CBSE Class 8 Science Exam Preparation
Crop production, cell biology, coal, friction and light — one complete guide
Complete chapter-wise preparation guide for CBSE Class 8 Science. Covers agriculture, microorganisms, conservation, combustion, cells, sound, friction, and chemical effects of current.
Practice with AI Evaluation →80
Theory Marks
20
Practical Marks
3 hours
Exam Duration
15
Total Chapters
Chapter-Wise Marks Breakdown
95 theory marks| Chapter | Marks | Difficulty |
|---|---|---|
| Crop Production and Management | 7 | Easy |
| Microorganisms: Friend and Foe | 7 | Easy |
| Synthetic Fibres and Plastics | 5 | Easy |
| Materials: Metals and Non-metals | 7 | Medium |
| Coal and Petroleum | 5 | Easy |
| Combustion and Flame | 6 | Medium |
| Conservation of Plants and Animals | 6 | Easy |
| Cell — Structure and Functions | 8 | Medium |
| Reproduction in Animals | 7 | Medium |
| Reaching the Age of Adolescence | 6 | Easy |
| Force and Pressure | 6 | Medium |
| Friction | 6 | Medium |
| Sound | 6 | Easy |
| Chemical Effects of Electric Current | 6 | Medium |
| Light | 7 | Medium |
Topics That Appear Every Year
Study Strategy for 90+
Cell chapter is most important — draw plant and animal cells with all organelles
Make comparison tables: metal vs non-metal, plant vs animal cell, kharif vs rabi
Combustion: learn the fire triangle (fuel, heat, oxygen) and all 3 types
Physics chapters (Force, Friction, Sound, Light) need clear definitions with examples
Electroplating diagram is asked every year — practise drawing it
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ClearSteps gives you CBSE Class 8 Science mock papers, concept videos for every chapter, and AI evaluation against the real CBSE marking scheme.