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Faafitaanka iyada oo loo marayo walax daloola: shaybaar

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Waxaan sharxi karaa indha-indheynta faafitaanka iyada oo loo marayo jello cubes (walax daloola).

Hordhac

Casharkayaga maanta wuxuu ku saabsan yahay faafitaanka (diffusion) iyada oo loo marayo shay dhexmara, waxaanan ka mid yahay cutubka 'Diffusion'. Waa inaad hore u garanaysaa sida faafitaanku u shaqeeyo hawada ama biyaha, sababtoo ah waxaan eegi doonnaa sida uu uga dhaco xabagta jelly-ga.

Muuji qoraalka
Particles of a liquid can move through a material by diffusion if the material is permeable. Observe a liquid diffusing into a jelly cube. Predict and observe effect of temperature on the diffusion of a liquid into a jelly cube. Predict and observe effect of cube size on the diffusion of a liquid into a jelly cube. Use ideas about particles and diffusion to explain these observations.

Warqadda shaqada

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Imtixaannada

  1. 1. Yaa saxan?

    • Aisha: "Waxyaabaha kaliya ee ka kooban walxaha (particles) waa dareerayaasha."
    • Izzy: "Waxyaabaha kaliya ee ka kooban walxaha waa gaasaska."
    • Lucas: "Waxyaabaha ka kooban walxaha waa dareerayaasha iyo gaasaska oo keliya."
    • Jawaabta saxda ah:Sam: "Adkaha, dareerayaasha iyo gaasasku waxay ka kooban yihiin walxaha."

  2. 2. Walxaha (particles) ka kooban dareeraha (liquid) waa ...

    • kuwa meel go'an ku haya.
    • kuwa si joogto ah u dhaqaaqaya dhinac ilaa dhinac.
    • Jawaabta saxda ah:kuwa si joogto ah u dhaqaaqaya jihooyin aan kala sooc lahayn.

  3. 3. Hadhigee baa run ah?

    • Jawaabta saxda ah:Waxaa jira urur (concentration) sare oo ku yaal aagga A marka loo eego aagga B.
    • Waxaa jira urur sare oo ku yaal aagga B marka loo eego aagga A.
    • Ururku waa isku mid aagga A iyo aagga B.

  4. 4. Dhinac ee ka iman doono dhaqdhaqaaqa shabakadda ee walxaha (particles)?

    • Jawaabta saxda ah:dhaqdhaqaaqa shabakadda ee ka imanaya aagga A una soconaya aagga B
    • dhaqdhaqaaqa shabakadda ee ka imanaya aagga B una soconaya aagga A
    • dhaqdhaqaaqa shabakadda ee ka soconaya labada dhinac
    • ma jiro dhaqdhaqaaq shabakad ah

  5. 5. Dhinac ayay qaybuhu (particles) u dhaqaaqaan iyagoo raacaya heerka ururinta (concentration gradient)?

    • kaliya dhinaca A ilaa B
    • kaliya dhinaca B ilaa A
    • Jawaabta saxda ah:labada dhinacba
    • midna dhinac

  1. 1. Qaybaha dareeraha waxay geli karaan cube jelly iyada oo loo marayo habka ...

    • fiirsashada.
    • midab-ka-baxa.
    • Jawaabta saxda ah:faafinta (diffusion).
    • saadaalinta.
    • kala-duwanaanta.

  2. 2. Afee, beakerkee ayay qaybaha aashitada (acid) ku faafeen (diffuse) ilaa bartamaha xabagta jelly?

    • beaker A
    • beaker B
    • beaker C
    • Jawaabta saxda ah:beaker D

  3. 3. Saadaasha sayniska ee kee ayaa u badan inay sax noqoto?

    • Jawaabta saxda ah:Heerkulka hoose, waqtiga loo qaadanayo inuu midabka ka baxo (decolourise) cube-ga wuu dheeran doonaa.
    • Heerkulka hoose, waqtiga loo qaadanayo inuu midabka ka baxo cube-ga wuu gaaban doonaa.
    • Heerkulku saameyn kuma yeelan doono waqtiga loo qaadanayo inay cube-yada midabka ka baxaan.

  4. 4. Jelly cubes oo saddex balac oo kala duwan ah ayaa lagu riday acid. Kee ayaa si buuxda u midab-ka baxaya (decolourised) marka ugu gaaban ee acid-ku qaadanayo?

    • Jawaabta saxda ah:Kuwa balac 1.0 cm
    • Kuwa balac 1.5 cm
    • Kuwa balac 2.0 cm
    • Waqtiga loo qaadanayo wuxuu isku mid noqonayaa mid kasta oo ka mid ah.

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