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|5
|5
Bio-geo Chemical Cycle
|Bio-geo Chemical Cycle
|[http://www.textbooksonline.tn.nic.in/Books/Std09/Std09-II-SSS-EM-1.pdf Tamilnadu Textbook Class - IX - Chapter - 5 - Bio-geo Chemical Cycle]
|[http://www.textbooksonline.tn.nic.in/Books/Std09/Std09-II-SSS-EM-1.pdf Tamilnadu Textbook Class - IX - Chapter - 5 - Bio-geo Chemical Cycle]
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|6
|6
|Reproduction in plants
|Reproduction in plants
|[http://www.textbooksonline.tn.nic.in/Books/Std10/Std10-Science-EM-1.pdf Tamilnadu Textbook Class - X - Chapter - 4 - Reproduction in plants]|-
|[http://www.textbooksonline.tn.nic.in/Books/Std10/Std10-Science-EM-1.pdf Tamilnadu Textbook Class - X - Chapter - 4 - Reproduction in plants]
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|7
|7
|Properties of matter
|Properties of matter
|12
|12
|Chemical bonding
|Chemical bonding
|[http://www.textbooksonline.tn.nic.in/Books/Std09/Std09-III-SSS-EM-2.pdf Tamilnadu Textbook Class - IX - Chapter - 13 - Chemical Bonds
|[http://www.textbooksonline.tn.nic.in/Books/Std09/Std09-III-SSS-EM-2.pdf Tamilnadu Textbook Class - IX - Chapter - 13 - Chemical Bonds]
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|13
|13
|15
|15
|Energy
|Energy
|[http://www.textbooksonline.tn.nic.in/Books/Std09/Std09-III-SSS-EM-2.pdf Tamilnadu Textbook Class - IX - Chapter - 18 - Work, Power and Energy
|[http://www.textbooksonline.tn.nic.in/Books/Std09/Std09-III-SSS-EM-2.pdf Tamilnadu Textbook Class - IX - Chapter - 18 - Work, Power and Energy]
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