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Samaynta dhagaxa sedimentary

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I can describe the formation of sedimentary rock and suggest information that can be obtained from its layers.

Muuji qoraalka
Water in nature always contains minerals. Sediments are deposited when wind or waterways slow down or when glaciers melt. Layers of sediment form over many years, leading to compaction. Sedimentary rock forms when sediment is buried and compressed, and salts from fluids cement the grains together. Strata can be used to create a relative timeline and provide clues to the environment when the sediments were deposited.

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Imtixaannada

  1. 1. Markan dhagaxyo (fragments of rock) ayaa isku dhacaya, iyo markay hoos u socdaan webiga ama badda, waxaa dhici kara in qaybo kale ka jajabaan. Waa maxay magaca habkan?

    • Jawaabta saxda ah:Nabaad-guur (erosion)
    • Cimiladu (weathering)
    • Baraf-qaboojin (freeze-thaw)
    • Dhalaalid (melting)

  2. 2. Qolofka loogu yeedho 'shells' wuxuu ka samaysan yahay calcium carbonate. Maxaa la heli lahaa haddii jajabyo qolof ah lagu daro khal (vinegar)?

    • Xal buluug ah.
    • Jawaabta saxda ah:Sii daynta gaaska carbon dioxide (carbon dioxide gas).
    • Sii daynta gaaska hydrogen (hydrogen gas).
    • Jajabyada qolofka kama falcelin karaan khal.

  3. 3. Dooro sharaxaadda ugu fiican ee fosilka.

    • Wax aad u da' weyn.
    • Jawaabta saxda ah:Hadhaaga ama raadraacyada la ilaaliyay ee xayawaan ama dhir dhintay oo ka weyn 10 000 sano jir.
    • Qaybaha jilicsan ee jidhka xayawaanka dhintay oo laga helay dhagax gudihiisa.
    • Lafta xayawaanka dhintay.

  4. 4. Waa dhagaxyo noocee ah oo ay yihiin noocyo dhagax dab ah (igneous rock)?

    • Jawaabta saxda ah:Basalt
    • Granite
    • Sandstone
    • Marble

  1. 1. Waa maxay sediment (dhulka la xareeyo)?

    • Nooc dhagax ah oo ka samaysan lafaha (lava)
    • Jawaabta saxda ah:Qalab ay xareeyaan biyo, dabayl, ama baraf, sida dhagaxyo yaryar, ciid, ama cusbo
    • Nooc macdan (mineral) ah oo laga helo kaliya godadka
    • Hab ay ku samaysmaan lakabyada dhagaxa

  2. 2. Waa maxay sababta ugu weyn ee dhulka (sediment) uu ku ururo?

    • Kororka heerkulka
    • Jawaabta saxda ah:Hoos u dhaca xawaaraha dabaysha ama biyaha, ama barafka oo dhalaalaya
    • Kororka xawaaraha dabaysha
    • Dhulgariir

  3. 3. Waa maxay strata ee dhagaxyada sedimentary (dhagaxa la dhigay)?

    • Macdanta (minerals) ku xidha jajabka ciidda
    • Jawaabta saxda ah:Lakabyo dhagax ah oo ka samaysmay dhigaalka (deposition) jajabka
    • Noocyo ka mid ah dhagaxyada sedimentary
    • Hababka (processes) qaada jajabka

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