Vocabulary
This term is the reason your attic is warmer than your basement.
What is convection?
This layer is divided into three parts (the top is solid, the middle is liquid and the bottom is solid)
What is the mantle?
These are the result of the melting of a plate that has been subducted into the mantle.
What are volcanoes / volcanic island arcs?
Earthquakes and Volcanoes are usually located in relation to these
What is a plate boundary
The Himalayan mountains are the result of a ___________________________ boundary.
What is convergent boundary?
This action occurs at two of the three types of convergent boundaries.
What is subduction?
The terms lithosphere and asthenosphere refer to the layers __________ property.
What is the physical or mechanical property.
These form when two plates collide that are much less dense than the mantle under them
What are mountains
The mid-ocean ridge is an example of a ____________________ boundary
What is a divergent boundary?
This is the mechanism (what causes) the plates to move
What are convection cycles in the asthenosphere?
Plates float on top of the _______________ (it's plastic)
What is the asthenosphere?
The divisions crust, mantle, and core refer to the ___________ of the layer.
What is chemical composition?
These are caused by subduction and are the deepest parts of the ocean
What is a deep ocean trench?
Crust is desroyed at this type of plate boundary.
What is a convergent boundary?
_________________ are a result from the build up of stress at a plate boundary.
What are earthquakes?
The plates are also known as the __________
What is the lithosphere?
The rigid part of the Earth including the crust and the upper mantle
What is the lithosphere?
This is the beginning stages of a brand new ocean
What is a rift valley?
The San Andreas Fault in Southern California is an example of this type of boundary.
What is a transform boundary?
This type of plate boundary is often called "conservative" because crust is neither created or destroyed.
What is a transform boundary?
Although the hottest layer of the Earth, this layer is solid metal
What is the inner core
The Earth's crust is thinnest under the _____________________ and thickest under the _____________________.
What is thinnest under the ocean and thickest under the continents?
A raised line through the ocean where new seafloor is being created
What is the mid-ocean ridge?
The two types of convergent boundaries:
What is subduction (where volcanoes often occur) and collision (where mountains are usually formed)?
Hot air or liquid is ________ than cool air or liquid.
What is less dense?