| A | B |
|---|
| carbonic acid | an acid that is especially effective in weathering limestone |
| chemical weathering | a break down of rocks using chemicals |
| mechanical weathering | a break down of rocks using physical means |
| erosion | the transport of broken down materials |
| weathering | the breaking down of materials |
| exfoliation | the weathering of whole sheets of rock |
| mass movement | the gradual downward movement of lose material |
| soil profile | a cross section showing layers of soil |
| hydrosphere | the liquid parts of the earth |
| aquifer | underground water that is not trapped |
| evapotranspiration | water lost to atmosphere from plants and evaporation |
| impermeable | rock that water cannot pass through |
| permeability | measures how easily water can pass through |
| water cycle | the flow of water from precipitation to rivers, lakes, ocean and atmosphere |
| artesian well | underground water trapped between two impermeable layers |
| abrasion | rubbing together of material |
| alluvial fan | gravel deposits left by rivers in mountainous areas due to decreased velocity of a river |
| drainage basin | an area that all drains into the same outlet |
| flood plain | an area that a river would naturally flood |
| levee | a built up area to prevent flooding |
| delta | deposits left when a river enters a large body of water |
| ice jam | frozen section of river that can result in flooding |
| meander | a sharp curve in a river |
| oxbow lake | lake left behind when a meander is cut off |
| arete | a sharp ridge between two glaciers |
| cirque | circular valley at the head of a glacier |
| crevass | deep crack in a glacier |
| drumlin | rounded hill left by glacier |
| erratic | very large boulder left by glacier |
| esker | line of gravel left from river under a glacier |
| horn | a pyramid shaped peak left by glacial erosion |
| glacier | year round layer of ice |
| kettle lake | left by large amount of ice |
| moraine | layer of gravel left at the edges of a glacier |
| striations | large grooves in rock left by glaciers |
| till | gravel left by glaciers |
