Earth's Layers
Tectonic Plates
Volcanoes
Earthquakes
Weathering & Soil
100
the core
What is the earth's super-hot innermost center?
100
convergent boundary
What is a boundary where the plates push together?
100
lava
What is the molten rock, or magma, that comes out of the top of a volcano?
100
an earthquake
What is the movement of the earth's crust?
100
weathering
What is the process of wearing down and breaking apart of rocks?
200
the crust
What is the earth's cool outermost layer?
200
divergent boundary
What is a boundary where plates pull apart?
200
a dormant volcano
What is a volcano that is temporarily quiet, but could become active again?
200
Tsunami
What is a huge sea wave caused by an earthquake or volcano under the ocean?
200
physical weathering
What is the breaking down of rocks by wind, water, animals, plants, or temperature into smaller rocks?
300
the mantle
What is the plastic-like layer found just below the crust?
300
transform boundary
What is a boundary where plates slide past each other in opposite directions?
300
a vent
What is the opening of a volcano called?
300
Ring of fire
What is the area in the Pacific Ocean where most earthquakes occur?
300
Chemical weathering
What is the process in which rocks are decomposed or dissolved to form new materials?
400
the outer core
What is the dense liquid layer that circles the core?
400
a fault
What is a crack in the earth's plates where movement takes place?
400
magma chamber
What is the place where the magma is contained below a volcano deep within the earth?
400
Pangaea
What is the name of the single landmass that broke apart thousands of years ago forming the continents as we know them today?
400
Acid rain
What is an example of chemical weathering?
500
convection current
What is the circular movement of heated materials as they move to a cooler area?
500
plate techtonics
What is the movement of the continents due to the shifting of the crust?
500
a conduit
What is a passage through which magma flows in a volcano?
500
Seismograph
What is a machine that detects and records the movements of an earthquake?
500
subsoil
What is the middle layer of soil containing loose soil that roots can reach and animals can burrow in?
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