Isostasy is a model for the formation of Mountains.
Isostasy is the theory that the crust of the Earth floats in equilibrium on the denser rocks of the mantle. Mount Everest is the tallest mountain in the world and stands at 8.8 km high. As the Lithosphere erodes it must be deposited. Complete the following task and you may know the past and future 1. Place equal amounts of sediment in either pan.