plate boundary types
this type of plate boundary occurs when two tectonic plates move away from each other.
divergant boundary
This process transfers heat through the movement of material in Earth's mantle.
mantle convection
These waves travel through Earth and carry energy released by an earthquake.
molten rock beneath Earth's surface is called magma. When it erupts onto the surface, what is it called?
lava
When two continental plates collide, Earth's crust can crumple, fold, and rise. What type of mountains mainly form this way?
At this type of boundary two tectonic plates move towards each other
convergent boundary
Hot mantle material does this because it is less dens than cooler mantle material
rises
These are the fastest seismic waves and can travel through solids and liquids.
P-waves
These volcanoes are wide with gentle slopes because their runny lava spreads over long distances before cooling. What type of volcano is this?
Shield volcano
When Earth's crust breaks along faults, large blocks can move up or down, forming mountains. What is the name of these mountains?
Fault-block mountains
At this type of boundary two tectonic plates slide past each other
Transform boundary
As mantle material cools it becomes denser and does this.
sinks
These seismic waves cannot travel through liquids.
S-waves
Some volcanoes have thick, sticky magma that traps glasses. Pressure builds up and can cause explosive eruptions. Why does this magma produce explosive eruptions
Thick magma traps glasses, allowing pressure to build up
When magma pushes Earth's crust upward but does not erupt, the land above it can rise into a dome shape. What type of mountain can form?
Dome mountain
When an oceanic plate sinks beneath another plate this process occurs.
subduction
This is the main source of heat that drives convection inside of Earth.
Heat from Earths interior (the core)
These waves travel along Earth's surface and cause the most damage.
Surface waves
Volcanoes normally form at areas where a tectonic plates goes beneath another. When the sinking plate lets out water, it helps melt the mantle. What type of boundary commonly produces these volcanoes.
Convergent boundary
When magma erupts from a volcano and cools over time, layers of hardened lava can build up and form what type of mountain?
volcanic mountains