This Oregon State University site offers in-depth information on groundwater including: human impacts, protection, contamination, regulations, agencies, community action, and community stewardship. Although some information, such as how the geology of Oregon affects groundwater, is specific to that state much of the information is transferable to other locations. Full description.

The Deep Biosphere Laboratory at Goteborg University consists of about 10 people whose unifying interest is in microbial life in underground and sub-seafloor environments. Visitors to the site can access summaries of research projects, personnel information, and links to publications on the topic of underground and sub-seafloor microbes. Research topics include microbes in deep Swedish and Finnish ... Full description.

These resources include sections on the latest quakes, science project ideas, puzzles and games, online activities, a glossary, and cool earthquake facts. In addition, there is an Ask A Geologist section, and earthquake FAQs. One link leads to a teacher page with grade level topics and educational materials. Full description.

Visitors to the ImageBank can view and download photographs, remote imagery, and slide shows. The images are related to earth and space science topics such as dinosaurs, earthquakes, volcanoes, rocks and minerals, mining and petroleum, groundwater, planets and astronomical phenomena, and others. The site contains thousands of images and is searchable by category, continent, country, or keyword. A ... Full description.

This website features the most complete set of astronaut photography of Earth from the beginning of human spaceflight in the 1960s to the digital photographs being downlinked daily from the International Space Station. The underlying database includes over 430,000 records in 2002, with new data added daily. The pages are maintained by the data source at NASA's Johnson Space Center and include search ... Full description.

This set of cards highlights a different extremophile group (e.g. halophiles, thermophiles, acidophiles) with a photo of the environment they live in on the front of the card and then "stats" on the back of the card. Currently the cards are PDF's but will ultimately be printed as 2.5"x3.5" cards (in the spirit of baseball trading cards). Full description.

This activity is designed to introduce students to geologic processes on Earth and how to identify geologic features in images. It also introduces students to how scientists use Earth to gain a better understanding of other planetary bodies in the solar system. Full description.

This site presents a take-home web-based project for introductory geology students. The exercise has the students interpreting the sedimentary geology (lithology and fossils) of the Grand Canyon to create a geological history for the region. It is an open-ended exercise with no absolutely correct answer; it involves students acting as scientists - that is, the way real scientists think and combine ... Full description.

The Edwards Aquifer is one of the most prolific artesian aquifers in the world, serving the diverse needs of almost two million users in south central Texas. Users can access materials that cover all aspects of the aquifer, including hydrogeology, technical, legal, and economic issues, images, endangered species, laws and regulations, and groundwater modeling. News articles, a glossary, bibliography, ... Full description.

Researchers have identified approximately 140 individual impact craters on Earth. These craters probably represent only about 25 percent of those to be found. Assuming an equal rate of impact around the globe, many more craters remain to be discovered, particularly in remote land regions of our planet and in the oceans. This activity uses satellite images of several craters on the earth to study impact ... Full description.