Geologic History
The four geologic eras of Earth
The layer of the earth where mountains and valleys can be found
The supercontinent that combined all of earth's land masses
Pangea
Wind tunnels that connect the ground to the clouds and can cause mass destruction
Tornadoes
This type of rock is formed through immense heat and pressure
Metamorphic Rock
The geologic era in which dinosaurs lived
Mesozoic
The two types of crust
The person credited with establishing the theory of plate tectonics
Alfred Wegener
Like tornadoes, but formed over water, especially in the topics
Hurricane
Sediments are broken down and transported by these processes
Weathering and Erosion
The geologic era humans live in
Cenozoic
The part of the earth in which magma can be found
The idea that Earth's continents move or drift over geologic time is described by this theory
Theory of Continental Drift
Two scales used to measure earthquakes
Richter and Mercalli
Magma cools into this rock
Igneous Rock
The longest geologic era
Precambrian
If you journeyed to the center of the Earth, this is where you'd be
Inner core
Faults
The part of the world where earthquakes and volcanic activity are most common
Cementation is the final step in the process of creating this type of rock
Sedimentary Rock
How long ago the earth formed
4.6 billion years
The liquid layer of the earth made of mostly nickel and iron
Outer Core
The three main kinds of tectonic plate interactions
Transform, Convergent, Divergent
The energy released during an earthquake, that travels through the crust
Seismic Waves
These four forces wear down the landscape
Wind, Rain, Running Water, Ice