Science:

1. Acid, Base and Salt:
   • ssc science (pp 156 onwards)
   • viii science (pp 109 onwards)
   • khan academy—india playlist
   • pH: ssc chemistry (pp
2. Water:
   • ssc science (pp 40 onwards)
   • ssc chemistry (pp 231 onwards)
3. Atmosphere:
   • ssc geography (pp 76 onwards)
4. Our Resources:
   • ssc science (pp 172 onwards)

Bangladesh Affairs:

1. Geography of Bangladesh: SSC geography
2. Demographic Features: VIII BGS
3. History and Culture of Bangladesh: VII BGS
4. Economy, Society, Literature and Culture:
5. Bangladesh Environment, Nature, Challenges and Prospects:
6. Natural Resources of Bangladesh:
7. The Constitution:
8. Organs of Government:
9. Foreign Policy and External Relations:
10. Political Parties:
11. Elections in Bangladesh:
12. Contemporary Communication:
13. Globalisation and Bangladesh:
14. Gender Issues and Development:
15. The Liberation War and It’s Background: