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science 7b mid term

science questions and answers

QuestionAnswer
second longest division of geologic time era
model that describes how rocks slowly change over time rock cycle
fossil used to compare relative ages of fossils index fossils
natural process of laying down sediment on the ground or at the bottom of water deposition
determining the age of an object in years absolute dating
fossil that provides evidence of activities of ancient organism making foot prints, tracks, etc. trace fossil
largest division of geologic time eon
rock that forms from the cooling and solidification of lava at surface extrusive igneous rock
third largest division of geologic time period
the chemical makeup of rock composition
rock that is formed when sediments are compacted and cemented together sedimentary rock
the process by which wind, water, ice, or gravity transports soil and sedments from one location to another erosion
Created by: tp2212
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