Plate Boundaries 1
_________ are formed when two continental plates converge.
mountains
Plates slide past one another at ____.
transform boundaries
What is the difference between lava and magma?
lava is outside the earth, magma is inside
Where do earthquakes occur
along plate boundaries - transform
What process in the water cycle is driven by the sun?
evaporation
___________ and _____________ are formed when an oceanic and continental plate converge (subduct).
trenches and volcanoes
What process occurs at divergent oceanic boundaries and what is formed?
sea floor spreading - mid ocean ridge is formed
Where can volcanoes form?
convergent subduction boundaries and divergent boundaries and hot spots
The point in Earth's interior where the energy release of an earthquake occurs is the _______.
focus
Name the 4 spheres of Earth
hydro, bio, geo, atmo
The crust and upper mantle make up Earth's ________. This is where the plates are located.
lithosphere
The theory that continents have slowly moved to their current locations is called ____________.
continental drift theory
What is one benefit of a volcanic eruption?
soil becomes enriched with nutrients - other answers too
The most destructive seismic wave are _______.
surface waves
What is weathering and erosion?
weathering breaks rocks down and erosion carries them away
A vast, underwater mountain chain is called a(n) _________.
mid ocean ridge
What makes the tectonic plates move?
convection currents in the magma within the asthenosphere
What is the core of the earth mainly made out of?
iron
A crack in Earth’s lithosphere where one block of rock moves toward, away from, or past another is called a _______.
fault
Where is most of the water of the hydrosphere found?
surface of earth
At an oceanic-oceanic convergent plate boundary, ______________.
a. new crust is created
b. old crust is recycled by subduction
c. old crust is deformed or fractured
d. plates slide past one another
b
What forms when two oceanic plates converge (subduct)?
volcanic arc of islands
Where do hot spot volcanoes form relative to plate boundaries?
in the middle of plate boundaries
Scientists are comparing a size 4 and a size 6 earthquake. How much stronger is the larger earthquake?
100 times
plant roots, ice wedging, abrasion, gravity, burrowing, temperature change