The Lunar and Planetary Institute (LPI) offers a variety of thematic slide sets. Each set is accompanied by a written description of the images, a glossary, and a list of suggested reading material. Each image features a caption explaining what is being shown. Topics include space shuttle views of the Earth, volcanic features on earth and other worlds, wind-formed features and impact craters on Mars, ... Full description.

On this website you will find links to current, forecast, and archived weather for use at home and in the classroom. In addition, there are more than fifty online examples demonstrating severe weather phenomena and the mechanisms for their formation. Links to photo galleries, animations, and demonstration applets on all topics of severe weather can be found in the left menu of each page. The severe ... Full description.

Information on this site about Neptune includes mean distance from the Sun, length of a year, rotation period, mean orbital velocity, inclination of the axis, diameter, and number of observed satellites. Information about the eight moons of Neptune is given in tabular form and there is a photograph of geysers on Triton. Other photographs show the rings of Neptune and the blue clouds of its atmosphere, ... Full description.

This resource introduces students to astronomers and what they do, the force of gravity, Mars and the search for life there, the Milky Way, and how the universe began. There is a game to connect astronomical photographs to their descriptions, an interview with the Sun, and activities to do off-line such as creating a space travel guide and a Big Dipper mobile. Full description.

This section of the Windows to the Universe web site provides information and images about the cosmos including detailed information about the universe today and the history of, and future of, the universe. Windows to the Universe is a user-friendly learning system pertaining to the Earth and Space sciences. The objective of this project is to develop an innovative and engaging web site that spans ... Full description.

This interactive feature lets students compare the sizes of the planets in our solar system. Users can select two solar system bodies (planets, Sun, Earth's moon) and view side-by-side images at the same scale, along with their diameters in kilometers or miles, and a ratio. Science NetLinks is part of MarcoPolo, a partnership between the Verizon Foundation and eight premier educational organizations. ... Full description.

Information on this site about Saturn includes mean distance from the Sun, length of a year, rotation period, mean orbital velocity, inclination of axis, diameter, and number of observed satellites. The view from Earth shows how the appearance changes depending on the relative position in orbit. Pioneer at Saturn is one of the first spacecraft views of Saturn and was taken by Pioneer 11 three days ... Full description.

This lesson plan is part of the Center for Educational Resources (CERES), a series of web-based astronomy lessons created by a team of master teachers, university faculty, and NASA researchers. In this activity, students use general size concepts to classify student height, object size, and planet size. They then build scale planet models based on their discoveries. This lesson contains expected outcomes ... Full description.

Earth's orbit around the Sun, together with the tilt of its axis, results in periodic climate changes around the globe known as seasons. Different locations experience different types of climate changes. For example, some places have extreme seasonal changes in temperature, while others have little temperature change but may have rainy and dry seasons. This interactive feature explains why Earth experiences ... Full description.

Students will learn that Mars, and each planet in the solar system, is unique due to the materials from which it is made and the processes that shaped it. Images and information from Mars exploration voyages, including the Viking Mission in 1975, the Pathfinder Landing in 1997, the Mars Global Surveyor project, the Mars Odyssey and Mars Express spacecrafts, the Mars Exploration Rovers, and the Reconnaissance ... Full description.