Earth's Structure
The 3 layers of the Earth
Crust, Mantle, Core
The decayed remains of once-living creatures
Humus
Large rocks are broken in to smaller rocks from physical forces
Physical weathering
This type of fossil is a 3-D structure completely made of rock.
Mold and Cast
Surface of erosion that separates one layer of rock from another
Uncomformity
The 2 layers of the core
Outer and inner core
Rock made from sand, minerals, and other materials laid down by water
Sedimentary rock
Minerals in rock react with air or water, changing their composition.
Chemical weathering
This type of fossilization consists of a thin, filmy residue being deposited, and results in a high level of detail
Carbonization
Belief that sedementary rock formed through a slow process, similar to that which we see today
Uniformitarianism
Rock that behaves like thick syrup-like material
Plastic rock
Rock that changes form due to extreme heat or pressure
Water
When organic material chemically changes into rock
Petrification
Belief that the geological features we see today are a result of processes that took place long ago.
Catastrophism
2 layers of the crust
Continental and Oceanic
Inorganic crystalline substances found naturally in the Earth
Minerals
Large, flat-topped hills surrounded by flatlands.
Mesas
Most fossils are found in ___________________ rock.
sedementary
Unstable atoms
Radioactive atoms
Theory that explains how the lithosphere moves on the asthenosphere.
Plate tectonics
Most of the Earth's sediments have been laid down by ________.
Water
Layers of sediment that can vary in thickness and appearance
An organism gets trapped in resin and is preserved intact
Amber formation
Atom commonly used in dating process, that decays rapidly
Carbon-14