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Water Body Salinities II
Source Institutions
In this activity, learners discuss the different salinities of oceans, rivers and estuaries.
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The Great Plankton Race
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In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.
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All Mixed Up!
Source Institutions
In this activity, learners separate a mixture of pebbles, salt crystals, and wood pieces. They add water and pour the mixture through a strainer.