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Plates
Rock Cycle
Inside the Earth
Weathering and Erosion
100
What is the theory that the Earth's surface is covered by large crustal plates that are constantly in motion?
Plate tectonics
100
True or False: Rocks are constantly changing?
True
100
What is the innermost layer of the Earth?
Inner core
100
What process occurs when physical forces such as temperature change, ice, and growing roots break down rocks
Physical Weathering
200
What kind of plate movement causes earthquakes?
Transform
200
What kind of rock is formed by the cooling of magma?
Igneous rock
200
Which is the thickest layer of the Earth?
Mantle
200
What is the process caused by chemical reactions between minerals in rocks, air, and water?
Chemical weathering
300
What kind of plate movement forms volcanoes?
Convergent plates
300
What kind of rock is formed by intense pressure and heat?
Metamorphic rock
300
What is the coolest layer of the Earth?
Crust
300
What is the process by which weathered material is moved from one place to another by wind or water?
Erosion
400
What is the name of the theory that explains why the continents are no longer all touching?
Continental drift
400
What kind of rock has layers of sediment compacted together?
Sedimentary rock
400
Which layer of the earth is the hottest?
Inner core
400
Natural Bridge was formed by running water flowing underneath the bridge. What is this an example of?
Physical weathering
500
How do the plates move?
The Earth's heat energy causes movement of magma in the mantle layer. Plates move slowly about the Earth's surface, driven by that heat.
500
When rocks melt, what do they become?
Magma
500
What is the thinnest layer of the Earth?
crust
500
A piece of marble has had considerable damage due to acid rain. What is this an example of?
Chemical weathering - acid rain reacts with the marble