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Earth's Evolution through Geologic Time
Chapter 12: Earth's Evolution through Geologic Time Earth Science, Florida Edition
Terms in this set (52)
What plants use to produce oxygen...
That Earth developed under "just right" conditions...
Geologic Time Scale
The time in which geologists use to show how Earth evolved...
When an atom is converted into another atom, releasing enormous amounts of energy in the form of radiation (heat, light, cosmic rays)
An exploding star (or death of a star)
Large rotating cloud of interstellar dust and gas...
Matter collected int the center as a solar nebula contracts...
Clumps that collided and stuck together to form asteroid-sized objects...
Part of Earth's interior; iron rich and at the center of Earth...
The thin, top layer of Earth...
Largest layer of Earth that is located between the core and the crust...
Vast stream of particles from a young active sun...
Highly active stage early in Suns/Stars evolution, during which their solar winds are very intense...
Gasses trapped in the planet's interior are released...
One of the earliest types of bacteria, began to produce oxygen as a by-product of photosynthesis...
Banded Iron Formations
Alternating layers of iron-rich rocks and chert...
Molecules in the atmosphere are bombarded by ultraviolet radiation that rearrange themselves to form this...
Ozone is concentrated above the surface in this layer...
Most abundant chemical sedimentary rock...
The first 4 billion years of Earth's history are encompassed in this span of time...
Large crustal blocks...
Sometimes considered a super-continent in it's own right, comprised mainly of present day South America, Africa, India, Australia, and Antarctica...
Gradually reassemble into new super-continents...
When the super-continent cycle and sea level changes...
Encompasses 542 million years and is divided into 3 eras: Paleozoic, Mesozoic, and Cenozoic
This landmass was located in the tropics where warm and wet conditions led to the formation of vast swamps...
Organic compounds and building blocks of DNA and RNA...
Are known to contain amino acid-like organic compounds...
A group in which single celled bacteria has genetic material (DNA) that is not separated from the rest of the cell by a nucleus
Not actually remains of organisms, but limestone mats built up by lime-accreting bacteria...
The oldest fossils of more advanced organisms, about 2.1 billion years old...
The huge expansion in biodiversity...
More than 600 genera of the mud-burrowing scavengers flourished worldwide...
Adapt to terrestrial environments, had sacks to be filled with air to supplement their "breathing"
One of the largest dinosaurs...
One of the largest carnivorous dinosaurs...
The dinosaur birds that led to the birds we have today...
When almost all animals and plants die out...
Carbon Dioxide traps a portion of the radiation emitted by Earth's surface...
Rare in Earth's crust but found in high portions in stony meteorites...
Large landmasses that contain all or, nearly all, of the existing continents...
Classification of plant which produce sees which are "naked" (unenclosed)
The world's richest storehouse of dinosaur fossils...
Develop within the mother's body for a much longer time period than the marsupials...
Born at a very early stage of development; at birth, the tiny and immature young enter the mother's pouch to suckle and complete their development...
Earth's first crust was probably made of this...
The earliest well-documented super-continent formed during the Proterozoic Eon...
Spanning about 186 million years, this era is divided into 3 periods: the Triassic, the Jurassic, and the Cretaceous...
"Age of the Fishes"
THIS SET IS OFTEN IN FOLDERS WITH...
Earth Science Mid-term; Intro to Earth Science
Geology - Geologic Time
Geologic Time Scale
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