| A | B |
| weathering | breaking down rock at Earth's surface |
| erosion | water, wind, ice, or gravity moves weatherd rock or soil |
| mechanical weathering | type of weathering where rock is physically broken down into smaller pieces |
| chemical weathering | process that breaks down rock through chemical changes |
| abrasion | the grinding away of rock by other rock particles carried in wind, water, or ice |
| ice wedging | process that splits rock when water seeps into cracks, then freezes and expands |
| oxidation | a substance combines with oxygen, forming rust |
| permeable | a material that is full of tiny, connected air spaces that water can seep through |
| Deposition | when sediment is laid down in a new location |
| Marsh | formed when a pond fills up with sediment |
| Delta | sediment is deposited where a river flows into an ocean |
| Barrier Island | formed when storm waves pile up large amounts of sand parallel to the shore |