Plate Boundaries Review

Boundaries

100

Type of boundary where the plates move apart

Divergent 

200

Type of boundary where the plates move apart.  

Convergent 

300

Type of boundary where plates slide past one another. 

Transform 

400

Idea that Earth's crust is made of large chunks of land that move over time.  

Plate tectonics 

500

A break in a body of rock shown by displacement 

Fault 

Formations

100

Type of boundary that forms mountains:

Convergent 

200

Where one plate get forced under another

Subduction Zone

300

Underwater mountain chain where new sea floor is created.  

Mid-ocean Ridge 

400

Valley formed by the separation of plates

Rift Valley 

500

Soft layer of the Earth where plates move 

Asthenosphere

Layers of the Earth

100

Layer of the Earth made of slid iron and nickel.  Is very hot and spins faster than the rest of the Earth? 

Inner core

200

The thickest layer.  Temperature is at the melting point of rock.  

Mantle 

300

Thinnest and outermost layer.  

Crust

400

Liquid layer of iron and nickel.  Heated by radioactive decay.  

Outer Core

500

Includes the crust and upper part of the mantle.  

Lithosphere

Mismatched

100

Molten rock beneath the Earth's surface

Magma

200

A vent or fissure in the Earth's surface through which magma and gases are expelled

Volcano

300

The shaking that results from the movement of rock beneath Earth's surface.

Earthquake

400

a region of the Earth's mantle where magma is hotter than normal, causing volcanoes to form on the surface

hotspot

500

hot air rises and cold air sinks

convection currents

Density

100

Density=

mass/volume

200

Units for density are what? 

g/cm³

300

V= 20 cm³

Mass=40 g

Density=?

2 g/cm³

400

v= 50 cm³

m= 1 g

D=? 

50 g/cm³

500

v= 100 cm³

m= 4 g

d=? 

25 g/cm³