Class 8 Science Chapter 8, Nature of Matter: Elements, Compounds, and Mixtures, introduces students to the basic classification of matter based on composition. This chapter explains the properties of elements, compounds, and mixtures, along with methods of separating mixtures and understanding physical and chemical changes.
Practising important questions from this chapter helps students strengthen conceptual understanding, improve problem-solving skills, and prepare effectively for school exams. These questions are selected from the latest syllabus and cover important definitions, differences, examples, and application-based concepts.
Important Questions for Class 8 Science Chapter 8 by PW cover all the major concepts of the chapter, including elements, compounds, mixtures, homogeneous and heterogeneous mixtures, separation techniques, and related reasoning-based questions.
(A) They are pure substances with definite composition
(B) They can be separated by physical methods
(C) They always exist as gases
(D) They are made up of a single type of molecule
Ans: (A)
(A) Air
(B) Sugar solution
(C) Oil and water
(D) Vinegar
Ans: (C)
(A) To change the state of the mixture
(B) To remove harmful or unwanted substances
(C) To increase the quantity of food
(D) To add new components to the mixture
Ans: (B)
(A) Mixture of elements
(B) Compound
(C) Mixture of elements and compounds
(D) Single element
Ans: (A)
(A) Lemonade
(B) Poha
(C) Air
(D) Detergent solution
Ans: (B)
Students can also download the Important Questions for Class 8 Science Chapter 8 PDF for offline revision. The PDF provides chapter-wise important questions in one place, making it easier to practise before class tests, periodic assessments, and annual examinations. It is a useful revision resource for improving conceptual clarity and confidence.
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Preparing this chapter becomes easier when you understand the basic concepts instead of memorising definitions. Regular revision and solving questions can help you score well in school exams.
Understand the Basic Concepts First: Learn the difference between elements, compounds, and mixtures with simple examples from daily life.
Revise Important Definitions and Properties: Focus on key terms, characteristics, and comparisons, as these are commonly asked in exams.
Practice Diagrams and Examples: Go through textbook illustrations and examples to understand the classification of matter more effectively.
Solve NCERT and Important Questions: Practice textbook exercises, previous year questions, and extra important questions to strengthen your preparation.
Revise Regularly Using Short Notes: Prepare quick notes, tables, and comparison charts for last-minute revision before the exam.