CHAPTER 15 Key Terms
Match each of the terms on the left with its definition on the right. Click on the term first and then click on the matching definition. As you match them correctly, they will move to the bottom of the activity.
avalanche chemical weathering collapse sinkhole debris flow debris slide denudation differential weathering disappearing stream erosion exfoliation frost wedging karst landslide limestone column mass movement (or mass wasting) mudflow physical weathering rockfall rock slide root wedging salt wedging sinkhole sinkhole lake slump soil creep solifluction speleothem stalactite stalagmite tafoni talus (or scree) weathering | (or mass wasting) Downslope movement of rock, soil, snow, or ice caused by gravity. Unequal weathering across a rock surface. The imperceptible downslope movement of soil and regolith as their volume changes in seasonal expansion- A type of mass movement in which rocks tumble off a vertical or nearly vertical cliff face. Pits or cavities on the surface of a rock that form through salt wedging. The transport of rock fragments by moving water, ice, or air. Rapid movement of rock or debris down a steep slope. The breakdown of rocks into smaller pieces, or clasts, without altering the chemical makeup of the rock. A speleothem that grows from the floor of a cavern upward. The process by which solid rock is dissolved and broken apart into smaller fragments. A physical weathering process in which salt crystals grow in pore spaces on a rock’s surface and dislodge individual mineral grains within the rock. A cavern formation that forms by precipitation of calcium carbonate. A sinkhole that has filled with water. The lowering and wearing away of Earth’s surface. A landslide that consists of a mixture of rocks, soil, and vegetation. (or scree) Pieces of angular broken rock that accumulate at the base of a steep slope or vertical cliff. A fast- A fast- A depression in Earth’s surface resulting from the weathering of carbonate rock underground. A type of mass movement in which regolith detaches and slides downslope along a spoon- A physical weathering process in which joints form parallel to a rock surface, creating sheetlike slabs of rock. A process that changes the minerals in a rock through chemical reactions involving water. A landslide that consists of rocks and broken rock fragments. A speleothem that grows from the ceiling of a cavern downward. A physical weathering process in which water trapped in an opening in a rock freezes and expands, causing the opening to grow. A type of soil creep in which freeze- A physical weathering process in which plant roots break rocks apart. A turbulent cloud of rock debris or snow that is mixed with air and races quickly down a steep slope. A stream that leaves the ground surface and flows into subterranean channels. An area dominated by the weathering of carbonate rocks, usually limestone. A cylindrical speleothem resulting when a stalactite joins with a stalagmite. A sinkhole formed where the ceiling of a cavern has collapsed. |