| A | B |
|---|
| Rock that forms from the cooling of magma or lava | Igneous |
| Igneous rock that formed from lava that erupted onto Earth's surface | Extrusive rock |
| Igneous rock that formed from magma cooling inside Earth's crust | Intrusive rock |
| A sedimentary rock formed when rock fragments are squeezed together | Clastic rock |
| A sedimentary rock that is formed from the remains of plants and animals | Organic rock |
| Rock that forms when an existing rock is changed because of heat and/or pressure | Metamorphic |
| A series of processes that continuously changes rock from one kind to another | Rock cycle |
| A rock that contains tiny, connected air spaces | Permeable |
| Bedrock | R Horizon |
| Parent Material | C Horizon |
| Subsoil | B Horizon |
| Topsoil | A Horizon |
| Organic Layer/Litter | O Horizon |
| The movement of rock particles by ice, wind, water, or gravity | Erosion |
| The most abundant intrusive rock | Granite |
| Coral is a form of this organic rock | Limestone |
| The grinding away of rock by other rock particles | Abrasion |
| The term that describes the management of soil to prevent its destruction | Soil Conservation |
| The practice of plowing fields along the curve of a slope | Contour plowing |
| A type of landfill designed to hold municipal solid waste safely | Sanitary landfill |
| Disposal of solid waste by burning | Incineration |
| The thick mass of grass roots that helps hold prairie soil in place | Sod |
| Soil made up of about equal parts of clay, sand, and silt | Loam |
| The decayed organic material in soil | Humus |
| The solid layer of rock beneath the surface | Bedrock |
| A layer of soil that differs in color and texture from the layers above or below it | Soil horizon |
| A crumbly, dark brown soil composed of humus, clay, and other minerals | Topsoil |
| The organisms that break the remains of dead organisms into smaller pieces and digest them | Decomposers |
