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Earth Science U3A

Across
use of water to generate electricity
forming outside, on the surface of Earth's crust
organic material made from plants and animals
breaking-down process that changes the minerals in rock
forming inside, under Earth's crust
formed from non-living materials
an individual particle or grain in sedimentary rock
Down
having a uniform structure or composition
chemical sedimentary rock formed when minerals are left behind by evaporated water
layers or bands found in metamorphic rock
molten rock on Earth's surface
precious, rare, or valuable mineral
how a crystal breaks or splits when stressed