Beth sy'n arnofio a beth sy'n suddo a pham? Dewch i ddarganfod mwy gyda Awi a'r criw. What floats and what sinks and why? Come and discover more in the company of Awi and crew.
5 o fisoedd ar 么l i wylio
17 o funudau
Gweld holl benodau Waw!
