These science bulletins from the American Museum of Natural History feature news on space science, astronomy, and astrophysics topics with in-depth feature stories about cutting-edge developments, weekly images from observatories around the world and in space, and and 'Astro Viz', a visualization of astronomical or astrophysical phenomena. Each story features a link to an educators' guide and links ... Full description.

This is a hands-on demonstration of the communication path between the Extreme Ultraviolet Explorer (EUVE) satellite and a scientist on Earth, where students play the parts of various satellites, ground stations, and science centers. The module includes a Java applet animation of the Satellite data flow and background information on the various communication links. The purpose of this lesson plan ... Full description.

This tutorial traces the history of the telescope, beginning with Galileo's first small refractor, to the era of orbiting space telescopes. Topics include Galileo's trouble with the church over the observations he made with his new instrument, Sir Isaac Newton's invention of the reflecting telescope, and the development of technologies that made it possible to construct increasingly larger, more powerful ... Full description.

This 2-3 week module, based on the National Aeronautics and Space Administration's Cassini mission to Saturn, uses the mission as a context for learning fundamental science/math concepts. It consists of six standards-based, constructivist lessons, enrichment activities, and supplemental material such as questions and answers, a glossary, and a chart of Cassini's position in the sky. Full description.

Classroom activities based on how scientists study active volcanoes on the deep ocean floor. Activities include: locating an earthquake epicenter, recording geological and biological information during an ocean floor traverse, creating cross-section profiles of the ocean floor, and graphing seafloor data. Resources include videos and teacher guides. Full description.

Flowing water from rivers and streams is a valuable and plentiful energy resource that people learned to use centuries ago to operate the machinery that was important to their livelihoods. This page features diagrams (some animated) that show the three main principles of water; various types of water wheels; and the modern hydroelectric turbine. There are also animations of various types of mills ... Full description.

This interactive diagram allows the user to follow a drop of water from the source through the treatment process. Water may be treated differently in different communities depending on the quality of the water which enters the plant. Groundwater is water located under ground and typically requires less treatment than water from lakes, rivers, and streams. Users are invited to click on each treatment ... Full description.

The site offers virtual tours of a hydroelectric project, a fish passage, and a generator. It shows how dams operate, the equipment necessary for electrical generation, explains the electrical generation process, and touches on some environmental issues. Other materials presented here include a timeline about the discovery of electricity and power generation, a glossary, and links to newspaper articles ... Full description.

This site offers a virtual walk-through tour of a hydroelectric facility. The creation of hydroelectricity begins at the dam, where the power plant converts the force of falling water into electricity. It shows how dams operate and the equipment necessary for electrical generation. Full description.

This is a lesson that enables the student to describe how hurricanes move and change appearance over time through the use of the pubic domain image processing software. Full description.