Students model Earth's tectonic plate movement and explore the relationship between these movements and different types of volcanoes.

Students will review the NASA Space Place video, "Tectonic Forces", and answer questions about tectonic plates.

In this activity, students make a claim about the cause of ocean currents and then develop a model to explain the role of temperature and density in deep ocean currents.  This lesson is modified from "Visit to an Ocean Planet" Caltech and NASA/Jet Propulsion Laboratory.