Download Earth`s History Test Review

Earth’s History Test Review
Name: _______________ Per: ___
1. Earth's rigid outer layer, consisting of the crust and uppermost mantle, is called the
_________________________
2. What type of landforms can be formed from a continental-continental convergent boundary?
3.
The diagram above illustrates the geologic features that form at the boundary
between two tectonic plates. The boundary between these two plates is BEST described as a:
4. List the main pieces of evidence for plate tectonics.
5. What can occur at a transform boundary?
6. Which type of plate boundary would create a rift valley?
7. What can happen if two oceanic plates converge?
8. What type of zone occurs when one oceanic plate is forced down into the mantle beneath a second plate?
9. A tectonic plate boundary that occurs when two plates grind past each other without the production or
destruction of lithosphere is a __________.
10. The epicenter of an earthquake is located __________.
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11. The place within Earth's crust where the earthquake originated is called the __________.
12. When reading a seismogram, which are the first waves to arrive?
13. What is happening when an earthquake occurs on a convergent plate boundary?
14. What is the minimum number of seismographs needed in order to find the exact location of an
earthquake's epicenter? Why?
15. What is the typical speed of seafloor spreading?
16. What are the ways that mid–ocean ridges provide evidence of sea floor spreading?
17.
The diagram above illustrates the geologic features that form at the
boundary between two tectonic plates. What BEST describes the boundary between the plates?
18. The Aleutian islands off the shore of Alaska are an arc-shaped chain of small volcanic islands called a
volcanic island arc. Which type of convergent boundary process formed these islands?
19. The geological processes that shape Earth's features today ____.
20. In general, the law of superposition states that in an underformed sequence of sedimentary rocks, each
layer is ____.
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21. If the half-life of an unstable isotope is 10,000 years, and only 1/8 of the radioactive parent remains in a
sample, how old is the sample?
22. Atoms with the same atomic number but different mass numbers are called ____.
23. The time it takes for 50% of the nuclei in a radioactive sample to decay to its stable isotope is called
____.
24. Radiometric dating is possible because the rates of decay of radioactive isotopes ____.
25. What is the longest time period
26. The principal of original horizontality states that ________ .
27. An undeformed sedimentary layer is __________ than the layer above and ______ than the layer below.
28. A rock formed with 1,000 atoms of a radioactive parent element, but only contains 250 radioactive
parent atoms today. If the half-life is 1,000,000 years, how old is the rock?
29. Earthquakes occur at what type of plate boundary?
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30. Name all the plate boundaries in the image above.
a. ____________________________
b. ____________________________
c. ____________________________
d. ____________________________
e. ____________________________
f. ____________________________
31. What can you do to prepare for an earthquake?
32. What should you do during an earthquake?
33. Do you agree or disagree with the following statement, explain: The duck and cover drill for
earthquakes is the MOST effective emergency protocol for schools.
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