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Science Review

5/30/14

QuestionAnswer
What is one form of landmass evidence Alfred Wegener had for continental drift? Mountain ranges in South America and South Africa line up & European coal fields match with similar coal fields in North America.
What is one form of fossil evidence Alfred Wegener had for continental drift? Fossils of the plant Glossopteris found in rocks on widely separated landmasses.
What is one form of climate evidence Alfred Wegener had for continental drift? Fossils of tropical plants found near Arctic Ocean & Scratches in rocks made by glaciers found in South Africa.
What is the hypothesis of Continental Drift? Continental Drift is when the continents of earth slowly move over earth's surface. This happened in a great amount of time; causing the super-continent Pangaea to slip apart.
Why did most scientist reject Wegener? Most scientist didn't believe in Wegener because he didn't know how Pangaea slip apart.
What was the Super-continent called? The super-continent is called Pangaea.
Fossil definition is any trace of an ancient organism preserved in rock.
What are the three types of plate boundaries? Divergent, convergent, and transform.
What happens when two continental crust plates collide? When two continental crust collide it causes mountains to form.
What happens when two oceanic crust plates collide? When two oceanic crust collide it causes magma to come up from the earth and creates new crust.
What happens when a continental crust plate and oceanic crust plate collide? When this happens the oceanic crust dives under the continental crust because it is denser causing a trench is create.
What is the force that caused Pangaea to slip apart? Continental drift caused Pangaea to break apart.
What is a scientific theory? is a well-tested concept that explains a wide range of observations.
What are the breaks in earth's crust called? A break in earth's crust is called a fault.
What is the lithosphere broken into several parts called? Plates
What is a rift? A rift is a deep valley on land that forms along a divergent boundary.
What is plate tectonics? Plate tectonics is the geological theory that states that pieces of Earth's crust are in constant slow motion.
What are the four main layers of the Earth? The crust,mantle,outer core, and inner core.
What is the difference between oceanic crust & continental crust? Oceanic crust is denser than continental crust, contains basalt, and is beneath the ocean. Continental Crust make the continents, contains granite, and is thicker than oceanic crust.
What are seismic waves? Seismic waves are vibrations that go through earth. They carry the energy released during an earthquake.
What is the difference between Anthenosphere & lithosphere Anthenosphere is the soft layer of the mantle and isn't rigid. Lithosphere is the rigid layer of the mantle and floats on top of Athenosphere.
What are constructive & destructive forces? Constructive forces build up mountains and landmasses. Destructive forces break down landmasses.
Created by: 16arocourt
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