Fel rhan o Wythnos Wyddoniaeth, mae gan Aled gwestiynau gwyddonol i Deri Tomos. As part of Science Week, Aled takes the opportunity to ask Deri Tomos some scientific questions. Show more
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Fel rhan o Wythnos Wyddoniaeth, mae gan Aled gwestiynau gwyddonol i Deri Tomos. As part of Science Week, Aled takes the opportunity to ask Deri Tomos some scientific questions. Show more
Ail wasanaeth BBC Radio Cymru sy'n cynnig sioe frecwast bob bore'r wythnos.
