Golwg gyntaf ar egni
By: [golygydd a phrif awdur: Pamela Wadsworth] ; [addasiad Cymraeg: Ken a Sian Owen].
Contributors: Wadsworth, Pamela.
Series: Gwyddoniaeth gynradd Nuffield : archwilio prosesau a chysyniadau gwyddonol; Gwyddoniaeth gynradd Nuffield
Publisher: Dref Wen
Published: 1997
Place of publication: Caerdydd
Language: wel
Number of pages: 24
Subjects: Science -- Study and teaching (Elementary); Force and energy -- Study and teaching (Elementary); Heat -- Study and teaching (Elementary); Cold -- Study and teaching (Elementary)
Work titles: First look at energy. Welsh.
Notes: Arg. Saesneg gwreiddiol = Original English ed.: London: Collins Educational, 1993.

Addasiad Cymraeg gan = Welsh adaptation by: Ken a Sian Owen.

Teitl clawr = Cover title.

Yn cynnwys mynegai = Includes index.