Arctic Passage
Companion to the NOVA program about the Franklin and Amundsen expeditions seeking a Northwest Passage (sea route) from the Atlantic to the Pacific across Canada.
Discovering Antarctica
"Take a journey through this site to discover Antarctica for yourself. Each section features activities, images, video clips and fact sheets, to help you learn about this distant, frozen wilderness."
EarthGuide
"An interactive and easy-to-use educational resource about Earth, oceans and the environment." From the Scripps Institution of Oceanography.
Earth Guide
"All you need is a little bit of curiosity. The 'Moving diagrams' that depict basic planetary science and geographic related data may dramatically change the way you look at the Earth."
Earth Science World
Includes an image bank, timescale, climate data, information about geoscience careers, and Earth Science Week.
The Encyclopedia of Earth
"A free, fully searchable collection of articles written by scholars, professionals, educators, and experts ... [which] are written in non-technical language and will be useful to students, educators, scholars, professionals, as well as to the general public."
Energy Tutorial
Covers all sorts of energy sources from fossil fuels to nuclear power to alternative energy.
Exploring Earth
This site, which accompanies our Earth Science textbook, includes Investigations, Visualizations (rotate molecules! view an animation of the solar system!), links by subject, current news updates, and information on local resources.
Geosource
Subject-organized, annotatated links to "web resources for human geography, physical geography, planning, geoscience and environmental science.".
National Marine Sanctuaries Media Library
"An online vault where a comprehensive collection of select video clips and high-resolution still images from America's underwater treasures" is available.
NOAA: Ocean Explorer
"Provides public access to current information on a series of NOAA scientific and educational explorations and activities in the marine environment." Great graphics and videos!
RESGI: Resources for Earth Science and Geography Instruction
"This website contains links which are organized alphabetically around the sequence of topics typically taught in an introductory earth science or physical geography class." Although aimed at teachers, many of these sites would be useful for students as well.
Smithsonian Institution: Ocean Portal
"A unique, interactive online experience that inspires awareness, understanding, and stewardship of the world’s Ocean..." with tons of information, news, photos, videos about the ocean, ocean ecosystems, and ocean history.