Class 8 Science Important Questions with Answers
Important Questions Class 8 Science
Science is a multi-disciplined subject that helps students to learn various concepts and topics. The objective of the subject is to help students in developing an understanding and assessment of Physics, Chemistry and Biology.
Class 8 Science is a significant milestone in a student’s academic life because it marks the beginning of in-depth knowledge transfer. In such a scenario, the student should solve important questions in class 8 Science apart from studying the Science textbook. The class 8 important question about Science with solutions can be the best support for individuals who are weak in the subject or who have a fear of studying hard concepts at a higher level.
The Extramarks important questions for class 8 Science are prepared by subject experts, based on the exam point of view. By solving these Science questions for class 8, students will understand their weak topics and working on them will help students to perform well and can improve their overall score in examinations. Going through the important questions in class 8 Science students will have an idea of what type of questions will be asked in exams, and it covers all the topics.
What Are The Chapters Covered In The Important Questions Class 8 Science?
There are eighteen chapters in the CBSE class 8 Science textbook, and each chapter has been covered in the Extramarks important questions class 8 Science. These chapters are
Chapter 1: Crop Production and Management
It deals with topics such as agriculture practices, animal husbandry, crop fertilisers, harvesting, irrigation, manure, plough etc.
Chapter 2: Microorganisms: Friend and Foe
Students will learn about different types of microorganisms like bacteria, fungi, protozoans and viruses, the mode of their reproduction, use of microorganisms, harmful microorganisms, pathogens, soil microorganisms, and nitrogen fixation by bacteria.
Chapter 3: Synthetic Fibres and Plastics
This chapter deals with different types of synthetic fibres with their characteristics.
Chapter 4: Materials: Metals and Non-Metals
Here students will learn about the physical and chemical properties of metals and non-metals and their uses.
Chapter 5: Coal and Petroleum
Students will learn about the classification of natural resources, the formation of petroleum, and coal, refining of petroleum.
Chapter 6: Combustion and Flame
This chapter deals with combustion, different types of combustion, necessary things for combustion, flame, the structure of the flame, fuel and the calorific value chart of different fuels.
Chapter 7: Conservation of Plants and Animals
Students will learn about the conservation of plants, animals, forests and wildlife, deforestation, its causes and its consequences. And reforestation.
Chapter 8: Cell – Structure and Functions
Students will learn the difference between structure and function in a cell, the role of the cell membrane and organelles, and compare animal and plant cells.
Chapter 9: Reproduction in Animals
In this chapter, students learn about the reproductive system of human physiology.
Chapter 10: Reaching the Age of Adolescence
This chapter deals with adolescence and puberty, changes in puberty, the reproductive phase of life in humans and reproductive health.
Chapter 11: Force and Pressure
Force and motion play an important role in everyday life. In this chapter, students will learn how force and motion influence their lives and work.
Chapter 12: Friction
Students will learn that frictional force allows objects to move and the factors affecting friction.
Chapter 13: sound
From this chapter, students learn how sound plays an important role in everyday life.
Chapter 14: Chemical Effects of Electric Current
Students will learn about good and bad conductors of electricity, insulators, chemical effects of electric current, electric circuits, conduction of electricity in water, electroplating and applications of electroplating.
Chapter 15: Some Natural Phenomena
This chapter discusses natural phenomena like lightning and earthquake and the measures to be taken to minimise destruction.
Chapter 16: Light
This chapter discusses the introduction to light, laws of reflection, image formation in the plane mirror and dispersion of light.
Chapter 17: Stars and The Solar System
Students will learn the topics celestial objects, sun, comets, planets, meteors, moon and satellite.
Chapter 18: Pollution of Air and Water
This chapter deals with the causes of air pollution, the effects of greenhouse and how it is caused, global warming, reduction of air pollution and causes of water pollution.
Important Questions Class 8 Science – Weightage
The question paper consists of 34 questions and is divided into four sections: A, B, C, and D.
- Section A consists of question numbers from 1 to 15. They are multiple-choice questions carrying one mark each.
- Section B consists of question numbers from 16 to 22, and they are short answer type questions carrying two marks each.
- Section C consists of question numbers from 23 to 31 short answer type questions carrying four marks each.
- Section D consists of question numbers from 32 to 34 long answer type questions carrying five marks each. Solving sample papers is a good method for a student to prepare for the examination. It helps them to understand the pattern of the question paper and the type of question asked in the examination.
Important Questions Class 8 Science Chapter-wise link
To access the important questions, students may click on the chapter-wise link given below.
Important questions class 8 Science Ch 1: Crop Production and Management
Important questions class 8 Science Ch 2: Microorganisms: Friend and Foe
Important questions class 8 Science Ch 3: Synthetic Fibres and Plastics
Important questions class 8 Science Ch 4: Materials: Metals and Non-Metals
Important questions class 8 Science Ch 5: Coal and Petroleum
Important questions class 8 Science Ch 6: Combustion and Flame
Important questions class 8 Science Ch 7: Conservation of Plants and Animals
Important questions class 8 Science Ch 8: Cell – Structure and Functions
Important questions class 8 Science Ch 9: Reproduction in Animals
Important questions class 8 Science Ch 10: Reaching the Age of Adolescence
Important questions class 8 Science Ch 11: Force and Pressure
Important questions class 8 Science Ch 12: Friction
Important questions class 8 Science Ch 13: sound
Important questions class 8 Science Ch 14: Chemical Effects of Electric Current
Important questions class 8 Science Ch 15: Some Natural Phenomena
Important questions class 8 Science Ch 16: Light
Important questions class 8 Science Ch 17: Stars and The Solar System
Important questions class 8 Science Ch 18: Pollution of Air and Water
In addition to the important questions in class 8 Science, students may also access various other study materials on Extramarks. Students may click on the respective links provided below.
CBSE previous year question papers
formulas
FAQs (Frequently Asked Questions)
1. Why is it vital to practise important questions in class 8 Science?
Practising important questions in class 8 Science helps the student to revise for the examination. It helps them understand if they have failed to study any vital topics.
2. How to score good marks in class 8 Science?
Students can refer to various study materials and practise important questions in class 8 Science, solve sample papers and take the mock test with past years’ question papers.
