The purpose of this resource is to familiarize students with modeling as it relates to remote sensing and digitized images. Students will use the symbolic map created in the beginning activity to produce a digitized image and begin to see why ground verification of satellite data is necessary. Full description.

The MYPond project is an investigation of the chemical reactions, biological processes and inflow/outflow balances found within a pond environment. Instrumentation has been established in two ponds near each other so that a variety of chemical and physical properties are measured at various depths at 15-minute time intervals. Data can be viewed either in real-time or accessed from an archive, and ... Full description.

Users can read and view pictures as part of a discussion of the positive and negative impacts of dam building on the streams, rivers, and watersheds in the United States and in Egypt. Conservation measures intended to increase the availability of water for fish and wildlife are outlined, and a link to the Dam and Reservoir Impact and Information Archive is provided. This archive is an extensive collection ... Full description.

The New Zealand Ministry of Fisheries provides a fact sheet describing fishing methods used around the world and the modern technology used for fish-finding and electronic navigation. Simple diagrams illustrate each item. Related fact sheets accessed via live links discuss fisheries conservation, marine fisheries, human impacts on fisheries, general ocean life, and several topics especially relevant ... Full description.

This program provides an overview of the issues surrounding the construction of the Three Gorges Dam across the Yangtze River in China. When it is completed, this dam will produce the energy of 15 nuclear power plants and tame some of the river's deadliest floods. However, it is also the subject of much controversy. Topics include the loss of important archaeological, cultural, and paleontological ... Full description.

The purpose of the resource is to introduce students to Landsat images and how to identify the land cover types within those images. Full description.

The purpose of the resource is to investigate changes in the major land cover types of Study Sites by examining Landsat satellite images acquired years apart. Full description.

This live, interactive electronic field trip to a North Carolina estuary is conducted on two dates each year. Previous field trips are stored for non-interactive access. Teachers can access resources on such topics as estuarine and coastal monitoring, management, cultural traditions, invasive species, and habitat restoration. The lesson plans include grade level and standards applicable for technology, ... Full description.

A team of scientists from the Virginia Institute of Marine Science (VIMS) is studying the presence of persistent organic pollutants (POPs) in the Antarctic. During January and February 2002 an educator travelled there to participate in the study, and posted daily reports. In addition, this site contains learning activities that you can use to find out how scientists think and work. These include research ... Full description.

This site facilitates a classroom activity in which students create a hypothesis on cloud formation and then conduct online research to either validate or refute their initial hypothesis. The activity begins with a brief laboratory experiment that demonstrates cloud formation and asks students to generate a hypothesis on how clouds form. The activity then switches to students conducting Internet research. ... Full description.