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The meaning of recalling our experiences and then of this activity was to show that metals are good conductors of heat and electricity. We learnt this in Class Zinc is a metal while phosphorus, sulphur and oxygen are nonmetals so they cannot be beaten to form sheets. Hint: Metals ae malleable. 2. Which of the followingRead and download free pdf of Class 8 Science Metals and Non Metals Exam Notes. Students and teachers of Class 8 Science can get free advanced study NCERT Book for Class 8 Science Chapter 4 Materials: Metals and Non-Metals is available for reading or download on this page. Students who are in Class 8. NCERT Book Class 8 Science Chapter 04: Materials Metals and Non Metals in Hindi and English Medium in PDF form download here. Class viii CHAPTER -4 MATERIALS : METALS AND NON METALS. 1) Occurrence of metals and non metals :- •Out of the 92 naturally occuring elements 70 are metals FOR FORMATIVE AND SUMMATIVE ASSESSMENT. A. MULTIPLE-CHOICE QUESTIONS: 1. Which of the following is true for all metals? a. They are hard solids.