A structure built between a beach and a community to prevent erosion
sea wall
A structure built at a right angle from the beach into the ocean, meant to prevent sand from eroding too far down the beach
sea groin
Adding sand to an eroded beach; also called beach nourishment
beach reclamation
Adding plants to exposed sand or dirt to prevent erosion
planting
Planting trees around the perimeter of a field of crops to block wind and reduce erosion
windbreak
Carving flat areas into steep hillsides so that crops can grow; prevents gravity and rain from pulling the soil and sediment down the hill
terracing
Planting crops along the natural curves of the land, which prevents rainwater from washing sediment from the field
contour plowing
A structure built across a waterway to control the amount of water on either side and prevents flooding
dam
A structure built or naturally formed along the sides of a river that raises the riverbank, which makes flooding less likely
levee
A structure built in paved areas that allows rainwater to drain of of streets and parking lots
storm drain
Scientists use data from radar, satellite images, and maps to predict where floods are most likely to occur. This helps people prepare.
flood forecast
A tool that measures the size of seismic waves, which are energy waves caused by earthquakes
seismograph
Formed by the constructive process, this landform rises 1,000 feet or more from earth's surface.
mountain
This landform is formed by a destructive process and can either be v-shaped or u-shaped according to how it was formed.
valley
This landform is a made by a destructive process. This steep-walled landform was created by a river.
canyon
This slow-moving river of ice deposits sediment when it melts.
glacier
