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This activity focuses on interactions within Earth systems and the effects of human activities. In this activity learners build a biomass pyramid.

In this activity, learners will collect, dry and press seaweed over the course of four days in a similar way that artists/crafters press flowers.

In this activity, learners use sets of cards to assign microorganisms to different groups.

In this activity (on pages 22-24 of the PDF), learners match extreme enviroments with life forms they support.