MR. SURRETTE
VAN NUYS HIGH SCHOOL
CHAPTER 2: INTERNAL EARTH
HANDOUT
LAYERS OF THE EARTH
LITHOSPHERIC PLATES
INTEGRATED SCIENCE
SCIENCE DEPARTMENT
MR. SURRETTE
VAN NUYS HIGH SCHOOL
ISOSTASY
THERMAL CONVECTION IN THE MANTLE
SEAFLOOR SPREADING
INTEGRATED SCIENCE
SCIENCE DEPARTMENT
MR. SURRETTE
VAN NUYS HIGH SCHOOL
CHAPTER 2: INTERNAL EARTH
WORKSHEET
1. The __________ is composed of the least dense rocks.
(A) mantle (B) Mohovosic discontinuity (C) core (D) crust
(E) asthenosphere
2. The __________ is composed mostly of iron and nickel.
(A) mantle (B) Mohovosic discontinuity (C) core (D) crust
(E) asthenosphere
3. The majority of the Earth’s mass makes up the:
(A) mantle (B) Mohovosic discontinuity (C) core
(E) asthenosphere
(D) crust
4. The two kinds of crust are __________ and __________:
(A) Mohovosic discontinuity oceanic (B) Mohovisic discontinuity continental
(C) continental mantle (D) oceanic mantle (E) continental oceanic
5. The __________ separates the Earth’s crust and __________ from rocks in the __________.
(A) “Moho” lower mantle upper mantle (B) lower mantle upper mantle “Moho”
(C) upper mantle “Moho” lower mantle (D) upper mantle lower mantle “Moho”
(E) “Moho” upper mantle lower mantle
6. The Earth’s tectonic plates are composed of pieces of the:
(A) crust (B) lithosphere (C) upper mantle (D) lower mantle
(E) asthenosphere
7. The Earth’s tectonic plates float on top of the:
(A) crust (B) lithosphere (C) upper mantle
(E) asthenosphere
(D) lower mantle
8. Less dense continental crust floats higher than more dense oceanic crust. This is an example of:
(A) continental drift (B) tectonic plates (C) convection cells (D) isostasy (E) subduction
9. __________ is the theory that states a super-continent named Pangea broke up into the modern continents.
(A) continental drift (B) tectonic plates (C) convection cells (D) isostasy (E) subduction
10. Continental drift is caused by:
(A) plate tectonics (B) isostasy
(C) paleomagnetism
(D) gravity
(E) thermal convection
11. The study of magnetic particles on the bottom of the ocean floor is called:
(A) isostasy (B) plate tectonics (C) paleomagnetism (D) thermal convection
12. An area of intense seafloor spreading is called:
(A) San Andreas fault (B) Mid-Atlantic ridge (C) divergent rift
(E) convergent boundary
INTEGRATED SCIENCE
(E) sonar
(D) transform fault
SCIENCE DEPARTMENT
MR. SURRETTE
VAN NUYS HIGH SCHOOL
13. Two plates move away from each other at __________ boundaries.
(A) divergent (B) lateral (C) convergent (D) transform (E) isostatic
14. Two plates move toward each other __________ boundaries.
(A) divergent (B) lateral (C) convergent (D) transform (E) isostatic
15. Two plates slide parallel to each other at __________ boundaries.
(A) divergent (B) lateral (C) convergent (D) transform (E) isostatic
16. __________ occur when the lithosphere of the continent bulges upward and is stretch sideways:
(A) Subduction zones (B) Transform boundaries (C) Oceanic ridges (D) Mountains
(E) Rift valleys
17. In some places two oceanic plates converge. One plate stays at the surface and the other plate dives down
beneath it. This process is called:
(A) convergence (B) subduction (C) divergence (D) transformation (E) rift formation
18. Sometimes down-going oceanic plates drag below continental plates. This forms:
(A) mountains (B) rift valleys (C) deep ocean trenches (D) Mid-Atlantic ridges
(E) suture zones
19. Two continents that collide may form a:
(A) suture zone (B) rift valley (C) Mid-Atlantic ridge
(E) transform boundary
(D) deep ocean trench
20. The San Andreas fault is a __________ boundary.
(A) divergent (B) lateral (C) convergent (D) transform
INTEGRATED SCIENCE
(E) isostatic
SCIENCE DEPARTMENT