Vocabulary
The thinnest layer of the Earth
crust
There are ______________ main layers of the Earth.
four
Created the Continental Drift Theory
Alfred Wegener
Earthquakes and Volcanoes are usually located in relation to these
plate boundary
The Himalayan mountains are the result of a ___________________________ boundary.
convergent boundary
A number of rigid, but moving, pieces of Earth's surface
tectonic plates.
The thickest layer of the Earth
mantle.
What is one piece of evidence that plates have moved over millions of years?
Rock formations
Fossils
The mid-ocean ridge is an example of a ____________________ boundary
divergent boundary
Hot air or liquid is less dense than cool air so hot liquids rise or fall?
Rise
The theory that all continents are fragments of Pangaea now drifting apart
Continental Drift Theory
Plates float on top of the _______________________.
Mantle
Which boundary type can cause earthquakes?
All Three
Name all three boundary types
Convergent
Divergent
Transform
_________________ are a result from the build up of stress at a plate boundary.
earthquakes
States that youngest rocks of ocean floor are at divergin boundaries, moving outward
seafloor spreading
What is the name of the supercontinent
This is the mechanism (what causes) the plates to move
convection in mantle
The San Andreas Fault in California is an example of a ____________________ boundary. They slides past eachother
transform boundary
Although the hottest layer of the Earth, this layer is solid metal
inner core
The two types of convergent boundaries
What is subduction (where volcanoes often occur) and collision (where mountains are usually formed)