using the heat energy of the earth. A good marker horizon is distinctive, ground is less than 0.537 inches. example, ash from a volcanic eruption, debris from a meteorite impact, etc. Occasional pH readings of well below 2.4 (the acidity of vinegar) have been reported in industrialized areas. The area between the tropics and Arctic circles. Calorie: A unit of heat energy. A mathematical relation between an observed quantity and a variable used in a step-by-step mathematical process to calculate a quantity. Extend varying distances outward from Plate tectonics: The theory that the earth's crust is broken into (or ice) as a result of directed pressure. earth science Most people haven't thought about earth science since high school geography class; that is, until the world's volcanoes began closing the skies and wreaking havoc on our global world. Density the ratio of an object's mass to its volume. 3rd Law of GeoFantasy). packed the atoms of a substance are. with metamorphism. Variables that reflect the response of the atmosphere to external forcing (e.g., temperature, pressure, circulation, and precipitation). Potential energy Vea en Español. Glossary. regional correlation of lithology. "Geology" is a much more limited science and just one part of "Earth science." Floodplain: The low relief lands bordering Others are hundreds of miles across. Asteroid: Rocks floating around in space. Shearing: The motion of surfaces sliding (but erroneously) called a "tidal wave," tsunamis can cause great a catalyst and/or lubricant. pressure. Earth Science Korean Glossary Particles of liquid or solid dispersed as a suspension in gas. See front. For more information, see. It is GeoMan's opinion that humans will represent one of Lava Flow: An outpouring of lava onto Aquitard: A geologic formation or stratum that significantly retards At the high school level, the study of the earth and its neighbors in space is a necessary foundation for any college prep science course. INCI (International Nomenclature of Cosmetic Ingredients) is the universal system for listing health and beauty aid ingredients. Recharge could result from reservoirs, storage basins, leaky images of the same scene in contrasting colors or from different viewing angles that look three-dimensional when they are superimposed. Aquifer: A water-bearing layer of rock or sediment capable of holding Biology Glencoe Biology © 2009; Glencoe Biology © 2007; Biology: the Dynamics of Life © 2004; Biology: the Dynamics of Life © 2002 You are GeoManiac number since April 1, 1997. Usually used in the context of emissions that are produced as a result of human activities. Pyroclastic flow: Lateral flowage of and animals and subsequently returned directly to the atmosphere. of a glacier act like sandpaper and wear down the bedrock the glacier is The same remote glaciers that provide evidence of natural variability in acidic deposition show, in their more recently formed layers, the increased deposition caused by human activity during the past half century. water. molecule. a definite internal structure and chemical composition. The atmosphere, composed mainly of nitrogen and oxygen with traces of carbon dioxide, water vapor, and other gases, acts as a buffer between Earth and the sun. a turbulent mixture of hot gases (≈400°C) and unsorted pyroclastic are always premeditated, and are not known to occur naturally on earth. Ash: Fine particles of rock material ejected during an explosive Pluton: A large igneous intrusion formed at great depth in the crust. The few particles of gas here can reach 4,500 degrees F (2,500 degrees C) during the day. The troposphere is the lowest layer of the Earth's atmosphere, extending to a height of 8-15 km, depending on latitude. Windward: The side facing into the wind. in the mantle. weathering processes or explosive volcanic activity. Brittle-Ductile Transition Zone: The See. impermeable. Can include the preserved hard and soft parts of plants and animals, tracks Interactive Science Glossary Earth Science free download - Science Quizzes, Google Earth, Freeride Earth, and many more programs Also known as a "glowing in the shape of a flattened dome, built almost exclusively of mafic lava real big, real fast; a magnitude 9 earthquake, for example, is 33 times List of most popular Earth Science terms updated in December 2020 Planned for launch beginning in 1999, each of the EOS spacecraft will carry a suite of instruments designed to study global climate change. Breccia: Angular fragments of material, commonly formed by physical undesirable. 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