Vocabulary
The thinnest layer of the Earth
What is the crust
There are ______________ main layers of the Earth.
What is four
the ______ sits on top of the asthenosphere
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
A number of rigid, but moving, pieces of Earth's surface
What is tectonic plates.
The thickest layer of the Earth
What is the mantle.
What must happen for mountains to form
what are plates collide with each other
Mountains are more likely to form at these boundaries
What are convergent boundaries
Hot air or liquid is less ________________ than cool air or liquid
What is dense
Plates move when hot _____ in Earth's mantle rotate
What is magma
Plates float on top of the _______________________.
What is the asthenosphere
What are the 3 types of plate boundaries
what are convergent, divergent, and transform
Sea floor spreading occurs at these types of boundaries
What are divergent
_________________ are a result from the build up of stress at a plate boundary.
What is earthquakes
Daily double: States that youngest rocks of ocean floor are at divergent boundaries, moving outward
What is seafloor spreading
The rigid part of the Earth including the crust and the upper mantle (makes up the plates of the Earth)
What is the lithosphere
what is the name of the super continent from millions of years ago
What is pangea
This is the mechanism (what causes) the plates to move
What is convection currents in the mantle
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary
Although the hottest layer of the Earth, this layer is solid metal
What is the inner core
Daily Double: The Earth's crust is thinnest under the _____________________ and thickest under the _____________________.
What is thinnest under the ocean and thickest under the continents.
How fast do tectonic plates move
what is very slowly, only a few centimeters per year
These types of boundaries are where tectonic plates slide past each other
What are transform boundaries
Earthquakes are more likely to occur near ___ boundaries
what are transform