About 4 billion years ago the planets crashed
into each other that scared the surface at
the time; it is now not visible because of
erosion,oceans, ect.
Geological Time Scale
A scale that helps scientist to help figure out the age
of the Earth and when important dates happened.
Layers of the Earth
The different layers of the Earth from the
inside out. Ex: the core is the innermost
part of the Earth.
Stratigraphy
The order of which the
archaeological remains lay.
Fossil Record
Fossils that have
been grouped
together and
analyzed together.
Relative Dating
The scientific way of determining
the relative date of something.
Absolute Dating
The scientific way of dating something
that is absolutley correct.