Geologic Time Scale Crossword Puzzle

Download and print this Geologic Time Scale crossword puzzle.

PDF will include puzzle sheet and the answer key.

INDEX FOSSIL : A fossil that is useful for dating and correlating the strata in which it is found.
PALEOZOIC ERA : It is the longest of the Phanerozoic eras, lasting from 540 to 250 million years ago.
SEDIMENTARY ROCK : Types of rock that are formed by the deposition and subsequent cementation of mineral or organic particles on the floor of oceans or other bodies of water at the Earth's surface.
GEOLOGIC TIMESCALE : A system of chronological dating that relates geological strata to time.
EON : An indefinite and very long period of time, often a period exaggerated for humorous or rhetorical effect.
CATASTROPHISM : The theory that changes in the earth's crust during geological history have resulted chiefly from sudden violent and unusual events.
MESOZOIC ERA : An interval of geological time from about 252 to 66 million years ago.
EPOCH : A period of time in history or a person's life, typically one marked by notable events or particular characteristics.
MOLD FOSSIL : A fossil formed when an animal, plant, or other organism dies and is covered by sediment, its flesh decays and bones deteriorate due to chemical reactions, and a cavity remains below the ground surface.
IMPRINT FOSSIL : Formed from an organism moving in some way, leaving behind a trace or track.
ERAS : A long and distinct period of history with a particular feature or characteristic.
PRECAMBRIAN : Earliest part of Earth's history, set before the current Phanerozoic Eon.
UNIFORM ITARIANISM : The theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes.
JAMES HUTTON : He originated the theory of uniformitarianism.
CENOZOIC ERA : About 65 million years, from the end of the Cretaceous Period and the extinction of non-avian dinosaurs to the present
CHARLES LYELL : 1st Baronet, FRS was a Scottish geologist who popularised the revolutionary work of James Hutton
CAST FOSSIL : A fossil formed when an animal, plant, or other organism dies, its flesh decays and bones deteriorate due to chemical reactions.

Edit Print PDF - Letter PDF - A4

Related puzzles:

More Geology Crossword Puzzles

Volcanoes Review
Water and Rock Cycle
Mineralogy
Structure of the Earth
Different Kinds of Rock

Browse all Geology Puzzles

QUESTIONS LIST:

index fossil : a fossil that is useful for dating and correlating the strata in which it is found.
paleozoic era : it is the longest of the phanerozoic eras, lasting from 540 to 250 million years ago.
sedimentary rock : types of rock that are formed by the deposition and subsequent cementation of mineral or organic particles on the floor of oceans or other bodies of water at the earth's surface.
geologic timescale : a system of chronological dating that relates geological strata to time.
eon : an indefinite and very long period of time, often a period exaggerated for humorous or rhetorical effect.
catastrophism : the theory that changes in the earth's crust during geological history have resulted chiefly from sudden violent and unusual events.
mesozoic era : an interval of geological time from about 252 to 66 million years ago.
epoch : a period of time in history or a person's life, typically one marked by notable events or particular characteristics.
mold fossil : a fossil formed when an animal, plant, or other organism dies and is covered by sediment, its flesh decays and bones deteriorate due to chemical reactions, and a cavity remains below the ground surface.
imprint fossil : formed from an organism moving in some way, leaving behind a trace or track.
eras : a long and distinct period of history with a particular feature or characteristic.
precambrian : earliest part of earth's history, set before the current phanerozoic eon.
uniform itarianism : the theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes.
james hutton : he originated the theory of uniformitarianism.
cenozoic era : about 65 million years, from the end of the cretaceous period and the extinction of non-avian dinosaurs to the present
charles lyell : 1st baronet, frs was a scottish geologist who popularised the revolutionary work of james hutton
cast fossil : a fossil formed when an animal, plant, or other organism dies, its flesh decays and bones deteriorate due to chemical reactions.