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SJ - Science Chp 7 Rocks & Soil Vocabulary


natural, solid, non-living material made of one or more minerals


natural material that forms from non-living matter


the part of Earth's surface consisting of humus and weathered rock in which plants grow


thing plants need in order to grow

igneous rock

rock that forms when melted earth materials cool and harden

metamorphic rock

rock that forms when existing rock is changed by heat and pressure

sedimentary rock

rock that forms when small pieces of earth materials collect and become bound together


to break down, or rot


soil that contains a mixture of humus and mineral materials of sand, silt, and clay

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