Hunter chose volcanoes as our next unit to study. Makes sense after dinosaurs. One of our first activities was to make a ‘crust of earth’ cake. We dyed batter four different colors to represent the inner core, outer core, mantle, and crust. After it baked it was DELICIOUS but not quite the clear, defined layers we wanted. But when it comes to cake, who really cares as long as it tastes good. Ha!