Defnyddio egni
Subtitle: oed 5-7 : canllaw athrawon
By: [addasiad Cymraeg: Ken a Sian Owen].
Contributors: Owen, Ken.; Owen, Sian.
Series: Gwyddoniaeth gynradd Nuffield : archwilio prosesau a chysyniadau gwyddonol; Gwyddoniaeth gynradd Nuffield
Publisher: Gwasg y Dref Wen
Published: 1997
Place of publication: Caerdydd
Language: wel
Number of pages: 44
Subjects: Science -- Study and teaching (Elementary); Force and energy -- Study and teaching (Elementary); Power resources -- Study and teaching (Elementary); Fuel -- Study and teaching (Elementary); Teaching -- Aids and devices.
Work titles: Using energy, ages 5-7. Welsh.
Notes: Arg. Saesneg gwreiddiol = Original English ed.: Llundain: Collins Educational, 1993, 1995.

Yn cynnwys mynegai = Includes index.

Addasiad Cymraeg o = Welsh adaptation of: Using energy, ages 5-7 : teachers' guide.