Earth's Layers
This is considered the hottest layer of the Earth
The inner core
The name of the supercontinent
Pangaea
These boundary move apart
divergent
This kind of volcanic eruption causes all a lot of destruction and ash in the atmosphere
explosive eruption
Earthquakes occur in which boundary
Transform
This is considered the thinnest layer of the Earth
The crust
This man invented the theory of continental drift
Alfred Wegner
The driving force of plate boundaries are...
convection currents
Gentle oozing of lava is seen in what kind of eruption
non-explosive eruption
What is a seismograph?
Tool used to measure earthquakes
This is the thickest layer of the Earth
Mantle
How long ago were all continents together?
300 million years ago
When boundaries collide they form mountains. These boundaries are called...
Convergent
Volcanoes formed away or far from tectonic plates are in...
hotspots
The magnitude of a earthquake describes the earthquake's...
energy or strength
These two layers are included in the lithosphere
Crust and Upper mantle
These are evidence of continental drift
fossils, rocks, and climate
When does subduction happen
when one boundary is denser than the other
Dense clouds of hot gases from eruptions are called
pyroclastic flow
This wave can not travel through liquid
S wave
The pressure of the center of the Earth in atmospheres
3.5 million atmosphere
On which layer of the Earth do tectonic plates moves?
Mantle
Where are new crust formed?
divergent boundaries
The biggest chain of volcanoes near the Pacific is called
The Ring of Fire
Which wave would reach the seismic station after an earthquake?
P wave