1
geology
the study of Earth's formation and structure
2
rock cycle
the process of rock formation and recycling
3
superposition
the principle that states that in layers of sedimentary rocks the lowest layers were the earliest to be deposited
4
relative dating
a method of sequencing events in the order in which they happened
5
paleontologist
a scientist who studies fossils
6
Pangaea
an ancient supercontinent that broke apart to form today's continents
7
plate tectonics
a theory that describes how the continents move
8
lithospheric plates
giant pieces of solid rock on Earth's surface