The Earth
The main four layers of the Earth.
What is the crust, mantle, inner and outer core?
Type of boundary that shapes the surface by building up mountains and landmasses.
What are convergent boundaries?
The movement of energy from a warmer object to a cooler object.
What is heat transfer?
A person who studies rocks and the Earth's forces.
What is a geologist?
A sudden violent shaking of the ground; can occur at any plate boundary.
What is an Earthquake?
True or false: Earth's inner core is SOLID.
TRUE
Shapes the Earth by breaking down rock by a physical means (ex. Ice wedging)
What is physical weathering?
The transfer of energy through empty space; this is how the sun's energy reaches Earth.
What is radiation?
What the seven land masses are called.
What are continents?
A well tested theory that explains a wide range of observations.
What is a scientific theory?
The layer made up of the crust and upper mantle.
What is the lithosphere.
The boundary that can create rift valleys when two plates move away from each other.
What is a divergent boundary?
The transfer of energy by the movement of a heated fluid; creates a cycle.
What is convection?
The type of crust below the ocean.
What is the oceanic crust?
The theory that states that pieces of the Earth's lithosphere are in constant, slow motion, driven by convection currents in the mantle.
What is the theory of plate tectonics?
This semi-fluid layer can move in convection currents and is responsible for moving the plates.
What is the mantle?
The movement of weathered rock.
What is erosion?
The transfer of energy by direct contact of particles of matter.
What is conduction?
Less dense rock that makes up the continents.
What is continental crust?
What is a subduction zone, and what usually forms here?
One plate goes under another plate, volcanoes form here.
This rigid layer is made up of the crust and upper mantle.
What is the lithosphere?
An area where one plate sinks beneath another plate due to density.
What is a subduction zone?
The forces that combine to set convection currents in motion.
What are the heating and cooling of a fluid, changes in the fluid's density, and gravity?
The lithosphere is broken into these separate sections.
What are plates?
The three types of boundaries and what happens at each
What is are transform boundaries (plates move past each other-earthquakes), divergent boundaries (plates move away from each other- rift valleys, mid-ocean ridges), and convergent boundaries (plates move towards each other--mountains, volcanoes)?