Grade 9 Science

මාතෘකා ලුහුඬු සටහන

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  General

  • Announcements සංසදය
1. Applications of Micro-organisms
2. Eye and Ear
3. Nature and Properties of Matter
4. Basic Concepts Associated with Force
5. Pressure Exerted by Solid
6. The Human Circulatory System
7. Plant Growth Substances
8. Support and Movements of Organisms
9. The Evolutionary Process
10. Electrolysis
11. Density
12. Bio-diversity
13. Artificial Environment and Green Concept
14. Reflection and Refraction of Waves
15. Simple Machines
16. Nanotechnology and its Applications
17. Lightning Accidents
18. Natural Disasters
19. Sustainable Use of Natural Resources