Regents Earth Science

John Dewey High School

Mr. Klimetz

Properties of the Earth's Interior

Reading the Earth Science Reference Tables XXII

Answer the following questions based on your interpretation of the Properties of the Earth's Interior

charts of the Earth Science Reference Tables (page 10) as well as your class notes.

1.    Generally speaking, how do temperature and pressure change within Earth's interior?

a.  As depth decreases, pressure and temperature increase.

b.  As depth increases, pressure and temperature decrease.

c.  As depth increases, pressure and temperature increase.

d.  As depth decreases, there is no change in either pressure or temperature. 

2.     The approximate depth of the outer core-mantle boundary is

a.  700 km   b.  2900 km   c.  5200 km   d.  35 km

3.     The actual (observed) temperature at a depth of 3000 km is approximately

a.  7000 degrees C   b.  4000 degrees C   c.  5000 degrees C   d.  6100 degrees C

4.     The actual temperature consistently exceeds the melting point temperature in which Earth layers?

a.  inner core and crust   b.  asthenosphere and outer core

c.  crust and asthenosphere   d.  outer core and inner core

5.     The inferred pressure at the center of the Earth, in millions of atmospheres, is approximately

a.  3.6   b.  3.0   c.  1.5   d.  4.0

6.     Which is the density of oceanic crust (in grams per cubic centimeter)?

a.  3.0   b.  2.7   c.  3.4-4.7   d.  9.0-11.0

7.     Which Earth layer consists of crust and rigid (uppermost) mantle?

a.  asthenosphere   b.  continental crust   c.  oceanic crust   d.  lithosphere

8.     Which are the three subdivisions of mantle, from top to bottom, based upon behavior (response

to stress)?

a.  stiffer mantle-rigid mantle-plastic mantle   b.  rigid mantle-stiffer mantle-plastic mantle

c.  plastic mantle-rigid mantle-stiffer mantle   d.  rigid mantle-plastic mantle-stiffer mantle

9.     Within which mantle subdivision de we believe the partial melting of ultramafic rocks occurs?

a.  stiffer   b. rigid   c.  lithosphere   d.  plastic

10.    The plastic mantle is synonymous with the

a.  asthenosphere   b.  lithosphere   c.  oceanic crust   d.  continental crust

11.    Which is the phase and composition of the inner core?

a.  liquid iron   b.  solid iron   c.  liquid ultramafic rock   d.  solid iron and nickel