This Windows to the Universe site provides beginner, intermediate and advanced information about Martian flooding. It includes a NASA image of Mars despicting outflow channels and river valley networks, which provide evidence for two theories about the global Martian water cycle. Full description.

Archaea are tiny microscopic organisms that account for a fifth of all life and can be found in just about every habitat on Earth, yet most people have never even heard of them. These extraordinary life forms have been found in volcanic craters and hot springs, underneath the ice sheets of Antarctica and even around thermal vents at the bottom of the ocean. It seems no environment is too tough, too ... Full description.

This site from SERC's Starting Point presents sample Gallery Walk questions about the solar system. Topics examined include snowball earth (driving factors, deglaciation mechanisms, development of life), the composition, structure, fusion process, and features of some stars, the subsolar point, water rich comets, the circle of illumination, seasonal changes, time zones, distinguishing characteristics ... Full description.

This activity introduces students to planetary research. Students learn to focus on details by studying and writing descriptions of uncaptioned images of the Solar System. They then increase their knowledge of the planets and their features by comparing their descriptions to those of real researchers. Students organize their findings to infer a key difference between inner and outer planets. Full description.

This chart presents information on the geological processes (volcanism, impact cratering, tectonics, and gradation) that have affected the Earth, Moon, and the terrestrial planets. Students compare the effects these processes have had on the Moon and planets. There is also a blank chart and a sheet of notes on the geological processes that may be used in conjunction with this chart. This chart is ... Full description.

This portal provides links to selected United States Geological Survey (USGS) educational resources that may be useful to educators in primary school grades. Many of these resources can be used directly in the classroom, as preparation for lessons or demonstrations, or as resources for teacher education and curriculum development. Major topic areas include biology, geography, geology, and water resources. ... Full description.

This portal provides links to selected United States Geological Survey (USGS) educational resources that may be useful to undergraduate educators. Many of these resources can be used directly in the classroom, as preparation for lessons or demonstrations, or as resources for teacher education and curriculum development. The resources are also searchable by state or region with the use of an interactive ... Full description.

This portal provides links to selected United States Geological Survey (USGS) educational resources that may be useful to educators in secondary school grades. Many of these resources can be used directly in the classroom, as preparation for lessons or demonstrations, or as resources for teacher education and curriculum development. Major topic areas include biology, geography, geology, and water ... Full description.

This site contains 18 questions on the topic of planetary geology, which covers planetary position, composition, and characteristics. This is part of the Principles of Earth Science course at the University of South Dakota. Users submit their answers and are provided immediate verification. Full description.

This collection of 3D flyover movies depicts geologically interesting localities in the Southwest United States. The selection includes well-known landmarks such as Meteor Crater, Monument Valley, Hopi Buttes, and others. They are available in a number of different formats and file sizes. The movies, the data files used to make them, and the software to view them are all available for free download. ... Full description.