Lamp Lafa

Adnoddau Cymraeg for 5-11 11-14

Yr hyn sydd ei angen arnoch

  • Gwydr mawr
  • Lemonêd (neu ddŵr byrlymog)
  • Cnau daear (neu resins)

Cyfarwyddiadau

  1. Yn gyntaf, llenwch y gwydr â lemonêd.
  2. Trowch y lemonêd am funud neu gadewch iddo fynd ychydig yn fflat. 
  3. Gollyngwch rai cnau daear i mewn i'r gwydr. 

Canlyniadau ac Esboniad

Bydd y cnau yn codi i'r wyneb ac yn disgyn eto, fel mewn lamp lafa. Bydd swigod nwy yn tyfu ar y cnau daear, gan achosi iddynt godi i'r wyneb.  Pan fyddant yn cyrraedd yr wyneb, bydd y swigod yn byrstio a bydd cnau daear yn disgyn eto.

Llawrlwythwch

Marfin a Milo 6 - Lamp Lafa.pdf
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Marfin a Milo

Yma gallwch bori trwy'r ôl-gatalog cyfan o weithgareddau ffiseg Marfin a Milo...

For 5-11 11-14 21 Resources

Ready To Teach Collection

Adnoddau addysgu yn y Gymraeg

Yma gallwch bori trwy'r ôl-gatalog cyfan o Cymraeg adnoddau ffiseg.

For 11-14 14-16 16-19 26 Resources

Misconceptions
RESEARCH REVIEW Light, Sound and Waves

Many students will be familiar with light being described in 'bits' and being contained to specific areas

  • Number of Resources3
  • Number of References3
  • Number of Diagnostic Resources0
RESEARCH REVIEW Energy and Thermal Physics

Many students attribute macroscopic properties (like hot, cold, expansion) to particles when using a particulate model

  • Number of Resources1
  • Number of References1
  • Number of Diagnostic Resources6
RESEARCH REVIEW Earth and Space

Some students may hold the belief that the Sun travels around the Earth

  • Number of Resources2
  • Number of References3
  • Number of Diagnostic Resources2
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