कार्बन और उसके यौगिक

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परिचय: यह अध्याय कार्बन और उसके यौगिकों के अध्ययन के लिए समर्पित है, जो हमारे जीवन और पर्यावरण के लिए अत्यंत महत्वपूर्ण हैं। कार्बन एक बहुमुखी तत्व है जो सजीवों और हमारे दैनिक उपयोग की अनगिनत वस्तुओं का आधार है। पृथ्वी की भूपर्पटी और वायुमंडल में इसकी अल्प मात्रा (भूपर्पटी में 0.02% खनिजों के रूप … Read more

Class 9 Chapter 1 “Matter in Our Surroundings” Sample Paper

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Class 9 Chapter 1 “Matter in Our Surroundings” Sample Paper CLASS IX – SCIENCE Chapter 1: Matter in Our Surroundings Time Allowed: 3 Hours Maximum Marks: 80 General Instructions: Section A (20 Marks) (16 MCQs and 4 Assertion-Reasoning Type Questions) Multiple Choice Questions (1 x 16 = 16 Marks) Assertion-Reasoning Type Questions (1 x 4 … Read more

Class 9 Science Chapter 1 MATTER IN OUR SURROUNDINGS

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Class 9 Science Chapter 1 MATTER IN OUR SURROUNDINGS Combustion and Flame Next Question 1 What is “matter” according to scientists? Answer : Everything in this universe is made up of material which scientists have named “matter”. Question 2 What are the two fundamental properties all matter possesses? Answer : All matter occupies space and … Read more

Class 9 Science Chapter 5 THE FUNDAMENTAL UNIT OF LIFE

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Combustion and Flame Next Here are the notes for Chapter 5 “THE FUNDAMENTAL UNIT OF LIFE,” drawing on the provided excerpts: Chapter 5: THE FUNDAMENTAL UNIT OF LIFE 1. Introduction to Cells 2. What are Living Organisms Made Up of? 3. Structural Organisation of a Cell 4. Plasma Membrane or Cell Membrane 5. Cell Wall … Read more

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