Science Crossword: Earth's Past

theory that earth changes fast
remains preserved in rock
magmatic rock
a theory explaining the structure of the earth's crust and plate
theory that earth changes slowly
the scientific study of life that existed
a model that describes the formation, breakdown, and reformation of a rock as a result of sedimentary, igneous, and metamorphic processes
Rock that has formed through the deposition and solidification of sediment,
a type of rock that has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase
the process of eroding or being eroded by wind, water, or other natural agents
a crack where two or more of earth's plates collide
surface of contact between two groups of unconformable strata
the principle that in any sequence of sedimentary rocks which has not been disturbed, the oldest strata lie at the bottom and the youngest at the top.