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Science: Topic #6

Topic #6- History of Planet Earth

TermDefinition
fossil remains or evidence of plants and animals in minerals
trace fossils impressions such as footprints, burrows, or nests made by once living organisms
key bed a layer of rock that scientists can clearly identify the time in Earth’s period in which it formed
horizontal parallel to Earth’s surface
sample small amount of a material that is used for observation
strata layers of rock
geologist is a scientist that studies the surface of the Earth and what it is made of
rock a solid made up of different types of minerals
organism any living thing (example: plants & animals)
sediment a solid material that is moved and deposited in a new location (ex: rock)
formation the way something is arranged or coming together
Created by: pmccombie
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