Vocabulary
The thinnest layer of the Earth
The crust
Name the different layers of Earth
Crust, mantle (upper and lower), outer core, inner core
Who created the Continental Drift Theory
Alfred Wegener
What is the name of the supercontinent that is believed to have existed millions of years ago?
Pangeae
A number of rigid, but moving, pieces of Earth's surface
Tectonic Plates
What layer is thickest?
The mantle
List the 4 evidences that Wegner used for his Theory of Continental Drift
- Geometric, Fossil, Rock, Climate
What is the name of the mechanism that helped to prove Continental Drift?
Sea Floor Spreading
The theory that all continents are fragments of Pangaea now drifting apart
Continental Drift
Which layer is most liquid?
The outer core
What type of evidence for continental drift is the discovery of tropical plants found in sediment layers of Antarctica?
Fossil evidence
Process that drives the circular motion of the upper mantle
Scientific name for the rigid part of Earth that includes both the crust and the upper mantle
A group of researchers found identical fossils on the coasts of two continents separated by a vast ocean. What might it suggest?
The continents were once joined together.
Hottest layer of Earth that is made of solid metal
The inner core
Which part of Earth's crust will be thickest and thinnest?
Thinnest under the ocean, thickest under large mountain ranges.
The discovery of fossils of tropical plant species in Arctic region rocks suggests what?
The Arctic region once had a tropical climate long ago.