Download Ch. 8 Vocab Study Guide

Name____________________________Date_____________________Period/teacher_____________________
Chapter 8 Vocabulary Study Guide
1.
Alfred Wegner hypothesized that continents move. What did he call this? __________________________
2. The ________________________ is located directly under the lithosphere. This is a layer of hotter and softer
rock in the mantle.
3. The switch in the Earth’s magnetic field is called: _______________________________________
4. A solid sphere of metal at the Earth’s center: _________________________________
5. This deep valley is formed as tectonic plates move apart and is found along a mid-ocean ridge:
_________________________.
6. What type of boundaries push together? _______________________________
7. This layer of Earth is where we live. ______________________________
8. __________________________ are places where heated rocks rise from the mantle in plumes or columns.
The Hawaiian islands were formed by this.
9. When two plates carrying continental crust push together, this is __________________________________.
10. The ______________________is Earth’s thickest layer and it surrounds the outer core.
11. _________________ means “all lands”. A supercontinent that included all of Earth’s landmasses.
12. The transfer of heat by the movement of material: ____________________________
13. A _______________________________ is a long line of sea-floor mountains where new ocean crust is
formed by volcanic activity.
14. The theory that states that Earth’s lithosphere is made up of huge plates that move over the surface of the
Earth is: _____________________________________________________.
15. ________________________ is the process by which an oceanic tectonic plate sinks under another plate.
16. _______________________________________ occurs where one plate with oceanic curst sinks under
another place is oceanic crust.
17. This boundary is found in the ocean and the plates move apart: ________________________________
18. The ______________________ is the layer of Earth that includes the very top of the mantle.
19. A layer of molten metal that surrounds the Earth’s inner core: ____________________________
20. ________________________________ occurs when oceanic crust sinks under a continental crust.
21. Large moving pieces on which Earth’s lithosphere is broken and carries oceanic and continental
crust:________________________________.
22. The San Andreas Fault is an example of :_______________________________
23. A motion that transfers heat energy to a material: ________________________________
inner core
outer core
mantle
crust
lithosphere
asthenosphere
tectonic plates
continental drift
Pangaea
mid-ocean ridge
convection
convection current
theory of plate tectonics
divergent boundary
convergent boundary
transform boundary
rift valley
magnetic reversal
hot spots
subduction
continental-continental collision
oceanic-oceanic subduction
oceanic-continental subduction