The crust is the hard top layer of the Earth The crust varies in thickness from about 10 kilometers or about 6 miles (below oceans) to 65 kilometers or about 40 miles (below continents)
The thin outermost solid layer of the Earth It varies in thickness from about 5 kilometres (beneath the oceans) to 30 to 70 kilometres (beneath the continents)
The earth's crust is the outer brittle rocks of the earth The crust makes up the top part of the giant plates that move slowly across the surface of the earth
A crust is a hard layer of something, especially on top of a softer or wetter substance. As the water evaporates, a crust of salt is left on the surface of the soil