Using Graphs to Show Connections
The purpose of this resource is to show how graphs of GLOBE data over time show the interconnectedness of Earth's system components at the local level. Students visit a study site, where they observe and recall their existing knowledge of air, water, soil, and living things to make a list of interconnections among the four Earth system components. They make predictions about the effects of a change in a system, inferring ways these changes affect the characteristics of other related components.
Comparing the Study Site to One in Another Region
The purpose of this resource is to deepen students understanding of the Earth as a system, and their appreciation for the value of diagrams as tools. Students visit a study site, where they observe and recall their existing knowledge of air, water, soil, and living things to make a list of interconnections among the four Earth system components. They make predictions about the effects of a change in a system, inferring ways these changes affect the characteristics of other related components.
Effects of Inputs and Outputs on a Region
The purpose of this resource is to identify what enters and leaves the regional system, and how changes in the input or output of one component can affect other components.
Scaling Galileo's Solar System - Times
In this activity students calculate how long it takes for planets and moons to complete their orbits, and their velocity, in a scale model solar system. The orbit of Saturn is scaled so it takes one day to circle around campus. Students recreate spreadsheets, shown in a Powerpoint module, with formulas that answer various pieces of the overall question. This module is the third in a series of four on the Galilean Solar System, and was designed for an undergraduate class where students are asked
Radioactive Decay and Geochronology
This activity was developed to introduce upper level undergraduate students to dynamical systems modeling. In this exercise, students create a STELLA model of the radioactive decay process. They then learn how the special radioactive series 238U - 206Pb and 237U - 205Pb can be used to determine both the time when a rock initially crystallized and when it underwent a recrystallization, even when the sample being dated was not a closed system. Learning goals, context for use, teaching tips, materi
Ground Water Atlas of the United States: Idaho, Oregon, Washington
This website contains a complete hydro-geologic summary of the Columbia Plateau Regional Aquifer System. The summary includes thirteen maps and figures that are accompanied by text descriptions. All texts and figures are available for download.
Gulf Coast Geology Online Interactive Mapping System
This interactive mapping system is one component of the U. S. Geological Survey's Framework Studies and Assessment of the Gulf Coast Project. This project provides the geologic, geophysical, and geochemical framework for the region. The mapping system displays different aspects of the energy resources which reside in the Gulf of Mexico Basin, one of the major hydrocarbon producing areas of the world.
This webpage presents the searchable section of FishBase, a global information system with all you ever wanted to know about fishes. FishBase is a relational database with information that may be useful to professionals such as research scientists, fishery managers or zoologists. The site has pictures and information on more than 28500 species of fish.
In this activity, students explore Daisyworld, a model of a self-regulating system incorporating positive and negative feedbacks. The model explores the effect of a steadily increasing solar luminosity on daisy populations and the resulting planetary temperature. The activity was developed to introduce upper level undergraduate students to the concepts of dynamical systems modeling. The exercise guides students through some of the mathematics behind the modeling. Learning goals, context for use,
22.091 Nuclear Reactor Safety (MIT)
Problems in nuclear engineering often involve applying knowledge from many disciplines simultaneously in achieving satisfactory solutions. The course will focus on understanding the complete nuclear reactor system including the balance of plant, support systems and resulting interdependencies affecting the overall safety of the plant and regulatory oversight. Both the Seabrook and Pilgrim nuclear plant simulators will be used as part of the educational experience to provide as realistic as possi
Bulletin of the Institute for Antiquity and Christianity, Volume XX, Issue 4
CONTENTS: Cover Illustration Description, Calendar of Events, Chodos to Chair lAC Board, New President of the SAC, The Spring Public Lecture Series 1994: "When Women were Priests: Women's Leadership in Early Christianity," "Deciphering the Body: Early Christian Readings of Truth and Deception in Physical Appearance," "Jehu, Son of Omri?" "Ancient Christian Magic: Ritual Power in Ancient Egypt," and "New Vision and Ancient Text: On Reading Scripture Today", Book Review, Subscription Announcement
Tsunamis and Earthquakes
This site uses animation and virtual reality to show how tsunamis are generated by earthquakes. Learn about tsunami research and mitigation efforts -- how sediments are transported by a tsunami, how researchers decipher the geologic record of prehistoric tsunamis, and the seismograph network of the west coast tsunami warning system.
Strange Harmonic Oscillator Model
The EJS Strange Harmonic Oscillator model displays the motion of two masses connected by a massless rigid rod and the masses may move without friction along two perpendicular rails in a horizontal table. The energy of the oscillator system can be changed via a slider.
Lennard-Jones Potential Model
The EJS Lennard-Jones Potential model shows the dynamics of a particle of mass m within this potential. You can drag particle to change its position and you can drag the energy-line to change its total energy. The Lennard-Jones potential function is a reasonably accurate model of interactions between noble gas atoms. The binding energy epsilon is the depth of the potential well and minimum molecular separation are set equal to unity. This simulation uses uses a natural system of units the m
Modeling a Changing World
Modeling a Changing World written by mathematics professor Tim Chartier and his student Nick Dovidio presents curricular material in an OSP Launcher package to motivate the need for numerically solving ordinary differential equations. The package discusses such applications as a mass-spring system and its connection to computer simulation for movies. An interactive model that simulates a two-body gravitational model of the moon and earth allows for exploring the topic of numerical error. Other m
This is a web-based math, science, and technology competition for teams in grades 6, 7, 8, and 9. Each team proposes a solution to a real problem in their community and competes for regional and national awards (such as U.S. savings bonds). Last year's winning 8th-grade team devised a 2-digit key code system to speed the handling of 911 calls. Registration is open through December 15.
Balls in a Box Model
The Balls in a Box model shows a system of particles is very sensitive to its initial conditions. In general, an isolated system of many particles that is prepared in a nonrandom configuration will change in time so as to approach its most random configuration where it is in equilibrium. What happens if we choose the initial conditions in a very special way? The default initial condition corresponds to eight stationary particles perfectly aligned on the x-axis. Two particles approach from the l
Circumnavigating Pendulum Model
The EJS Circumnavigating Pendulum model displays the dynamics of a mechanical oscillator in uniform circular motion. The mechanical oscillator is free to move in two directions. This 2-dimensional simulation displays all the dynamical features of the Foucault pendulum, except for the dependency of the Foucault pendulum precession on latitude. The simulation shows simultaneously the motion with respect to the inertial coordinate system, and the motion as seen from a co-rotating point of view.
China - EU Relations in a Changing New World
The world today is undergoing tremendous development, changes and adjustments. The international community is facing increasing opportunities and challenges. The present international system and structure are not able to cope with this new situation fully and effectively, and reform is the general demand of the world people at large. Both China and UK are global actors of significant importance. How the two countries should behave in handling the situation? It is a fact that China and UK are dif
COSEE Great Lakes Workshops
These asynchronous workshops focus on environmental topics related to the Great Lakes region. Subjects covered include: The solid earth system; The bedrock and formation of the Great Lakes; Life and Rocks: Current geological processes; Human impacts [vice-versa!]; and Ocean/lake deep exploration (sink holes, underwater archeology, NOAA's exploration book) studying the bottom, characteristics of the water at depth.