Curated OER
Geographic Landforms
Each slide is a simple notebook page with one landform in blue and its definition in red. There are 26 vocabulary terms in all, some you may want to use, and others easily hidden. It is recommended that you add photos or other graphic...
Other
Maryland Geological Survey: Hazards in Karst Terrain
Describes how and why sinkholes form, how to build a house and the effects on plumping in karst terrain, describes collapse sinkholes, and overall effects of sinkholes.
BBC
Bbc Newsround: Sinkhole Swallows Eight Rare Cars
A slideshow of images shows the destruction caused when a sinkhold emerged, swalling eight Corvettes from a museum.
CK-12 Foundation
Ck 12: Fourth Grade: Earth Science: Erosion and Deposition by Flowing Water
[Free Registration/Login may be required to access all resource tools.] Discusses how flowing water causes erosion; describes how runoff, streams, and rivers change Earth's surface; and identifies features caused by groundwater erosion.