(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…
(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) 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) 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) 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…
(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…
HOW DOES EROSION HAPPEN? LANDSLIDESFIND OUT MOREErosion is the wearing down and the carrying away of the Earth’s rock by the action of wind and moving water. Erosion happens fastest on steep…
Sing about the function of conjunctions "and," "but," "or," and "so." This grammar song provides examples to help kids learn when to use each conjunction.
An adjective is a part of speech that modifies or describes a noun. Review common adjectives, and help kids remember what an adjective is by singing along to this fun grammar song.
