Earth History Crossword

Which period ended 570 million years ago?
What was the first geological period in the Paleozoic Era
which scientific law says that the youngest of rocks layer is on top and the oldest is n the botom
which method to determine the age of earth materials uses radioactive elements
the determination of the age of an object with reference to a specific time scale is
The arrangement of artifacts to determine the age of that object
the largest division of geologic time
a period of time marked by a specific Characteristic
a point of time distinguished by a particular event
A large specified portion of time
a molten fluid rock that comes out of a volcano
A molten material beneath the earths crust
A vent in the earths crust through which lava
The two sub-layers of the earth's crust that move and float
the surface of the earth is broken up into ___________
a planar fracture
the study of earth is ____________
the process of witch the surface of the earth is being eroded
the chemical processes that cause exposed rock to decompose
organic matter deposited by water,
the state of being deposited or precipitated
lift up, raise or elevate.
a process in which new ocean floor is created
any of several seismically active submarine mountain
Rock that has formed through the deposition of sediment
Rocks formed by the solidifying of molten materials.
Rock that was once one kind of rock but has changed to another under the influence of heat
a process by which rocks are created
the outer layer of the earth
an remaining of a living thing as a skeleton or imprint
a widely distributed fossil