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Rocks

5th grade

TermDefinition
4.6 billion years old the approximate age of Earth
sedimentary rock rock formed by layers of sediment cemented together
igneous rock rock formed from melted/cooled lava and magma
metamorphic rock rock changed by heat and pressure
fossils provide information and conditions of the past
crust, mantle, outer core, and inner core the four layers of Earth
convergent boundaries tectonic plates that move together
divergent boundaries tectonic plates that move apart
transform boundaries (strike-slip or sliding boundaries) tectonic plates that slip past each other horizontally
weathering the breaking down of rocks
erosion the movement of sediments by water and wind
deposition sediments being deposited in new locations
sediments broken down pieces of rock
Created by: jrt66
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