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    In this activity, students demonstrate how substances are dissolved and transported by water through the soil.

    By the end of this activity, students should be able to:

    • demonstrate the leaching of a substance through sand (soil)
    • explain how irrigation and rain can affect nitrate and phosphate leaching.

    Download the Word file (see link below) for:

    • introduction/background notes
    • what you need
    • what to do
    • discussion questions
    • student handout.
      Published 30 July 2013 Referencing Hub articles