
An inflated balloon
A woollen cloth
When a glass rod is rubbed with a piece of silk cloth the rod
and the cloth both acquire positive charge.
becomes positively charged while the cloth has a negative charge.
and the cloth both acquire negative charge.
becomes negatively charged while the cloth has a positive charge.
Write T against true and F against false in the following statement.
Like charges attract each other. (T / F)
True
False
Write T against true and F against false in the following statement.
A charged glass rod attracts a charged plastic straw. (T / F).
True
False
Write T against true and F against false in the following statement.
Lightning conductor cannot protect a building from lightning. (T/F)
True
False
Write T against true and F against false in the following statement.
Earthquakes can be predicted in advance. (T / F)
True
False
Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain.
Explain why a charged body loses its charge if we touch it with our hand.
Name the scale on which the destructive energy of an earthquake is measured. An earthquake measures 3 on this scale. Would it be recorded by a seismograph? Is it likely to cause much damage?
Suggest Three Measures to Protect Ourselves from Lightning.
Explain why a charged balloon is repelled by another charged balloon whereas an uncharged balloon is attracted by another charged balloon?
Describe with the help of a diagram an instrument which can be used to detect a charged body.
List three states in India where earthquakes are more likely to strike.
Suppose you are outside your home and an earthquake strikes. What precaution would you take to protect yourself?
The weather department has predicted that a thunderstorm is likely to occur on a certain day. Suppose you have to go out on that day. Would you carry an umbrella? Explain.
Chapter 15: Some Natural Phenomena
NCERT solutions for Class 8 Science Textbook chapter 15 - Some Natural Phenomena
NCERT solutions for Class 8 Science Textbook chapter 15 (Some Natural Phenomena) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CBSE Class 8 Science Textbook solutions in a manner that help students grasp basic concepts better and faster.
Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.
Concepts covered in Class 8 Science Textbook chapter 15 Some Natural Phenomena are Lightning, Charging by Rubbing, Types of Charges and Their Interaction, Transfer of Charge, Story of Lightning, Concept of Lightning Safety, Earthquakes.
Using NCERT Class 8 solutions Some Natural Phenomena exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 8 prefer NCERT Textbook Solutions to score more in exam.
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