Geology Review Assignment
1.
Name: ________________________
Name five facts that are used by scientists as evidence for continental drift. (pg.506-509)
a)___________________________________________________________________
b)___________________________________________________________________
c)___________________________________________________________________
d)___________________________________________________________________
e)___________________________________________________________________
2. What is the name that Alfred Wegner gave to the supercontinent that split to become the continents
we have today? _______________________ (pg. 507)
3. Define the following: (pg. 511 -512)
a) magnetic reversal:
b) magnetic striping:
c) sea floor spreading:
4. Why do spreading ridges have new rock at the top of the ridge and older rock to the sides? (pg. 512)
5. Draw the earth. Label the inner core, outer core, mantle, and crust. Also label the lithosphere and
asthenosphere. (pg.519-20)
6. Indicate which layer of the earth the following describe. (pg.519)
a) It is from 10-70km thick and is made of granite or basalt rock. ________________
b) It is 1200km thick, is made or solid iron and nickel. _________________________
c) It is 2300km thick, is made of liquid iron and nickel. ________________________
d) It is 2900 km thick, is made of magnesium and iron. It is part molten and part solid. It
contains the lithosphere and the asthenosphere. ________________________
7. Which two layers of the earth make the tectonic plates? _________________ and
______________________________. (pg.518)
8. Where do the convection currents (due to heat from the core and radioactive elements) that move
the tectonic plates occur? _________________________________. (pg.520)
9. Match the following types of tectonic plate boundary types with the descriptions.
Choice: Diverging, Transform, Converging ( o+o and o+c), Converging (c+c)
(pg. 523-526)
a) When two plates move away from each other. This causes rift volcanoes, ocean ridges, and rift
valleys. ____________________________
b) When two plates move together and one subducts under the other. This causes composite
volcanoes, mountain building, earthquakes, and trenches. _______________________
c) When two plates slide past each other. This causes earthquakes, and faults.
________________________.
d) When two plates move together and form large mountain ranges. ______________________
10. What is the difference between the focus and the epicentre of an earthquake? (pg.528)
11. The three types of earthquake waves are: P waves, S waves, and L waves. (pg.529)
a) Which is the fastest? _________________
b) Which only travels in the crust? __________________
c) Which travels in solids, liquids and gases? ______________________
d) Which body wave travels only in solids? ________________________
e) Which is the slowest? _______________________
12. What is a seismometer? (pg.530)
13. Write the type of volcano on the line. (Choices: Composite volcano, Rift eruption volcano, or Shield
volcano) (pg.532-534)
a) Occurs at a converging tectonic plate boundary in a subduction zone and is cone shaped:
_____________________
b) Occurs over hot spots in ocean basins and is large flat and oval: ______________________
c) Occurs at diverging plate boundaries such as rifts or ridges: ________________________