Reflection_welsh

Reflection_welsh - yn dangos yr isod Tasg – Taflen waith...

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Am adlewyrchiad golau. BYD
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Gloi! Ar ddarn o bapur bras – mewn parau – rhestrwch yr holl ffynonellau golau yr ydych wedi gweld/defnyddio y bore yma.
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Tasg – Taflen waith 1
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Mae gan oleuni dri o briodweddau pwysig: 1.Mae goleuni’n teithio mewn llinellau syth o ffynhonnell goleuni i’ch llygad. 2.Os oes rhywbeth yn ffordd goleuni, cewch gysgod.
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Rydym yn gweld oherwydd .... Mae goleuni weithiau’n dod yn union o’r ffynhonnell i’n llygaid. Mae goleuni hefyd yn adlamu oddi ar wrthrychau i’n llygaid Cop ï wch y colofnau yma  i’ch llyfrau Gwyddoniaeth  – a gwnewch lun/diagram  yn dangos yr uchod Cop ï wch y colofnau yma  i’ch llyfrau Gwyddoniaeth  – a gwnewch lun/diagram 
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Unformatted text preview: yn dangos yr isod Tasg – Taflen waith 2 (rhan 1af) Mae goleuni’n adlewyrchu’n well oddi ar rai defnyddiau nag eraill. ... 1. Mae . ............ a gwrthrychau sgleiniog yn adlewyrchu goleuni’n dda. 2. Dydy gwrthrychau tywyll ddim yn adlewyrchu goleuni’n dda, am na all y goleuni adlamu oddi ar yr wyneb. Chwarae gyda golau Trwy ddefnyddio drychau, gallwn newid cyfeiriad golau. http://www.bbc.co.uk/schools/ks2bitesize/science/activities/see_ Mae modd newid cyfeiriad golau, trwy newid ongl y drych (neu drychau) yr mae’r golau’n adlamu oddi arni (neu arnynt). Tasg – Taflen waith 2 (2il rhan)...
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