Type
Crossword
Description

The ______ period contained the early humans on planet earth. neogene
this era contained Cave lions, sabre-toothed cats, and cave bears. cenozoic
The ______ period was the beginning of the Cenozoic era. paleogene
the _____ period happened 444 million years ago. silurian
this era contained dragonflies, reptiles, and lizards. paleozoic
this period is when Pangea Is Born. carboniferous
______ PERIOD HAPPENED 1.6 MILLION YEARS AGO quaternary
the ____ period was the period were mammals roamed earth. triassic
this period is when The first tetrapods formed on earth (known as land animals) devonian
this period contained Small Shelly fauna and Early Cambrian trilobites and echinoderms. cambrian
the ______ period had different dinos like the Triceratops and other different animals. creatacious
the_____ period contained different type of ocean and land animals like amphibians and fish. permian
the _____ period contained Lampreys and hagfish and other type of fish. ordovician
the _____ period contained more lushest type of plant growth and contained dinos like the Brontosaurus, and Allosaurus. jurassic
This era happened over 180 million years ago. mesozoic

Geologic Time Word Search

Type
Word Search
Description

EXTINCTION
ICE AGE
MARINE LIFE
ANTHROPODS
FAUNA
FLORA
VERTEBRATES
CLAY
LIMESTONE
PANGEA
GINGKO
FERN
DINOSAUR
MAMMOTH
CAVE LION
NEOGENE
PALEOGENE
CENOZOIC
CRETACEOUS
JURASSIC
TRIASSIC
MESOZOIC
PERMIAN
CARBONIFEROUS
DEVONIAN
SILURIAN
ORDOVICIAN
CAMBRIAN
PALEOZOIC
HADEAN
ARCHEAN
PROTEROZOIC
PRECAMBRIAN
GEOLOGIC

Geotimeline Crossword

Type
Crossword
Description

explosion of life to present Phanerozoic Eon
eon before Phanerozoic eon Pre-Cambrian Eon
the era we are in now Cenozoic Era
dinosaur era Mesozoic Era
explosion of life Paleozoic Era
first period of Paleozoic Era and animals started appearing in the ocean Cambrian Period
first land plants started appearing Ordovician Period
animals like spiders started to move onto land Silurian Period
the age of the fishes Devonian Period
plant and animals on land were at huge sizes not seen today Carboniferous Period
last period of the Paleozoic Era Permian Period
first period of the Mesozoic Era and dinosaurs were now around Triassic Period
Pangea was starting to break apart Jurassic Period
last period of the Mesozoic Era and dinosaurs became extinct at the end of this period Cretaceous Period
it is the first period of the Cenozoic Era and mammals are starting to be in control Paleogene Period
the Megalodon shark came around and later died during this period Neogene Period
it is the last period of the Cenozoic Era and it is the period we are currently in Quaternary Period
the largest division of geologic time, comprising two or more eras Eon
a system of chronologic notation reckoned from a given date and it is smaller than an eon Era
a space of time between two events or a portion of time and it is smaller than an Era Period

Geological Time Scale Word Search

Type
Word Search
Description

Period
Era
Eon
Quaternary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Pennsylvanian
Mississippian
Devonian
Silurian
Ordovician
Cambrian
Cenozoic
Mesozoic
Paleozoic
Phanerozic
Geological Time Scale

Geologic Time Scale Crossword

Type
Crossword
Description

Of a geologic era within the Phanerozoic eon that comprises the Triassic, Jurassic and Cretaceous periods mesozoic
Of or from the geologic strata above the Permian and below the Jurassic triassic
Of, or relating to the geologic eon from about 2,500 to 570 million years ago; proterozoic
Of or pertaining to the second period of the Mesozoic era, a time still dominated by dinosaurs. jurassic
a system of chronological measurement that relates stratigraphy to time, and is used by geologists, paleontologists, and other earth scientists to describe the timing and relationships between events that have occurred throughout Earth's history. geologictimescale
Relating to the eons before the Phanerozoic precambrian
Of a geologic era within the Phanerozoic eon comprising the Paleogene and Neogene periods cenozoic
of a geologic period within the Paleozoic era; comprises lower, middle and Furongian epochs from about 542 to 490 million years ago cambrian
Of a geologic era within the Phanerozoic eon that comprises the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian periods paleozoic
Million years ago. mya
Billion years ago. bya
a span of time smaller than a period and larger than an age epoch
of a geologic period within the Paleozoic era; comprises the lower, middle and upper Mississippian and lower, middle and upper Pennsylvanian epochs carboniferous
The geologic period within the Mesozoic era that comprises lower and upper epochs cretaceous
Of, or relating to the geologic eon from about 570 million years ago to the present; comprises the Paleozoic, Mesozoic and Cenozoic eras. phanerozoic

Geologic Time Crossword

Type
Crossword
Description

The Hadean, Archean, and Proterozoic eons together. Makes up 90% of the Earth's history. Precambrian Time
Divides Earth's history into intervals of time defined by major events or changes on Earht. Geological Time Scale
Began 540 million years ago as the supercontinent Pannotia was breaking up. Paleozoic Era
The new supercontinent that was forming during the Paleozoic Era. Pangea
Began 250 million years ago after a mass extinction. Mesozoic Era
Creatures that dominated the world during the Mesozoic Era. DInosaurs
Began about 65 million years ago and continues to the present. Cenozoic Era
The Paleozoic, Mesozoic, and Cenozoic eras combined. Phanerozoic Eon
A major division of geological time, subdivided into eras. Eon
A major division of time that is a subdivision of an eon and is itself subdivided into periods. Era

