Continental Drift
What scientist came up with the theory of continental drift?
Who is Alfred Wegener
The Earth's outer shell is broken into large pieces called these.
What are plate tectonics?
This is the Epoch we currently live in.
What is Holocene?
This type of rock forms when magma or lava cools and hardens.
What is Igneous rock?
What is the outer most layer of Earth's Surface?
What is the Crust?
This large supercontinent existed about 300 million years ago before breaking apart.
What is Pangaea?
This man is responsible for the theory of tectonic plates.
Who is Harry Hess?
This era is known as the "Age of Dinosaurs."
This type of rock forms from layers of sediment being compacted and cemented together.
What is Sedimentary rock?
The movement of sediment from one place to another by wind, water, or ice is called this.
What is erosion?
Wegener used these natural landforms, which appear to match up across continents, as evidence for continental drift.
What are Mountain Ranges?
When two plates collide, they form this type of boundary.
What is convergent boundary
The geologic time scale is divided into eons, eras, periods, and these smaller divisions.
What are epochs?
Heat and pressure deep within the Earth can change rocks into this type.
What is metamorphic rock?
The middle layer of our Earth's surface.
What is the mantle?
The movement of Earth's continents is caused by this process in the mantle.
What are convection currents?
The San Andreas Fault in California is an example of this type of plate boundary, where plates slide past each other.
What is a Transform Boundary
These events mark the end of one era and start a new era with new life.
What are extinction events?
This process breaks down rocks into smaller pieces through wind, water, and ice.
What is weathering?
This sits at the very center of our Earth's Surface.
What is the inner core?
Wegener used this evidence to help supports his theory of finding the same animals in different places on Earth.
What is fossil evidence?
This undersea process, where new crust is created as plates move apart, occurs at mid-ocean ridges.
What is sea floor spreading?
This era, which we are currently in, began about 66 million years ago.
What is the Cenozoic Era?
The continuous process of rocks changing from one type to another is called this.
What is the rock cycle?
These under water mountain ranges form where two tectonic plates pull apart.
What are mid-ocean ridges?