Earth Layers
What layer is the largest?
mantle
What is a tectonic plate?
plates underground
What are faults
Break in the earths crust
What are the 4 agents of erosion?
Water, ice, wind, gravity
What is the smallest layer?
crust
Where does heated rock rise?
Hot Spot
What are index fossils
Another test to determine the age of rocks
The 3 types of rivers
Old river, mature river, young river
How many layers are there?
5
What are the 3 boundaries?
Convergent, divergent, transform
Opposite of intrusion
Extrusion
The 4 main gravity erosion things
Landslides, mudflows, slump, creep
An instrument used to record movement
Seismograph
How many tectonic plates are there? (Major plates)
7
What is unconformity
When a new rock layer meets a old rock layer
What is abrasion
Sand grains wear away rocks
What is the newest layers name?
Innermost inner core (or innermost core)
What tectonic plate are we under?
North American Tectonic Plate
What are ice cores
One way glaciers cause erosion
Water seeps into rock cracks and refracts causing rocks to break apart
how did Timmothy die
car crash