Download Plate tectonics, earthquakes, and volcanoes 1. Hypothesis that

Plate tectonics, earthquakes, and volcanoes
1. Hypothesis that states that the continents have moved around the earth into their present positions.
2. The boundary between two tectonics plates that are moving away from each other.
3. The driving force in plate tectonics in which lava from the mantle rises to the lithosphere, moves
horizontally, cools and sinks back to the mantle.
4. The German scientist who proposed the Continental Drift Theory.
5. The plastic like layer below the lithosphere in the earth’s mantle.
6. The name given to the large land mass that is believed to have existed before the continents separated.
7. The scientist who developed the hypothesis of hot spots and transform boundaries.
8. This scientist was one of the main proponents of sea floor spreading.
9. The place where new sea floor forms, and resembles and underwater mountain range
10. The boundary between two tectonic plates that are moving toward each other.
11. Molten rock beneath the earth’s surface
12. The outer most layer of the earth.
13. The thickest layer of earth that lies between the crust and the outer core, composed mostly of silicon,
iron, magnesium, and oxygen
14. Liquid layer of the earth’s core that surrounds the inner core and is composed of iron and nickel.
15. The theory that the earth’s crust is divided into plates that slowly move around on the mantle.
16. The solid center of the earth which composed of iron and nickel.
17. The area where a dense ocean plate collides with a less dense continental plate and the more dense
ocean plate sinks underneath the continental plate.
18. The theory that magma from the mantle rises to the surface at mid-ocean ridges and cools to from
new ocean floor, pushing the plates way from each other.
19. . This occurs when an explosive volcanic eruption hurls out ash, cinders, and bombs
20. Fine particles of pulverized rock blown from and explosion vent.
21. The term scientist use to describe the time from the formation of the earth until the appearance of
vertebrates in the fossil record
22. The correct order of the units of geologic time from longest period of to shortest period of time
23. The scale by which the magnitude of an earth quake is measured
24. A sea wave that is created by when the seafloor slips after an underwater earth quake.
25. How many seismograph stations are needed to able to pinpoint the location of an earthquakes
epicenter?
26. The place underground where an earthquake originates is known as the:
27. A machine that is used to measure earthquake activity
28. A volcanic depression that forms a result of the collapse of the magma chamber roof
29. A place in the earth’s crust where magma burns through like a blow torch is known as a(example
Hawaii):
30. The measure of the total amount energy released by an earthquake
31. The fastest waves from an earthquake that can travel through solids liquids and gases.
32. Name and briefly describe the three stages of volcanoes
33. Name the three types of volcanoes
34.Name the three types of faults associated with earthquakes. Which type of plate boundary is each
associated with?
35. Magma from volcanoes at convergent boundaries is formed from rock melted by water several miles
beneath the crust. Explain how this water gets to this point several miles beneath the crust and several
miles away from the ocean?