My Revision Notes: WJEC GCSE Biology
2017
TGAU Gwyddoniaeth Gymhwysol CBAC: Gradd Unigol a Dwyradd
2023
WJEC GCSE Applied Science
2022
My Revision Notes: AQA Applied Science
2021
Fy Nodiadau Adolygu: CBAC TGAU Gwyddoniaeth Dwyradd (My Revision Notes: WJEC GCSE Science Double Award, Welsh-language Edition)
2018
CBAC TGAU Ffiseg (WJEC GCSE Physics Welsh-language edition)
2018