Earth Science
The process of wind water and ice putting sown sediments they carry is called?
deposition
What is the driving force behind most erosion?
Gravity
_______ are small particles of rocks that form when rock breaks down
What is sediments
________ is a break in the rock that makes up Earth's crust
What is a fault
What is the name of the scientist that first proposed the idea of seafloor spreading?
Harry Hess
About __________ percent of Earth's surface is coverd in water.
What is 75%
If a sedimentary rock in a dry place has a fish fossil in its deep layers it means this was covering this area once.
sea or ocean
This is the process that moves weathered materials
Erosion
This causes canyons to form.
River Erosion
Earth's layers of earth are ______ (in order)
what is crust, mantle, outer core, & inner core
what breaks down rock by weathering?
What is wind, water, & gravity
A historical sequence of life indicated by fossils found in layers of the earth's crust.
fossil record
Divergent plates are plates that pull apart from each other and this can cause what two events?
earthquakes and mid ocean ridges.
The theory that explains volcanoes, earthquakes, seafloor spreading, and other concepts.
Theory of Plate Tectonics
When weathered rock is picked up and moved it is called
erosion
A technique using half life to determine the age of rocks and fossils.
radioactive dating
Process by which cities grow and develop.
Urbanization
The rapid downhill movement of soil and rock caused by gravity.
landslide
A type of rock found deep underground where heat an pressure cause existing rock to be changed into this kind of rock.
metamorphic rock.
A fossil that is used to determine the age of a rock layer is called a ____________________________
Index fossil
_______ is when the wind/water/glacier drops the material they are eroding
What is deposition
The three categories of rocks
sedimentary, igneous, and metamorphic
True or false: A rock can never be worn down by erosion.
False
When all of the plates and continents were together it was called__________________
Pangea