Earth's Compositional Layers
They are a group of layers that are divided based on chemical composition.
What are Earth's compositional layers?
Layers that are divided due to physical composition and how different parts of Earth move.
What are Earth's physical layers?
The study of tectonic plates.
What is plate tectonics?
A ground movement that occurs when blocks of rock in Earth move suddenly and release energy.
What is an earthquake?
Any place where gas, ash, or melted rock come out of the ground.
What is a volcano?
The thin outer layer of Earth.
What is the crust?
It is the crust and outer mantle. This layer is broken into tectonic plates.
What is the lithospere?
A place where two plates go into each other and form a mountain. The Himalayas are a good example of this.
What is a convergent boundary?
A place within Earth along a fault at which the first motion of an earthquake occurs.
What is a focus?
The resistance of a liquid material to flow.
What is viscosity?
The middle layer of slow flowing rock between the crust and the core.
What is the mantle?
The layer of soft mantle that the tectonic plates move on?
What is the asthenosphere?
A boundary at which two plates move apart from each other causing mid-ocean ridges and faults.
What is a divergent boundary?
A point on Earth's crust above the focus.
What is an epicenter?
They form at plate boundaries.
Where do volcanoes form?
The densest layer of Earth that is really hot and is at Earth's center.
What is the core?
The liquid layer of the core.
What is the outer core?
A place where two plates slide past each other horizontally. This causes earthquakes and faults.
What is a transform boundary?
A series of long waves that travel at up to 300 km/h.
What is a tsunami?
A location where a column of mantle plume, hot mantle rock, rises through the asthenosphere.
What is a hot spot?