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Water Body Salinities II
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In this activity, learners discuss the different salinities of oceans, rivers and estuaries.
Bone Identification
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This activity (page 3 of the PDF under SciGirls Activity: Dinosaurs) is a full inquiry investigation into fossil hunting and identification.
Sustainable Fishing
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In this activity, learners use a model for how fishing affects marine life populations, and will construct explanations for one of the reasons why fish populations are declining.