Teachers, save “Lapio anrheg Sali Sws : wrapping Sali Sw…” to assign it to your class.

Mae Sali Sws yn byw o dan y môr! Rhaid sicrhau bo ni’n lapio anrheg sali mewn rhywbeth sy’n wrth-ddŵr. Cofiwch wasgu ar cyn symud y lluniau. •Dewiswch 4 hosan (cofiwch efallai byddant yn gwlychu) •Lapiwch 1 hosan mewn papur, 1 mewn ffoil, 1 mewn defnydd ac 1 mewn plastig •Ar y weithgaredd symudwch y lluniau i ddangos beth yw eich rhagfynegiad •Rhowch y sanau mewn dŵr am 30 eiliad •Agorwch pob parcel •Pa sanau sy’n wlyb, a pha rhai sy’n sych? Dangoswch ar yr ail daflen eich canlyniadau. Oedd eich rhagfynegiad yn gywir? Gwnewch yn siwr bo dîm bylchau pan rydych yn lapio’r sanau! Sali Sws lives under the sea, so we need to make sure that her present is wrapped in a material that’s waterproof. Remember to press on before moving the pictures. •Choose 4 socks, remember that they might get wet! •Wrap 1 sock in paper, 1 in ffoil, 1 in plastic and 1 in materIal. •Move the pictures in the activity to show what your predictions are. •Place the sock parcels in water for 30 seconds. •Take them out and unwrap them. Which socks are dry and which are wet? Move the pictures on the second slide to show your results. Were your predictions right? Make sure there are no gaps or holes when you wrap the socks!