1. Name:_______________________________ Period:___ Date:________________
Dynamic Earth Properties of the Earth's Interior
Base your answers to the following questions on the Inferred Properties of Earth's Interior
diagram below, duplicated from page 10 of the Earth Science Reference Tables.
1. Generally speaking; how does temperature and pressure change within the Earth's interior?
______________________________________
2. The approximate depth of the core-mantle boundary is
______________________________________
3. The actual (observed) temperature at a depth of 3000 km is approximately
______________________________________
4. The actual temperature consistently exceeds the melting point temperature in which Earth
layers?
______________________________________
5. The inferred pressure at the center of the Earth, in millions of atmospheres is approximately
______________________________________
6. What is the density of oceanic crust (in grams per cubic centimeter)?
______________________________________
7. Which Earth layer consists of crust and rigid (uppermost ) mantle?
______________________________________
8. Which are the three subdivisions of the mantle, from top to bottom, based on behavior
(response to stress)?
______________________________________
9. Within which mantle subdivision do we believe the partial melting of ultramafic rocks to be
occurring?
______________________________________
10. The plastic mantle is synonymous with the
______________________________________
11. What is the phase and composition of the inner core?
______________________________________