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    • Blue and white waves and sky.
    Rights: Evgeniy Gritsay, licensed through 123RF.com Published 30 June 2010 Size: 310 KB Referencing Hub media

    The surface of the ocean marks a boundary between the ocean and the atmosphere. Scientists are developing new tools to help them study what is going on at, and below, this boundary.

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      ACTIVITY

      Is all salt the same?

      In this activity, students consider, critically analyse and debate statements about different types of salt used in cooking and claims made for them. By the end of this activity, students should ...

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      2. ARTICLE

      The ocean in action – introduction

      The ocean is part of our lives – we may swim in it, sail on it or eat food from it. Many aspects of the ocean affect us – it controls climate, supports life, wears away land, and provides ...

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