earths layers
How many layers are there
4
Whats a hot spot
Heated rock rises to make volcanoe
What is intrusion
Magma forced into old rock and cools
Name three thpes of erosion
Wind, ice and water erosion
Name earths layers
Mantel, crust, inner core, outer core.
Supercontinent made of all the continents is called
Pangea
What do scientist do to ice cores
Drill through the core to gain info about the earth
Name the three types of rivers
Young river, mature river, old river
Put the earths layers in order
Crust, mantle, outer core, inner core
Who proposed the theory of continental drift
Alfre Wegener
What’s a fault
A crack in the earths crust
What are the two kinds of glaciers
Valley and continental glaciers
What is the tools scientist use to detect movement in the ground
Seismograph
whats a mid ocean ridge
Underwater mountains
What extrusion
When magma cools on the surface of the earth
What’s deflation
Wind carrying away loose sediment
Name the two kinds of waves in the earth
P waves and S waves
Name all the boundaries
Transform, convergent, and divergent
Whats a half life
A way to describe a rate of decay.
Where does wind erosion most occur
In dry areas