1. Begin by giving each student a model and describing them as a model of the Earth.
2. Ask the students what part of the Earth they are touching (the crust)
3. Have students push the plates gently against each other. * Ask - When one plate moves away from another (divergence) what happens on the other side of this same plate. Students should ascertain that it would move toward a plate on the other side (convergence)
4. Have students model convergence, divergence, and transform boundaries as an informal assessment. Discuss and teach concepts as necessary.
5. After students have all had enough time to process, have the students peel off the crust. They may eat the crust. Discuss crust as similar to pizza crust because it is on the outside of the Earth like pizza crust is on the outside of the pizza.
6. Tell students that the gooey chocolate represents the mantle of the Earth (plastic moldable - lithosphere floats on the asthenosphere). Tell the students that one weakness of the model is that the chocolate Nutella should go all the way through to the core. Discuss models and their use in science if time allows. For more advanced students, discuss the convection currents that scientists believe fuel contintnetal drift.
7. After a discussin of the mantle, students may eat to the liquid core (honey).
For more advanced students, discuss the inner and outer core.
Students may eat the inner core (candy).