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BJU Space/Earth 11

BJU - Space and Earth Science - Chapter 11 (4th edition)

TermDefinition
fossil Any remains or trace of a formerly living organism preserved by natural process
paleontology The study of fossil animals and plants
index fossil A type of fossil that seems to appear reliably in its proper evolutionary and stratigraphic sequence around the world according to old-earth paleontology. They are used to assign ages to rock strata all over the world.
transitional form A fossil of an organism that supposedly shows a step in the evolution from one distinct kind of organism to an organism higher up on the evolutionary tree; also called a missing link
extinction A certain kind of fossil was no longer buried at a given location during the flood
fossil fuel A natural energy source that is believed to have formed from fossilized organisms. The term commonly includes coal, petroleum (oil), and natural gas.
coal A metamorphic, organic sedimentary rock formed from fossilized terrestrial plant matter.
lignite (coal) Dark brown, soft, crumbly coal that is about 30% carbon and includes liquid organic substances; can contain fibrous fossilized plant matter
bituminous (coal) Moderately dense, hard coal that is dark brown to black in color and is about 70% carbon; contains the most energy per gram of any type of coal
anthracite (coal) Densest and hardest form of coal that is very dark and is more than 90% carbon; burns with the hottest and least smoke-filled flame of any form of coal
petroleum Crude oil as taken from the ground; traditionally known as a liquid fossil fuel made of decomposed fossil marine organisms
natural gas A gaseous fuel often found with petroleum; consists mostly of the organic gas methane
Created by: marchscience
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