• Question: what is sand

    Asked by race46cup to Amy Heather, Annette, Ann, Jake, Philip on 21 Nov 2019.
    • Photo: Amy Heather Fitzpatrick

      Amy Heather Fitzpatrick answered on 21 Nov 2019:

      So sand is made up of rocks of many different types. It depends where you find or make the sand. Basically the rock has been broken up over time by wind or water or sun and breaks down into tiny particles. The sand in coastal areas can also be partly made up of the shells or skin of broken down fish and shellfish. Most sand is made up of silicon dioxide, calcium carbonate or aragonite.

    • Photo: Philip Schuler

      Philip Schuler answered on 21 Nov 2019:

      Geologically speaking, to be sand, the grain must have a diameter ranging between 0.0625 and 2 mm.

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