Vocabulary
The outermost layer of the Earth
What is the crust
Features on Earth's surface are often found at these
What is a plate boundary
A number of rigid, but moving, pieces of Earth's surface
What are tectonic plates.
This piece of evidence matched these once living things across different continents.
What are fossils
The mid-atlantic ridge is an example of a ____________________ boundary.
What is divergent boundary
Hot air or liquid is less ________________ than cool air or liquid
What is dense
Plates float on top of the _______________________.
What is the mantle
Evidence of tropical plants were found on this now cold continent
What is Antarctica
Name four of the major plates
What is any of the following:
North American plate, South American plate, Eurasian Plate, Indo-australian plate, African plate, Antarctica plate
Displacement occurs at this boundary type.
What is a transform boundary
This type of heat transfer is occurring in the mantle.
What is convection
Continental Drift Theory was not accepted because it did not explain this
What is how the continents moved
The three types of convergent boundaries
What is Continental-Continental, Oceanic-Oceanic, Continental-Oceanic
Volcanic islands (arcs) are created at this boundary type.
What is a convergent boundary
When plates move apart and allow magma to flow up and harden creating new crust
What is seafloor spreading
This type of heat transfer heats the surface of the crust
What is radiation
This is the name of the supercontinent that existed 250 million years ago.
What is Pangaea
This technology was used to map the bottom of the ocean and discovered the mid-ocean ridge in the Atlantic Ocean.
What is sonar / submarines