Natural Hazards
A naturally occurring event that may negatively affect people and the environment.
natural hazard
Subduction occurs at this type of plate boundary.
convergent
Hot liquid rock under Earth's surface.
magma
The idea that the continents once joined together to form a large landmass and have moved over time.
continental drift
A rock layer that allows groundwater to flow through it and collect.
aquifer
This natural hazard most likely occurs at transform plate boundaries.
earthquake
New lithosphere is mostly created at this type of plate boundary.
divergent
Rock that forms when magma or lava cools and solidifies.
igneous
The name of the single landmass that Alfred Wegener named in his theory of Continental Drift is...
Pangea
The process that describes how one type of rock becomes another.
rock cycle
This natural happens when rock, soil and Earth materials move down a slope.
landslide
Name the types of plate boundaries and tell me what happens at each one.
Convergent: Plates come together
Divergent: Plates move apart
Transform: Plates slide past each other
Most metamorphic rocks form:
Deep underground
This helps the lithospheric plates move around the Earth.
Convection Current
A naturally occurring event that may negatively affect people and the environment
Natural Hazards
Building structures that can withstand ground shaking would help minimize the destruction of this natural distaster.
an earthquake
This is not associated with plate boundaries; this is associated with calderas
Hot Spot
Name the layers of the Earth from the outside in.
Crust
Mantle
Outer Core
Inner Core
Which layer has convection currents and is responsible for the movement of the plates?
Asthenosphere
An opening in Earth’s surface through which lava, gas, and ash escape from magma underground.
Volcano
Which of the following will increase the risk of landslides?
Large amounts of rainfall
An earthquake
Previous landslides in the area
All of the above
All of the above
A deep, narrow depression on the sea floor.
trench
The solid layer of Earth’s crust and upper mantle.
Lithosphere
The same kind of fossils are found in South America and Africa. The same kind of rock layers are found in North America, Europe and Africa. GPS measurements show that Earth's plates are moving at a rate of centimeters per year. These statements provide evidence of this theory.
the theory of plate tectonics
Large underwater volcanic mountain chain.
Mid-Ocean Ridge