| A | B |
|---|
| Definition of a rock | a solid mixture of organic material and minerals |
| 3 types of rocks | sedimentary, igneous, metamorphic |
| Formation of igneous rock | cooled & hardened lava or magma |
| Formation of sedimentary rock | weathering, erosion, deposition, compaction, and cementation of sediment |
| Formation of metamorphic rock | heat and pressure deep within the earth |
| Definition of mechanical weathering | physical forces break rock into smaller pieces without changing the rock's chemical composition |
| Frost Wedging | Weathering process that involves the constant freezing and thawing of water |
| Definition of chemical weathering | process that changes rock into one or more new compounds |
| Delta | depositional feature formed where stream enters a lake or ocean |
| 3 Factors that affect the rate of weathering of rocks | climate, amount of exposed area, rock characteristics |
| Erosion | the process by which water, ice, wind, or gravity move sediments |
| Most important agent of erosion | moving water |
| Deposition | process by which sediment settles & stops moving |
| Dune | deposit of sand in the desert |
| Moraine | mass of sediment carried down and deposited by a glacier |
| Sand bar | mass of sand carried by ocean waves away from shore |
