Holt, Rinehart and Winston
SG3 CH2
People, Places, and Change
           
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Planet Earth
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Volcanoes: Local Hazard, Global issue
Explore two ways that volcanoes affect Earth—by directly threatening people and the environments adjacent to them, and by ejecting aerosols into the atmosphere.
Sensing Volcanic Effects From Space
Focus on how the effects of volcanic activity can be remotely sensed and monitored.
Is Life on Mars Possible?
Discover if human settlements on Mars are possible.
Mars and Earth: The Quest for Life
Explore human systems on Earth by using unique space-based observations.
What Similar Physical Processes Occur on Both Earth and Mars?
Discover what similar physical processes occur on Earth and Mars.
Section 1: The Sun, Earth, and Moon
The Virtual Solar System
Take a virtual tour of the nine planets! This site supplies information on the planets and their moons and recent discoveries of planets outside our solar system. Follow the link to the interactive multimedia experiment where you can fly through the solar system and even build your own planet!
Web site by Simon Coggins
Exploring the Planets
A tour of the solar system. This site provides information and satellite images for the planets and asteroids, biographies of astronomers through the ages, and surveys the tools of space exploration.
Web site by National Air and Space Museum
Travel to Europa!
Find out what to see and do on your next visit to Europa, one of the four main moons that orbit Jupiter.
Web site by BBC.co.uk
Europa, a Continuing Story of Discovery
See images of and the facts on Europa, the icy moon that orbits Jupiter.
Web site by NASA
Auroras
A cyberguide to the Northern and Southern Lights. This site has still photos, movies, sound, and a whole lot more.
Web site by: The Exploratorium
Solar Max
A guide to the Sun. This site provides current updates on solar activity, solar images, and houses an archive of frequently asked questions and many links to other solar-related sites.
Web site by: The Exploratorium
Mars Pathfinder
The archive of the Mars Pathfinder. Housed at this site are general mission information, still images, movies, and virtual-reality models and animations. It links to related sites, including a future mission to Mars still in the planning stages.
Web site by NASA and Jet Propulsion Laboratory
Earth & Sky
The site of the award-winning science radio series. This site features print and audio versions of current and past articles on earth science, astronomy, and environmental science. It posts a night-sky viewing chart.
Web site by: Public Interactive and Byrd & Block Communications, Inc.
Section 2: Water on Earth
Voyage to the Deep
Features the findings of a deep dive in the Sea of Cortes. This site takes viewers on the submarine Alvin to study hydrothermal vent sites off Mexico's west coast. The site also discusses the possibility of life on Europa, one of Jupiter's moons.
Web site by: University of Delaware College of Marine Studies and WHYY-TV
Savage Seas: The Power of Waves
A site featuring a long article on the power of waves. Shorter pieces explain tsunamis, freak waves, and the trade winds. The site also has animations and a wave machine.
Web site by: PBS On line
Freshwater Ecosystems
A guide to freshwater ecosystems. Rivers and streams, ponds and lakes, and wetlands are examined to reveal their effects on climate and weather. The site also highlights major rivers and lakes.
Web site by: Evergreen Project, Inc.
Marine Ecosystems
A guide to marine ecosystems. This site explores temperate and tropical oceans and shorelines. It also examines estuaries, salt marshes, mud flats, and mangroves. Each section links to other sites.
Web site by: Evergreen Project, Inc.
Ocean Planet
A comprehensive site on the ocean. This is a great site, containing sections that examine the dangers of pollution and overfishing, how the ocean shapes human culture, and a whole lot more. It also has sound clips and links to many other sites.
Web site by The Smithsonian Institution
Section 3: The Land
Volcano World
A cool volcano site. Search for volcanoes by region, locate currently active volcanoes, visit Mount Saint Helens, take a volcano adventure, and search the archives of Ask-a-Volcanologist.
Web site by: University of North Dakota
Can We Predict Volcanic Eruptions?
A short course in volcanoes and their relation to plate boundaries. The site includes video clips and links to other Web resources as well as discusses types of lava and eruptions, warning signs of volcanic activity and methods of monitoring, and minimizing risk.
Web site by: The Annenberg/CPB Project
This Dynamic Earth
A lesson in plate tectonics. This site combines text, photos, and drawings to provide a thorough understanding of the forces that have shaped the surface of Earth.
Web site by: U.S. Geological Survey
The Virtual Cave
A virtual tour of an idealized cave system. Click on a list of individual mineral deposits or use the cave map to go spelunking yourself! The site provides photographs and descriptions.
Web site by: Djuna Bewley and Dave Bunnell
 
 
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