The Rock Cycle

This week in science we are reviewing the rock cycle.  Students made sedimentary rock sandwiches, drew diagrams of them in their notebook and labeled youngest and oldest layers.  Next, they combined their group "rock" into one large sedimentary rock.  This was wrapped with plastic wrap (to keep things clean) and then heat and pressure (sitting on the sandwich and a microwave) were applied to make the sedimentary rock into something new...metamorphic rock.  This was then opened and analyzed.  Again, students drew a diagram of this "new" rock.  It is funny, as although every student wanted so much to eat their sedimentary rock, hardly any wanted anything to do with the metamorphic rock.