Tag: Natural Systems Internal Forces


The rocks at or near convergent plate boundaries are placed under tremendous pressure. As the plates collide, these rocks are compressed, causing folding.

Volcanic Activity

Volcanic activity includes the rising of molten material within the lithosphere or onto the Earth’s surface. Volcanic activity occurs at plate boundaries.


An earthquake is a shock or series of shocks caused by a sudden movement of crustal rocks. They are caused by a sudden release of pressure within the crust.

Plate Tectonics

The Earth’s surface is not a continuous layer. Plate tectonics describes the study of crustal plates and how their movement affects the Earth’s surface.