Earth History Crossword

Type
Crossword
Description

relating or denoting to the most recent era Cenozoic
Era comprising of the Triassic, Jurassic, and Cretaceous periods Mesozoic
Largest extinction in Earth's history Permian
Prehistoric period during which stone was widely used StoneAge
Period in Earth's history Eon
A major division of geologic time era
The process of change that produces new life forms over time evolution
All the geologic time before the start of the Cambrian Period in the Paleozoic Era. Precambrian
period characterized by the greatest development, rise of modern insects and flowering plants cretaceous
many sea reptiles;early large dinosaurs; later,flying reptiles, and earliest known birds jurassic
Diverse marine life, including vertebrates; vascular plants Ordovician
Numerous fishes, other sea life; many plants, first trees; wingless insects Devonian
Formation of oceans, atmosphere, and continents; bacteria Archaean
Oldest era; organisms developed hard parts Paleozoic
oldest and longest geologic time period precambrian
subdivisions of eras periods
an extinct terrestrial reptile of the Mesozoic era dinosaur
a cold-blooded vertebrate including snakes and lizards reptile
science of the history of the earth as recorded in rocks geology
record of earths history geologic time scale

Renewable and Nonrenewable Resources Crossword

Type
Crossword
Description

This is a renewable resource that is provided every day by a major part of our solar system. Solar energy
This is a nonrenewable resource that is made up of another energy source. Nuclear Energy
This is a nonrenewable resource that is in the periodic table and makes up another energy resource. Uranium
A nonrenewable resource that takes a very long time to form from decomposing organic matter. Coal
A renewable resource that is created from the burning of sugarcane and/or wood. Biomass
A nonrenewable resource that was formed from tiny sea animals and plants millions of years ago. Propane
A renewable resource that is made from rotting plant material. Methane
A nonrenewable resource that is made from heat in the Earth. Geothermal
This is a renewable resource that is made from the differences in air pressure. Wind
A fossil fuel that is nonrenewable and is formed for over millions of years. Natural Gas

Geologic Time Scale Crossword

Type
Crossword
Description

The name of an extinction that happened during the Phanerozoic eon Cretaceous
This eon lasted from 542 million years ago to the present Phanerozoic
The eon where the formation of Earth's core happened Hadean
The eon where the first sign of unicellular bacteria took place Achean
During this eon, the "Snow Baller" took place Proterozoic
A major event that occurred during the Proterozoic eon Snow Baller
A length or portion of time Period
A major division of time that is a subdivision of an eon and is itself subdivided into periods Era
A major division of geological time, subdivided into eras Eon
The beginning of a distinctive period in the history of someone or something Epoch
The name of an explosion that happened during the Phanerozoic eon Cambrian
The relatively thin part of the earth's crust that underlies the ocean basins Oceanic Crust
A supposition or a system of ideas intended to explain something Theory
The super continent that Scientist hypothesize that formed during the Proterozoic eon Rodinia
Example: Pangaea, Gondwana, and Laurasia Super Continents

Prehistoric Puzzle Crossword

Type
Crossword
Description

Study of fossils of animal and plant life that existed in remote geological times Paleontology
Fossils used for age dating and correlating Cenozoic era Index Fossils
The bryozoans and foraminifers appeared during this period Cambrian
The first vertebrates and earliest corals appeared during this period Ordovician
First air breathing animal fossils were found in Scandinavia and Great Britain during this period Silurian
The seas contained echinoderms and foraminifers during this period Carboniferous
The disappearance of many forms of marine animals and the rapid spread of reptiles appeared during this period Permian
This era is often called the Age of Reptiles Mesozoic
The dinosaur first appeared during this era about 255 million years ago Triassic
A four-footed armored dinosaur during the Jurassic Period Stegosaurus
The triceratops was added to the tribe of dinosaurs during this period Cretaceous
The titanotheres and the oreodonts existed during this period Oligocene
This period is regarded by zoologists as the Age of Mammals Pliocene
The process of comparing the ages of rock layers Relative Dating
Uses special scientific instruments to determine the actual age of the rock Absolute Dating
An undisturbed layer closest to the surface is youngest and each layer below it is older Law of Superposition
Used to determine the age of igneous rocks Radiometric Dating
Rocks breaking down by wind, water, rain and ice Weathering
The removal of weathered rock from it's original place Erosion
Used to determine what the environment of an era was like long ago Fossils

Geological Time Scale Word Search

Type
Word Search
Description

Archean Eon
Cambrian
Cenozoic Era
Cretaceous
Devonian
Hadean Eon
Jurassic
Mesozoic Era
Mississippian
Neogene
Ordovician
Paleogene
Paleozoic Era
Pennsylvanian
Permian
Phanerozoic Eon
Proterozoic Eon
Quaternary
Silurian
Triassic