Unit 4B Vocabulary

3. mountains formed by bending rocks.
7. rocky material that makes up the continents; it is less dense and contains a greater amount of lighter colored minerals in the oceanic crust.
10. mountains formed when rocks move along faults, leaving blocks of crust at different elevations.
12. the process in which one lithospheric plate slides under another; occurs at converging plate boundaries.
13. form where lithospheric plates are moving away from each other.

1. outermost layer of earth's surface, which is rocky and solid; includes the crust and rigid part of the upper mantle.
2. height above sea level.
4. map that shows the shape and elevation of the land surface using contour lines, and shows other land features using symbols.
5. a boundary between two lithospheric plates are sliding past each other.
6. formed where two sections of earth's crust are colliding.
8. portion of earth's crust that lies beneath the oceans; it is thinner than continental crust.
9. on a map, a line that connects points of equal elevation above sea level.
11. under sea mountain range that forms where two parts of earth's crust are pushing apart.