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Grades 912. Students discover basic principles of the hydrosphere. Generating a working model, they investigate ocean currents and determine what creates and influences both surface and subsurface currents. They then expand their investigationcrafting a working model water cycle and experimenting with how different environmental conditions may affect it. Kit includes enough materials for 32 students working in groups of 4. Receive a FREE digital Teacher's Manual and Student Guide with kit purchase.
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