X - SCIENCE - ONLINE TEST LINKS OF ALL CHAPTERS

 1. Chemical Reactions and Equations

 2. Acids, Bases and Salts

 3. Metals and Non-Metals

 4. Carbon and its compounds 

 5. Periodic Classification of elements 

 6. Life Processes

 7. Control and Coordination

 8. How do organisms reproduce

 9. Heredity and evolution

 10. Light - Reflection and Refraction

 11. Human eye and colorful world

 12. Electricity

 13. Magnetic effects of electric current

 14. Sources of energy

 15.  Our environment

 16. Sustainable management of Natural resources