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Cyfres 3
Y sioe i blant sy'n cynnal yr arbrofion na ddylech eu trio adre! The children's show that does the experiments you shouldn't do at home!
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’Dyw’r rhaglen yma ddim ar gael ar ÃÛÑ¿´«Ã½ iPlayer ar hyn o bryd
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Dim darllediadau i ddod
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