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Chapter 2 Section 2
Terms to Know:
continental drift
plate tectonics
1. _______________________ is the process by which mountains can form as sea plates dive beneath
continental plates.
2. A _____________________ is a crack or break in the earth’s crust.
3. _______________________ is a fine, yellowish-brown topsoil made up of particles of silt and clay,
usually carried by the wind.
4. ________________________ is molten rock that is pushed up from the earth’s mantle.
5. The _____________________ is the thick middle layer of the earth’s interior structure, consisting of
dense, hot rock.
6. ________________________________ is the theory that the continents were once joined and then
slowly drifted apart.
7._______________________________ refers to chemical or physical processes, such as freezing, that
break down rocks.
8. A ______________________ a bend in layers of rock, sometimes caused by plate movement.
9. _______________________ refers to piles of rocky debris left by melting glaciers.
10. A ____________________ is a large body of ice that moves across the surface of the earth.
11. ______________________is a process by which new land is created when sea plates pull apart and
magma wells up between the plates.
12. ______________________ is a slow process in which a sea plate slides under a continental plate,
creating debris that can cause continents to grow outward.
13. _______________________ is the wearing away of the earth’s surface by wind, flowing water, or
14. ______________________ is the term scientists use to describe the activities of continental drift and
magma flow which create many of Earth’s physical features.