Flexi Says: Plate boundaries are where two plates meet. These are dynamic areas. Most geologic activity takes place at plate boundaries. As plates interact, they cause many of the large features we see on Earth's surface. As plates interact they can cause volcanoes, earthquakes. They can even cause mountain ranges to form. Plates can interact in different ways. Plates can move away from each other. They can move toward each other. Finally, they can slide past each other. These are the three types of plate boundaries: At divergent plate boundaries the two plates move away from each other. At convergent plate boundaries the two plates move towards each other. At transform plate boundaries the two plates slip past each other.