| 2021 Secondary 3 Combined Science (Chemistry) SA2 / End of Year · Answers listed | Meridian Secondary | secondaryexampapers.com Questions and answers |
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| 2021 Secondary 4 Combined Science (Chemistry) SA2 / Prelim Paper / End of Year Exam Paper · Answer availability not stated | Bendemeer Secondary | secondaryexampapers.com Questions and answers |
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| 2021 Secondary 4 Combined Science (Chemistry) SA2 / Prelim Paper / End of Year Exam Paper · Answer availability not stated | Fuchun Secondary | secondaryexampapers.com Questions and answers |
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| 2021 Secondary 4 Combined Science (Chemistry) SA2 / Prelim Paper / End of Year Exam Paper · Answer availability not stated | Zhonghua Secondary | secondaryexampapers.com Questions and answers |