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Earth History Crossword Puzzle

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Earth History

By: Haley Ramsey

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2 Hot fluid or semifluid material below or within the earth’s crust from which lava and other igneous rock is formed by cooling.
3 The remains or impression of a prehistoric organism.
7 The process of eroding or being eroded by wind, water, or other natural agents.
10 A method of dating rocks and minerals using radioactive isotopes.
12 A period of time in history or a person’s life.
13 The process of determining an age on a specified chronology in archaeology and geology.
15 The formation of new areas of oceanic crust.
18 A system of chronological dating that relates geological strata to time.
21 The two sublayers of the earth’s crust (lithosphere) that move, float, and sometimes fracture and whose interaction causes continental drift, earthquakes, volcanoes, mountains, and oceanic trenches.
22 Rock that has formed through the deposition and solidification of sediment , especially sediment transported by water, ice, and wind.
23 The original rock is subjected to very high heat and pressure
27 The first geological time period of the Paleozoic Era.
32 The two sub-layers of the earth's crust (lithosphere) that move
33 A length or portion of time.
1 The science of determining the relative order of past events.
2 A long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with seafloor spreading.
4 The rigid outer part of the earth, considering of the crust and the upper mantle.
5 The earliest 4.06 billion years of Earth’s history and before the current Phanerozoic Eon.
6 A mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth’s crust.
8 Lift up or raise.
9 A basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers.
11 Be broken by a fault or faults.
14 Matter that settles to the bottom of a liquid.
16 Hot molten or semifluid rock erupted from a volcano or fissure.
17 The science that deals with the earth’s physical structure and substance, it’s history, and the processes that act on it.
19 Very long period of time.
20 A long and distinct period of history with a particular feature or characteristic.
24 An idealized cycle of processes undergone by rocks in the earth’s crust, etc.
25 Form into a hard outer layer.
26 Wear away or change the appearance or texture of by long exposure to the air.
28 A rock formed through the cooling and solidification of magma or lava.
29 '
30 A fossil that is useful for dating and correlating the strata in which it is found.
31 The action of deposing someone.
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