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Science Vocabulary


This is one of the four options for the Geology Homework Packet

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          11 12  
            15 16
19               20        

1.When the ground shakes this is a _____ measured on a seismograph
4.Instruments that measure motions of the ground
5.______ is the movement of the Earth's continents
10.Two plate push together and make mountains
13.The portion of the earth, about 1800 miles thick, between the crust and the core.
14.A theory of global tectonics in which the lithosphere is divided into a number of crustal plates
17.A large underground pool of liquid rock found beneath the surface of the Earth.
18.An opening, or rupture, in a planet's surface or crust, which allows hot magma, volcanic ash and gases to escape from the magma chamber below the surface.
19.The landmass that existed when all continents were joined, from about 300 to 200 million years ago.
20.The thin outer layer of the Earth
21.The solid portion of the earth
2.Places where two plates slide past each other
3.The middle part of the earth (has two parts)
5.Many geologists believe that the mantle "flows" because of _____
6.Two Plates that move apart from each other
7.Waves of energy that travel through the Earth's layers, and are a result of an earthquake
8.The region below the lithosphere,
9.Is the process in which the ocean floor is extended when two plates move apart.
11.The scale is a base-10 logarithmic scale.
12.The study of science
15.Molten rock released by a volcano during an eruption
16.For advancing the theory of continental drift (last name only)

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