This lesson provides an introduction to the treatment of drinking water to remove harmful or distasteful substances. Topics include the history of treatment and a brief listing of treatment processes.
In this activity, students will use a tutorial on the U.S. Environmental Protection Agency's website to learn about how surface water is treated to make it safe to drink.
Subject:
Mathematics and Statistics, Science and Technology
Micromorphology samples from the Upper Paleolithic cave site, Geissenklosterle, Germany. This cave site has important evidence about early Aurignacian / Upper Paleolithic occupation in Europe, including evidence for some of the earliest evidence for symbolic, artistic and musical expression in Europe.
University of College London hosts a site of notation and reference material on math skills in the context of geoscience. These exercises provide realistic geologic scenarios and work through examples, with notation on the math used to solve them. Examples include using trigonometry to find the true width of strata, logarithms to understand the Richter scale, and vectors to find plate velocities at a triple junction. Relevant vocabulary is linked to a glossary of mathematical terms. Many of the modules link to a MathHelp page for explanation of techniques used, and then come back to the geologic scenario to finish the problem. This resource is part of the Teaching Quantitative Skills in the Geosciences collection. http://serc.carleton.edu/quantskills/
Subject:
Mathematics and Statistics, Science and Technology
Micromorphology samples from Mousterian, Kebaran, Natufian, and Byzantine contexts at Hayonim, Israel. This cave site has important evidence about prehistoric human occupation in the Levant. Its sequence helps document major transitions in the region, including human origins and the origins of agriculture.
This exercise is designed to further explore topics addressed in the accompanying article. Students work through calculations to determine how much fertilizer is needed to meet a plant's nutrient requirements. From these calculations, students draw conclusions about the most cost-effective and environmentally sound farming practices.
Subject:
Mathematics and Statistics, Science and Technology
This is a field investigation where students will explore and observe sediments within a local gravel pit and from their observation create an investigation that will help to determine the nature of the sediments.
This account of the history and evolution of the Mississippi River Delta makes use of text, photographs, and satellite imagery to describe how the delta has formed and migrated throughout recent geologic history. Users can read about the formation and subsequent abandonment of various delta lobes and how deltaic landforms (back bays, levees, barrier islands) are formed and destroyed as a result of delta migration, rising sea level, and human activity.
Some of Britain’s most dramatic scenery is to be found in the Scottish Highlands. The sight of mighty Ben Nevis, the desolate plateau of the Cairngorms, or the imposing landscapes of Glen Coe can unleash the call of the wild in all of us. Although these landforms were largely carved by glacial activity that ended some 10,000 years ago, the rocks themselves tell of a much older history. The Highlands are merely eroded stumps of a much higher range of ancient mountains. This unit is an account of the origin and demise of that ancient mountain range, based on the geological evidence laid before us in rock exposures.
The Core Mantle Boundary (CMB) represents one of the most important physical and chemical discontinuities of the deep Earth as it separates the solid state, convective lower mantle from the liquid outer core. In this seminar course, we will examine our current understanding of the CMB region from integrated seismological, mineral physics and geodynamical perspectives. Instructors will introduce state-of-the-art methodologies that are employed to characterize the CMB region and relevant papers will be discussed in class. Topics will include CMB detection and topography, D'' anisotropy, seismic velocity anomalies (e.g., ultra-low velocity zones), temperature, chemical reactions, phase relations, and mineral fabrications at the core-mantle boundary. These results will be integrated to address the CMB's fundamental role in both mantle and core dynamics.
Contamination in drinking water sources or watersheds can negatively affect the organisms that come in contact with it. The affects can be severe causing illness or, in some cases, even death. It is important for people to understand how they can contribute to the contaminants in drinking water and what treatment can be done to counter these harmful effects. Students will learn about the various methods developed by environmental engineers for treating drinking water in the United States.
Subject:
Mathematics and Statistics, Science and Technology
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