Earthquakes occur to relieve the tension caused by colliding plates beneath the ground. To demonstrate the physical impact of these collisions, we rubbed graham crackers together. This enabled your little one to observe how the friction of this movement altered the shape of the cracker, and how this relates to earthquake formation.
Though the concept of plate tectonics may be problematic to the preschool learner, experiences that provide them with a three dimensional reproduction of the the desired idea may assist them in understanding what it is that they are seeing. As they perceive the cause and effect of their actions, they can use their words to describe what they perceive as they seek out additional support.