(Encyclopedia) water table, the top zone of soil and rock in which all voids are saturated with water. The level of the water table varies with topography and climate, and depends on the degree to…
WHY IS EARTH SCIENCE USEFUL? HOW DO EARTH SCIENTISTS WORK? GEOLOGY FIND OUT MORE
Earth science is the study of our planet’s physical characteristics, from earthquakes to raindrops, and…
(Encyclopedia) Devils Tower National Monument, 1,347 acres (546 hectares), overlooking the Belle Fourche River, NE Wyo.; it was the first designated U.S. national monument (1906). Devils Tower, 865…
(Encyclopedia) squill, common name for two genera of Old World bulbous plants of the family Liliaceae (lily family). The horticulturists' squill is any plant of the genus Scilla, mostly spring-…
(Encyclopedia) pumicepumicepŭmˈĭs [key], volcanic glass formed by the solidification of lava that is permeated with gas bubbles. Usually found at the surface of a lava flow, it is colorless or light…
(Encyclopedia) Grateful Dead, The, American rock music group formed in 1965 by guitarists Jerry Garcia, 1942–95, and Bob Weir, 1947–, harmonica player Ron “Pigpen” McKernan, 1945–73, bassist Phil…
(Encyclopedia) landslide, rapid slipping of a mass of earth or rock from a higher elevation to a lower level under the influence of gravity and water lubrication. More specifically, rockslides are…
Fact Monster is a kids' reference website brought to you by the editors at Information Please. The editors have compiled this page of frequently asked questions to help you better understand how to…
COASTAL EROSIONGLACIAL EROSIONWIND EROSIONCHEMICAL WEATHERINGMASS MOVEMENTFIND OUT MOREThe process that breaks up and carries away the rocks and soils that make up the Earth’s surface is called…
