After predicting what would happen when two plates move apart, students gathered evidence from the Mid-Atlantic Ridge, an expansive section in the middle of the Atlantic Ocean that is splitting apart!
After seeing all the differences in the landforms that can occur along the ridge (fissures, slow volcanoes, minerals being released, gases/steam coming out of the ground, new ocean floor being developed as magma's pushes upward and cools, etc), we recognize that plates moving away from each other also drastically shape the way Earth changes, slowly but surely! We updated our Mountain Movement Changes chart...and it's more complicated that we ever thought!
It looks like it's time to put LOTS of ideas together!