A | B |
rift valley | A deep valley that forms where two plates move apart. |
Ring of Fire | A major belt of volcanoes that rims the Pacific Ocean |
Sea-floor spreading | The process by which molten material adds new oceanic crust to the ocean floor |
Subduction | The process by which ocean ic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary |
P-Wave | A type of seismic wave that compresses and expands the ground |
S-wave | A wave released from an earthquake that moves solids back and forth. |
Transform boundary | A plate boundary where two plates scrape past each other |
asthenosphere | The soft layer of the mantle on which the lithosphere floats |
conduction | the transfer of heat within a material or between materials that are touching |
convection current | the movement of a fluid caused by differences in temperature |
convergent boundary | a plate boundary where two plates move towards each other |
crust | the layer of rock that forms the Earth's outer surface |
deep-ocean trench | a deep valley along the ocean floor where oceanic crust slowly sinks towards the mantle |
radiation | the transfer of energy through space |
divergent boundary | A plate boundary where two plates move away from each other |
earthquake | the shaking that results from the movement of rock beneath Earth's surface |
epicenter | the point on Earth's surface directly above an earthquake's focus |
focus | the point beneath Earth's surface where rock breaks under stress and causes an earthquake |
Inner Core | A dense sphere of solid iron and nickel at the center of the Earth |
Lithosphere | A rigid layer made up of the uppermost part of the mantle and the crust |
Magma | The molten mixture of rock forming substances in the mantle |
Mantle | The layer of hot rock material between Earth's crust and core |
Mid-ocean Ridge | An undersea mountain chain where new ocean floor is produced;a divergent plate boundary |
Outer core | A layer of liquid iron and nickel that surrounds the inner core of the Earth |
Pangaea | The name of the single landmass that broke apart to make today's continents |
Plate tectonics | The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle |
What does a transfrom boundary form | faultlines and earthquakes |
What does a convergent boundary between continents form? | mountains |
What does a convergent boundary between continental crust and oceanic crust form | deep-ocean trenches and volcanoes |
What does a divergent boundary in the ocean form | mid-ocean ridge |
What does a divergent boundary on land form | rift valley and hot springs |
What are 5 pieces of evidence for Pangea | puzzle pieces, glacier scrapings, plant and animal fossils, mountain range evidence, rock evidence |
Which earthquake wave arrives first? | p waves |
What type of heat transfer works when a fluid heats up becomes less dense and rises? | convection |
Where is there a rift valley on Earth | Africa's Great Rift Valley |
Where is there a mid-ocean ridge on Earth | The Mid ATLANTIC ridge |
Where is there mountain forming at a convergent boundary? | The Himalays in India/Asia |
Why does Iceland have so many hot springs? | The Mid- Atlantic Ridge comes above the water there and is splitting iceland in half. |
What is the difference between a focus and an epicenter? | A focus causes the Earthquake and is underground, the epicenter is the point directly above the focus on the surface. |
Granite | an igneous rock that makes up the continents |
Basalt | an igneous rock that makes up the oceanic crust |
Igneous | a type of rock that forms from cooling magma or lava |
Sedimentary | a type of rock formed from sediment being eroded, deposited, and cemented together. |
The type of rock with layers | Sedimentary |
Metamorphic Rock | a type of rock formed from heat and pressure |
How are rocks classified? | By the way they are formed. |
What are the 4 steps to make Sedimentary rock? | erosion, deposition, compaction, cementation |