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Ffrwydrad annisgwl

Gwyliwch fideo o arbrawf gwyddoniaeth. Dilynwch y dull a chrëwch eich arbrawf gwyddoniaeth eich hun gartref. Ymchwiliwch a dysgwch pam y ffrwydrodd y botel lemonêd a pha adwaith ddigwyddodd.

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