Earths Layers
What are the main layers of the earth
crust, mantle, core
a fracture on the Earth's surface where rocks have moved due to stress and strain.
fault line (fault)
What are the three kinds of faults
strike slip, normal, reverse
Most volcanoes occur on this
Along plate boundaries
A sudden movement of earths crust is also called
An earthquake
What is the upper layer of the earth's mantle, below the lithosphere
Asthenosphere
The movement of continents over time is called
Continental Drift
What are the three kinds of mountains
folded mountains, volcanic, fault-block
What is the difference between Lava and Magma
Magma is below the surface and Lave is above the surface
The point inside Earth where an earthquake begins
The Focus
The layer below the asthenosphere
The mesosphere
What type of boundary occurs when two plates slide past each other?
Transform
When rocks change shape while under stress
Deformation
What are the three types of volcanoes
Shield, Cinder Cones, Composite
a wave of energy caused by the earth's plates moving (caused by earthquakes and volcanoes)
seismic waves
What is earths outer most layer called
Lithosphere
Plates move toward each other and collide
Convergent boundary
What fold type has the youngest rock layer at the core
Synclines
When lava flows from giant cracks in earth's surface it is called a
Fissure eruption
What is used to measure an earthquake's strength
The Richter scale
What layer of the earth do tectonic plates rest on?
The mantle
Plates move away from each other
Divergent boundary
What fold type has the oldest layer at the core
anticline
a specific area under the rocky outer layer of Earth where magma is hotter than surrounding magma.
Hotspot
How do seismic waves help scientists understand Earth's interior?
Seismic waves reveal structure