Number your paper 1-19
Give the key word that matches the following definition next to the appropriate number
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A type of fossil consisting of an extremely thin coating of carbon on rock.
A fossil formed when an organism buried in sediment dissolves, leaving a hollow area.
A fossil in which minerals replace all or part of an organism.
The preserved remains or traces of living things.
A type of fossil that provided evidence of the activities or ancient organisms.
A scientist who studies fossils to learn about organisms that lived long ago.
A well-tested concept that explains a wide range of observation.
Describes a type of organism that no longer exists anywhere on Earth.
The type of rock that is made of hardened sediment.
A fossil that is a copy of an organisms shape, formed when minerals seep into a mold
The process by which all the different kinds of living things have changed over time.
A place where an old, eroded rock surface is in contact with newer rock layer.
The age of rock compared to the ages of rock layers
The geologic principle that states that in horizontal layers of sedimentary rock, each layer is
older than the layer above it and younger than the layer below it.
An igneous rock layer formed when lava flows onto Earth’s surface and hardens.
The breakdown of a radioactive element, releasing particles and energy.
An igneous rock layer formed when magma hardens beneath Earth’s surface.
The age of a rock given as the number f years since the rock formed.
An igneous rock layer formed when lava flows onto Earth’s surface and hardens.
Fossil
paleontologist
Petrified fossil
cast
Scientific theory
evolution
Absolute age
law of superposition
Index fossil
radioactive decay
sedimentary rock
mold
carbon film
trace fossil
extinct
relative age
unconformity
intrusion
extrusion