Download Science chapter 10 study guide (1)

Science Study Guide
Plate Tectonics chapter 10
1. Alfred Wegner, came up with the theory of continental drift that said
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2. The giant landmass was called _______________________. It existed ____________ years ago.
3. The four pieces of evidence for continental drift are:
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4. What was wrong with Wegener theory?
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5. _______________________ proposed the theory of sea floor spreading. During sea floor
spreading __________ rises and cools to make new ocean floor.
6. Wegner’s continental drift theory expanded into a theory known as ______________________.
According to this theory, the uppermost _________ and crust are known as the
___________________________. The lithosphere is on top of another layer known as the
_______________________________. The _____________________________ is what scientists
believe allows the plates to move.
7. There are _____________ lithospheric plates that are always in motion.
8. The three types of plate boundaries are ___________________________,
____________________________, and ______________________________.
Label each below.
9. Describe what is happening in each picture.
10. There are three types of convergent plate boundaries. Name the three and tells what happens at
each:
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11. The ________________________________ is a long, narrow zone where one lithospheric plate
goes under another.
12. Label and explain each picture.
13. The procedure of finding out the age of rocks and minerals is called
___________________________________________. From this, we know that the youngest island
in the Hawaiian Island chain is _________________________.
14. Hawaii is an example of a ______________________. A hot spot is a concentration of heat in
the mantle that makes magma come out onto Earth’s surface.
15. Hot spots can be used to figure out the direction of ___________________________________.
16. Scientists think that __________________ is the main reason for plate movement. Most scientists
think plates move as convection currents in the ________________ circulate.
17. ____________________ makes up most of the continental crust, while __________________
makes up most of the oceanic crust.
18. Label the layers and include a fact about each.
19. How does an echo sounder work and what does it show us?
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20. _____________________________________ are geyser-like structures that can occur
when sea water flows through hot volcanic rock.
Label the picture.