Main content

Pennod 2
Wyth disgybl disglair sy'n cystadlu mewn pedair tasg, ond dim ond un cystadleuydd clyfar fydd 芒'r cyfle i ateb yr Un Cwestiwn. Eight bright students will compete in four challenging tasks!
Darllediad diwethaf
Gwen 10 Mai 2024
17:30